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Journal articles on the topic 'Juvenile Agriculture'

Author: Grafiati

Published: 4 June 2021

Last updated: 27 July 2025

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1

Trickett, Toni, and Douglas James Warner. "Earthworm Abundance Increased by Mob-Grazing Zero-Tilled Arable Land in South-East England." Earth 3, no. 3 (2022): 895–906. http://dx.doi.org/10.3390/earth3030052.

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Regenerative agriculture is a potential alternative to conventional agricultural systems. It integrates the components of zero-tillage, permanent soil cover, diverse crop rotations and rotational or mob-grazing by ruminant livestock. Earthworms are beneficial soil macrofauna and function as indicators of soil health. A need exists to identify how earthworm populations are affected when all four regenerative agriculture components are implemented simultaneously. This study investigates earthworm abundance in three split-plot treatments located on adjacent land within the same farm: (1) ungrazed

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Adene, Ibidun Comfort. "Effects of Pretilachor Pyribenzoxim Pollution on the Water Quality, Serum Biochemical Indices, and Behavioural Response of Oreochromis niloticus Juveniles." Asian Journal of Research in Agriculture and Forestry 9, no. 3 (2023): 119–27. http://dx.doi.org/10.9734/ajraf/2023/v9i3214.

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Aims: The effects of Pretilachor pyribenzoxim (PP) pollution on the water quality, serum biochemical indices, and behavioural response of Oreochromis niloticus Juveniles were studied. Study Design: The completely randomized design was used in this study. Place and Duration of Study: The experiment was carried out in the Central Laboratory of the Fisheries and Aquaculture Department, Faculty of Agriculture, Adekunle Ajasin University Akungba-Akoko, Nigeria, between January and March 2023. Methodology: The experiment was carried out in 30 L of non-chlorinated and aerated water

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Lancaster, Melanie L., Michael G. Gardner, Alison J. Fitch, Talat H. Ansari, and Anita K. Smyth. "A direct benefit of native saltbush revegetation for an endemic lizard (Tiliqua rugosa) in southern Australia." Australian Journal of Zoology 60, no. 3 (2012): 192. http://dx.doi.org/10.1071/zo12063.

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Land alteration for intensive agriculture has been a major cause of species decline and extinction globally. In marginal grazing regions of southern Australia, native perennial shrubs are increasingly being planted to supplement pasture feeding of stock. Such revegetation has the benefits of reducing erosion and salinity, and importantly, the potential provision of habitat for native fauna. We explored the use of revegetated native saltbush by the sleepy lizard (Tiliqua rugosa) an endemic Australian species common in the region. We repeatedly sampled revegetated saltbush throughout 2010 and 20

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Ping, Li, Bingyong Xu, Qian Zhou, et al. "Comparative Pharmacokinetic Study of Forchlorfenuron in Adult and Juvenile Rats." Molecules 26, no. 14 (2021): 4276. http://dx.doi.org/10.3390/molecules26144276.

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Forchlorfenuron (CPPU) is a plant growth regulator extensively used in agriculture. However, studies on CPPU pharmacokinetics are lacking. We established and validated a rapid, sensitive, and accurate liquid chromatography–mass spectrometry method for CPPU detection in rat plasma. CPPU pharmacokinetics was evaluated in adult and juvenile rats orally treated with 10, 30, and 90 mg/kg of the compound. The area under the plasma drug concentration–time curve from 0 to 24 h (AUC), at the final time point sampled (AUC0–t), and the maximum drug concentration of CPPU increased in a dose-dependent mann

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Görlach, Bruno Maximilian, Jon Niklas Henningsen, Jens Torsten Mackens, and Karl Hermann Mühling. "Evaluation of Maize Growth Following Early Season Foliar P Supply of Various Fertilizer Formulations and in Relation to Nutritional Status." Agronomy 11, no. 4 (2021): 727. http://dx.doi.org/10.3390/agronomy11040727.

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The efficiency of phosphorus (P) use in agriculture needs to be improved, with farmers being increasingly forced by law to reduce P soil fertilization. Thus, P foliar application might become more important in agriculture. The effect of foliar P fertilization has not been widely studied in maize, despite it being a crop with high P demand during juvenile development. Our aim was to investigate the effect of P foliar application during juvenile development on maize crop growth and yield. We conducted outdoor pot experiments to investigate the effect on P uptake, translocation, and dry matter fo

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Thomson, Gerald. ""We Are Making Good under the Honor System": The Social Rehabilitation of Juvenile Males through Militarism, Moral Reform, and Enforced Work Routines at the British Columbia Boy's Industrial School, 1919–1934." Journal of the History of Childhood and Youth 17, no. 1 (2024): 41–59. http://dx.doi.org/10.1353/hcy.2024.a916839.

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Abstract: Industrial schools were the dominant mechanisms for the social rehabilitation of wayward juveniles in North America from the late nineteenth to mid-twentieth century. The research concerning such schools in shaping young lives is scattered within the historiography of youth. Girls were taught domestic skills and boys were trained in trades such as agriculture. Forced labor was not punishment but seen as moral uplift for troubled youth. This article studies the British Columbia Boy's Industrial School from 1919 to 1934 under David Blackwood Brankin, whose "honor system" combined disci

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Pianezzola, E., S. Roth, and B. A. Hatteland. "Predation by carabid beetles on the invasive slug Arion vulgaris in an agricultural semi-field experiment." Bulletin of Entomological Research 103, no. 2 (2012): 225–32. http://dx.doi.org/10.1017/s0007485312000569.

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AbstractArion vulgaris Moquin-Tandon 1855 is one of the most important invasive species in Europe, affecting both biodiversity and agriculture. The species is spreading in many parts of Europe, inflicting severe damage to horticultural plants and cultivated crops partly due to a lack of satisfactory and effective management solutions. Molluscicides have traditionally been used to manage slug densities, although the effects are variable and some have severe side-effects on other biota. Thus, there is a need to explore potential alternatives such as biological control. The nematode Phasmarhabdit

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Fabiyi, O. A., A. O. Claudius-Cole, and G. A. Olatunji. "In Vitro Assessment of N-Phenyl Imides in the Management of Meloidogyne Incognita." Scientia Agriculturae Bohemica 52, no. 3 (2021): 60–65. http://dx.doi.org/10.2478/sab-2021-0007.

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Abstract The infestation with root knot nematode Meloidogyne spp. is a key issue in agriculture. Conventional control methods are based on the use of synthetic nematicides, which comes with severe environmental problems. In this study, n-phenyl imide and n-phenyl phthalamic acid were synthesized and reacted independently with Enantia chlorantha crude extract–manganese chloride complex. The effects of the resulting organic compounds were appraised against the root knot nematode Meloidogyne incognita (Kofoid and White 1919) juveniles and eggs in two laboratory experiments. The most active compou

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Rathod, S. S., and S. K. Pawar. "Biocontrol Potential of Aphelinidae Family: Unravelling Mechanism for Effective Pest Management in Agriculture." International Journal of Research Studies on Environment, Earth, and Allied Sciences (IJRSEAS) 2, no. 2 (2025): 98–101. https://doi.org/10.5281/zenodo.15332063.

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Abstract"The Aphelinidae family comprises parasitoid noted for bio management in conflict with multiple pest,especially aphids. This abstract explores their potential as biological control agents, Highlighting their life cycle,host Specificity and effectiveness in managing aphid population. Emphasizing their role in sustainable pest management, this review underscores the significance of Aphelinidae in Integrated pest management Strategies and their contribution to ecological balance in agriculture ecosystem capabilities against various wasps known for their biocontrol capabilities against var

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Buikstra, Jane E., Lyle W. Konigsberg, and Jill Bullington. "Fertility and the Development of Agriculture in the Prehistoric Midwest." American Antiquity 51, no. 3 (1986): 528–46. http://dx.doi.org/10.2307/281750.

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In this article we develop and apply a method for estimating fertility in paleodemographic study. The proportion D30+/D5+, generated from standard life table calculations, is used to estimate relative fertility rates for eight Woodland and Mississippian populations represented by skeletal series from west-central Illinois. The inferred pattern of fertility increase through time is then considered in the context of key variables that define diet, technology, and sedentism. We conclude that changes in diet or food preparation techniques are implicated in this demographic change. The absence of a

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Triyanto, Triyanto, Tarsim Tarsim, and Deny Sapto Chondro Utomo. "INFLUENCES OF LAMP IRRADIATION EXPOSURE ON GROWTH AND SURVIVAL OF JUVENILE SNEAKHEAD FISH Channa striata (Bloch, 1793)." e-Jurnal Rekayasa dan Teknologi Budidaya Perairan 8, no. 2 (2020): 1029. http://dx.doi.org/10.23960/jrtbp.v8i2.p1029-1038.

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The research has been conducted by February to March 2018 in the Laboratory of Aquaculture, Faculty of Agriculture, Lampung University. The research aim of this to acknowledge the influences of lamp irradiation exposure on growth and survival of juvenile sneakhead fish (Channa striata). This research used a completely randomized design with five treatments, A (12B;12D), B (9B;15D), C (6B;18D), D (3B;21D), and E (0B;24D) with three replications. The research showed that the effect of the length of light irradiation exposure has a significant effect on growth and survival of juvenile snakehead f

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Ricci, Esther Lopes, Miriam Oliveira Ribeiro, André Rinaldi Fukushima, et al. "Perinatal exposure to an aromatase inhibitor glyphosate-base herbicide reduced male and female social behavior in juvenile age and the sexual behavior at adult female rat." Brazilian Journal of Veterinary Research and Animal Science 59 (May 25, 2022): e186467. http://dx.doi.org/10.11606/issn.1678-4456.bjvras.2022.186467.

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Objectives: The herbicide glyphosate, a pesticide used in agriculture to control weeds, both in food crops and in other agricultural areas, has been identified as an endocrine modulator through the inhibition of aromatase activity and the activation of estrogen receptors. The present study examined the effects of a glyphosate-based herbicide (Roundup® (GLY-BH) on sexual dimorphism of rats after perinatal exposure to low and high GLY-BH in males and females offspring. Methods: Two groups of pregnant rats were treated with two doses of GLY-BH (50 or 150 mg/kg) from day 15 of gestation (GD15) to

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Okogwu, Okechukwu Idumah, Florence Amarachineke Elebe, and Godwin Nkwuda Nwonumara. "Combinations of cypermethrin and dimethoate alter behavior, hematology and histology of African Catfish, Clarias gariepinus." Environmental Analysis Health and Toxicology 37, no. 4 (2022): e2022028. http://dx.doi.org/10.5620/eaht.2022028.

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Cypermethrin and dimethoate are pesticides frequently used in agriculture to eliminate pests. Contemporaneity of these and other pesticides in commercial preparations and several aquatic ecosystems is well known, though poorly studied. This study aims to evaluate the effect of sublethal concentrations of combinations of cypermethrin and dimethoate on juvenile catfish, Clarias gariepinus, given that the pesticides concomitantly occur in the floodplains were the fish breed. Behavioral, hematological and histopathological changes in juvenile fish exposed to sublethal concentrations were monitored

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Savic, Nebojsa, and Radoslav Dekic. "Effects of copper microparticles on the growth and survival of juvenile rainbow trout (Oncorhynchus mykiss Wal.)." Journal of Agricultural Sciences, Belgrade 66, no. 4 (2021): 359–69. http://dx.doi.org/10.2298/jas2104359s.

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During the farming of juvenile rainbow trout (Oncorhynchus mykiss), losses can be very high. In aquaculture, various agents are used, such as copper, for the purpose of preventive action and prevention of the appearance of pathogens (ectoparasites, etc.). The aim of this study was to determine the effects of substrate-fixed copper microparticles on the growth and survival of juvenile rainbow trout (Oncorhynchus mykiss) up to the age of 5 months. The experiment was conducted in the Laboratory for Aquaculture of the Faculty of Agriculture, University of Banja Luka, for 142 days in flow aquariums

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Dr. Kavita Krishnamoorti. "Application of Insect Growth Regulators (IGRs) as Biopesticides for Sustainable Agriculture." International Journal of Scientific Research in Science and Technology 11, no. 2 (2024): 936–39. http://dx.doi.org/10.32628/ijsrst24112156.

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The application of conventional pesticides is underlined by many negative externalities including environmental degradation and pest resistance. Consequently, use of biopesticides as alternative agrochemicals is recommended to meet sustainable development goals. Insect growth regulators (IGRs) are biochemical biopesticides. Actually, Biochemical biopesticides are compounds (or exact synthetic analogue) of natural origin possessing active ingredients that control pest in a way that are nontoxic to the target pest, the environment and humans. So, insecticides with growth regulating properties ma

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Alonso, Valentina, Shyon Nasrolahi, and Adler Dillman. "Host-Specific Activation of Entomopathogenic Nematode Infective Juveniles." Insects 9, no. 2 (2018): 59. http://dx.doi.org/10.3390/insects9020059.

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Entomopathogenic nematodes (EPNs) are potent insect parasites and have been used for pest control in agriculture. Despite the complexity of the EPN infection process, hosts are typically killed within 5 days of initial infection. When free-living infective juveniles (IJs) infect a host, they release their bacterial symbiont, secrete toxic products, and undergo notable morphological changes. Collectively, this process is referred to as “activation” and represents the point in a nematode’s life cycle when it becomes actively parasitic. The effect of different host tissues and IJ age on activatio

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Holmes, Eric J., Parsa Saffarinia, Andrew L. Rypel, Miranda N. Bell-Tilcock, Jacob V. Katz, and Carson A. Jeffres. "Reconciling fish and farms: Methods for managing California rice fields as salmon habitat." PLOS ONE 16, no. 2 (2021): e0237686. http://dx.doi.org/10.1371/journal.pone.0237686.

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Rearing habitat for juvenile Chinook Salmon (Oncorhynchus tshawytscha) in California, the southernmost portion of their range, has drastically declined throughout the past century. Recently, through cooperative agreements with diverse stakeholders, winter-flooded agricultural rice fields in California’s Central Valley have emerged as ecologically functioning floodplain rearing habitat for juvenile Chinook Salmon. From 2013 to 2016, we conducted a series of experiments examining methods to enhance habitat benefits for fall-run Chinook Salmon reared on winter-flooded rice fields in the Yolo Bypa

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Mir, Snowber, Adnan Abubakr, Adnan Amin, et al. "Acute Toxicity of Mancozeb (fungicide) on Juvenile Common Carp (Cyprinus carpio var. communis)." International Journal of Environment and Climate Change 15, no. 3 (2025): 11–17. https://doi.org/10.9734/ijecc/2025/v15i34750.

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Pesticides, particularly fungicides like Mancozeb (MZ), are extensively used in agriculture for controlling fungal pathogens, but their persistence in environmental systems poses significant risks to aquatic ecosystems. This study investigates the acute toxicity of Mancozeb on juvenile common carp (Cyprinus carpio var. communis) by assessing its effects through a 96-hour static bioassay. The study determined the median lethal concentration (LC50) values of Mancozeb at 24, 48, 72, and 96 hours. Water quality parameters during the bioassay remained stable, ensuring the reliability of the toxicit

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Dimitrakakis, Nikolaos, Anna Waterhouse, Shanda Lightbown, et al. "Biochemical and Hematologic Reference Intervals for Anesthetized, Female, Juvenile Yorkshire Swine." Journal of the American Association for Laboratory Animal Science 61, no. 1 (2022): 21–30. http://dx.doi.org/10.30802/aalas-jaalas-21-000014.

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Swine are widely used in biomedical research, translational research, xenotransplantation, and agriculture. For these uses, physiologic reference intervals are extremely important for assessing the health status of the swine and diagnosing disease. However, few biochemical and hematologic reference intervals that comply with guidelines from the Clinical and Laboratory Standards Institute and the American Society for Veterinary Clinical Pathology are available for swine. These guidelines state that reference intervals should be determined by using 120 subjects or more. The aim of this study was

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Bhavya L.R and Sanal Kumar M.G. "Ill-effects of fytran on survival and reproduction of a tropical soil spring tail - Cyphoderus javanus Borner." Ecology, Environment and Conservation 29, no. 02 (2023): 802–5. http://dx.doi.org/10.53550/eec.2023.v29i02.043.

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Soil collembolans are regarded as ecosystem engineers determining the soil fertility, biological structure and environmental stability. The tiny predominant tropical detritivore soil collembolan Cyphoderus javanus, was selected as a tool for assessing the potential adverse effects of the fungicide fytran on various life history parameters under laboratory conditions. Findings of the present study revealed that fecundity rates, incubation time, survival success, juvenile hatching and longevity were observed to be declined significantly with fungicidal amount elevation. Anthropogenic interventio

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Arunkumar, J. U1 Ambika Binesh2 and V. Kaliyamurthi2*. "Impact of Arthritis on Public Health." Trends in Agriculture Science 2, no. 5 (2023): 348–51. https://doi.org/10.5281/zenodo.7984675.

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Arthritis, a chronic and debilitating condition affecting the joints, poses a significant burden on public health systems worldwide. Arthritis affects people of all ages, with the prevalence rising steadily due to population aging and lifestyle factors. The condition encompasses various types, including osteoarthritis, rheumatoid arthritis, and juvenile arthritis, each presenting unique challenges. Arthritis not only causes pain and physical limitations but also exerts a substantial economic burden on individuals and society as a whole. Arthritis poses a significant challenge to public health,

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Hafez, S. L., P. Sundararaj, Z. A. Handoo, A. M. Skantar, L. K. Carta, and D. J. Chitwood. "First Report of the Pale Cyst Nematode, Globodera pallida, in the United States." Plant Disease 91, no. 3 (2007): 325. http://dx.doi.org/10.1094/pdis-91-3-0325b.

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In 2006, a cyst nematode was discovered in tare dirt at a potato (Solanum tuberosum) processing facility in eastern Idaho. The nematode was found during a routine survey conducted jointly by the Idaho State Department of Agriculture and the USDA Animal and Plant Health Inspection Service through the Cooperative Agricultural Pest Survey program. Extensive additional sampling from two suspect fields led to the identification of the same nematode in a 45-acre (18.2-ha) field located in northern Bingham County. The morphology of cysts and second-stage juveniles and molecular analyses established t

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Gibson, Neil, Colin Yates, Margaret Byrne, Margaret Langley, and Rujiporn Thavornkanlapachai. "The importance of recruitment patterns versus reproductive output in the persistence of a short-range endemic shrub in a highly fragmented landscape of south-western Australia." Australian Journal of Botany 60, no. 7 (2012): 643. http://dx.doi.org/10.1071/bt12194.

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Calothamnus quadrifidus subsp. teretifolius A.S.George & N.Gibson is a short-range endemic shrub whose habitat has been greatly reduced by clearing for agriculture. Reproductive output was high in all populations sampled, although there were large differences among populations in fruit set, the number of seeds per fruit and seed germination. These traits showed no relationship to population size, degree of isolation, or fragment size, which contrasts strongly with the patterns found in a widespread congener. Demographic studies in remnants with an intact understorey showed stable adult pop

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Anastasiadou, Pelagia, Nikoletta Ntalli, Katerina Kyriakopoulou, and Konstantinos M. Kasiotis. "Nematicidal Extracts of Chinaberry, Parsley and Rocket Are Safe to Eisenia fetida, Enchytraeus albidus, Daphnia magna and Danio rerio." Agriculture 15, no. 4 (2025): 436. https://doi.org/10.3390/agriculture15040436.

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In the frame of a “greener agriculture”, the development of new natural pesticides that are safer than their synthetic counterparts is gaining ground. Nonetheless, the origin of their nature does not necessarily imply their eco-friendliness. Hence, specific ecotoxicological studies are needed, with products being subjected to hazard and consequent risk assessment, for registration purposes. We have previously described on the strong nematicidal activity of Melia azedarach (chinaberry), Petroselinum crispum (parsley) and Eruca sativa (rocket) against the nematode Meloidogyne incognita. With thi

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Sjahril, Rinaldi, Muh Riadi, Ifayanti Ridwan Saleh, et al. "Katokkon Pepper (Capsicum chinense Jacq.) Ploidy Determination by Morphological Characteristic and Flow Cytometry Analysis." AGRIVITA Journal of Agricultural Science 45, no. 2 (2023): 288–95. http://dx.doi.org/10.17503/agrivita.v45i2.3633.

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Katokkon pepper plant is originated from Toraja, South Sulawesi, Indonesia. This endemic pepper variety has unique hot and spicy characters with a distinctive bell pepper aroma, and aesthetic shape similar to paprika, but with smaller size. This research was conducted to identify ploidy level and plant morphology of colchicine induced Katokkon pepper at Laboratory of Plant Reproduction Bioscience and Biotechnology, Department of Agronomy, Faculty of Agriculture, Universitas Hasanuddin and experimental field of Agricultural Extension System Vocational High School Santo Paulus Tana Toraja (S 03°

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Varsha, Rani, Sinha Ankit, and Kanaujia Amita. "Status, Distribution and Food Availability for Sarus Crane (Grus antigone) in Hassanganj and Bangarmau Tehsil under Unnao District, Uttar Pradesh, India." International Journal of Zoological Investigations 08, no. 01 (2022): 592–98. http://dx.doi.org/10.33745/ijzi.2022.v08i01.066.

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Almost all crane species rely on wetlands at some time during their annual life cycle, primarily for nesting but also for foraging and protective cover. Many species also have close affiliation with agricultural fields. The sarus cranes have coexisted with wetlands for thousands of years. The sarus crane is the tallest flying bird as categorized as Vulnerable species in the IUCN Red List of Threatened Species. Sarus crane (Grus antigone) is a large nonmigratory bird. Their primary habitat included wetlands, marshes and water bodies. But now these sarus cranes species have adapted to using agri

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Neshumaeva, Nadezhda A., Aleksandr V. Sidorov, and Sergei A. Gerasimov. "Assessment of juvenile resistance of barley and wheat accessions to dark brown leaf spot." E3S Web of Conferences 390 (2023): 05003. http://dx.doi.org/10.1051/e3sconf/202339005003.

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Dark brown leaf spot of cereal crops caused by the Bipolaris sorokiniana fungus causes significant crop losses worldwide. To create new resistant varieties, it is necessary to use sources with a high level of resistance. In the laboratory of physiology and biotechnology of the Krasnoyarsk Research Institute of Agriculture, the juvenile resistance of the breeding material of spring barley and spring soft wheat of competitive variety testing to dark brown spot was evaluated. The most toxigenic isolates of Bipolaris sorokiniana were preliminarily selected for the production of inoculum, which was

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SILVA, LUNARA GRAZIELLY COSTA DA, JEFFERSON FRANCISCO LIMA MOREIRA, HERICLES BRUNO BEZERRA HOLANDA, EMANUEL LUCAS BEZERRA ROCHA, and POLIANA COQUEIRO DIAS. "EVALUATION OF CARNAUBA PROGENIES AND ESTIMATES OF GENETIC PARAMETERS IN THE JUVENILE PHASE." Revista Caatinga 31, no. 4 (2018): 917–25. http://dx.doi.org/10.1590/1983-21252018v31n414rc.

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ABSTRACT Carnauba (Copernicia prunifera) is a forest species with multiple uses, and is of great economic and social importance for several communities involved in extractive agriculture in northeastern Brazil. However, there are few studies on genetic variability in this species. Thus, this work aimed to produce information about the genetic characterization of C. prunifera seeds and seedlings, using provenance and progeny evaluations. A progeny test was performed in a plant nursery, using seeds of 36 matrices sampled in the municipalities of Mossoró and Apodi (Rio Grande do Norte State), and

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Fog, Kåre. "Three brown frog species in Denmark have different abilities to colonise new ponds." Herpetozoa 37 (February 20, 2024): 43–55. http://dx.doi.org/10.3897/herpetozoa.37.e107986.

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For 29 consecutive years, the populations of three species of brown frogs, Rana arvalis, R. dalmatina and R. temporaria, were monitored in an open area in South Zealand, Denmark, with no direct influence of agriculture. Population sizes were recorded by counting egg clumps and showed large variations from year to year. The total population of R. arvalis differed by a factor of 100 between the years with the lowest and the highest numbers. A total of 19 initially unoccupied suitable waterbodies could potentially be colonised by the frogs. Rana dalmatina colonised all of the ponds, mostly in the

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SYMES, CRAIG T., and STEPHAN WOODBORNE. "Migratory connectivity and conservation of the Amur Falcon Falco amurensis: a stable isotope perspective." Bird Conservation International 20, no. 2 (2010): 134–48. http://dx.doi.org/10.1017/s0959270910000237.

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SummaryStable isotopes (δD, δ13C, δ15N) were measured in adult and juvenile Amur Falcon Falco amurensis feathers to understand the migratory connectivity of this species. Using the OIPC (Online Isotopes in Precipitation Calculator) and a calibration curve for American Kestrels Falco sparverius we predicted the breeding range of South African Amur Falcons in the Palaearctic. δD values for juvenile feathers (mean ± SE = -58.1 ± 2.5‰, range -83.9 to -25.7‰) and predicted Palaearctic annual precipitation values indicated that juvenile Amur Falcons in South Africa originated from across their entir

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Daunt, F., V. Afanasyev, A. Adam, J. P. Croxall, and S. Wanless. "From cradle to early grave: juvenile mortality in European shags Phalacrocorax aristotelis results from inadequate development of foraging proficiency." Biology Letters 3, no. 4 (2007): 371–74. http://dx.doi.org/10.1098/rsbl.2007.0157.

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In most long-lived animal species, juveniles survive less well than adults. A potential mechanism is inferior foraging skills but longitudinal studies that follow the development of juvenile foraging are needed to test this. We used miniaturized activity loggers to record daily foraging times of juvenile and adult European shags Phalacrocorax aristotelis from fledging to the following spring. Juveniles became independent from their parents 40 days post-fledging. They compensated for poor foraging proficiency by foraging for approximately 3 h d −1 longer than adults until constrained by day len

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Ranard, Katherine, Matthew Kuchan та John Erdman. "Effect of Natural Vs. Synthetic α-tocopherol on Neurogenesis-Related Genes in Cerebella of Juvenile α-tocopherol Transfer Protein-Null Mice". Current Developments in Nutrition 4, Supplement_2 (2020): 1060. http://dx.doi.org/10.1093/cdn/nzaa054_132.

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Abstract Objectives Vitamin E (α-tocopherol, α-T) restriction during brain development alters the expression of neurogenesis-related genes in cerebella of juvenile α-tocopherol transfer protein-null (Ttpa−/−) mice. Synthetic α-T (SYN), compared to natural α-T (NAT), downregulates cerebellar myelin genes in adolescent Ttpa−/− mice. We studied how early-life exposure to SYN or NAT affects the expression of neurogenesis-related genes in juvenile Ttpa−/− mice. Methods Male and female Ttpa+/+ and Ttpa−/− mice were nursed by Ttpa+/−dams fed AIN-93G-based diets containing either SYN (∼816 mg α-T/kg d

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Suknev, D. L., V. N. Plankin, V. A. Shatalin, A. L. Abramov, and V. V. Peredereev. "Development of standards for artificial reproduction of pike perch Sander lucioperca in the West Siberian Fishery Basin (Novosibirsk region)." Rybovodstvo i rybnoe hozjajstvo (Fish Breeding and Fisheries), no. 9 (September 26, 2023): 584–94. http://dx.doi.org/10.33920/sel-09-2309-02.

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The results of fish-breeding works on artificial reproduction of sander — Stizostedion lucioperca in the West Siberian fishery basin, carried out at the fish-breeding and production base of LLC “Rybkhoz”, are presented. In the course of the research, standards for artificial reproduction of sander were worked out, taking into account the indicators approved for other regions of the country by the Order of the Ministry of Agriculture of the Russian Federation dated 30.01.2015 № 25, “On approval of the Methodology for calculating the volume of extraction (catch) of aquatic biological resources n

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Böll, Susanne, Benedikt Schmidt, Michael Veith, et al. "Amphibians as indicators of changes in aquatic and terrestrial ecosystems following GM crop cultivation: a monitoring guideline." BioRisk 8 (August 8, 2013): 39–51. https://doi.org/10.3897/biorisk.8.3251.

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Amphibians are a suitable indicator group for monitoring possible negative direct or indirect effects of GMO cultivation at the individual and population level. Direct effects could occur in aquatic ecosystems via uptake of GM pollen or GM detritus by anuran larvae. However, indirect negative effects caused by changes in cultivation practices (changes in pesticide use, for instance) are more likely. The VDI Guideline 4333 aims to ensure comprehensive monitoring of the different life-stages of anuran species that are common in agricultural landscapes of Austria, Germany and Switzerland. The gui

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Dwinanti, Sefti Heza, Kekey Zakaria, Muhammad Amin, and Madyasta Anggana Rarassari. "Pemanfaatan Tepung Lemna sp. dan Enzim Non-Starch Polysaccharides (NSPs) Pada Pakan Ikan Tambakan (Helostoma temminckii)." Journal of Marine and Aquatic Sciences 9, no. 1 (2023): 1. http://dx.doi.org/10.24843/jmas.2023.v09.i01.p01.

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Lemna sp. is one of the local raw materials that can be used to substitute fish flour and soybean meal in fish feed formulation because its protein contain. However, protein plant-based in fish feed formulation need additional enzyme (exogenous) such as Non starch polysaccharides (NSP) enzyme which able to increase feed digestibility. The aim of this study is to determine the effect of NSP enzyme to Lemna sp. flour in feed formulation for kissing gouramy’s growth and feed efficiency. This research has been conducted at the Experimental Pond Laboratory, Aquaculture Study Program and Laboratory

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Fog, Kåre. "Three brown frog species in Denmark have different abilities to colonise new ponds." Herpetozoa 37, no. () (2024): 43–55. https://doi.org/10.3897/herpetozoa.37.e107986.

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For 29 consecutive years, the populations of three species of brown frogs, <i>Rana arvalis</i>, <i>R. dalmatina</i> and <i>R. temporaria</i>, were monitored in an open area in South Zealand, Denmark, with no direct influence of agriculture. Population sizes were recorded by counting egg clumps and showed large variations from year to year. The total population of <i>R. arvalis</i> differed by a factor of 100 between the years with the lowest and the highest numbers. A total of 19 initially unoccupied suitable waterbodies could potentially be colonised by the frogs. <i>Rana dalmatina</i> coloni

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Taborsky, Barbara. "Mothers determine offspring size in response to own juvenile growth conditions." Biology Letters 2, no. 2 (2006): 225–28. http://dx.doi.org/10.1098/rsbl.2005.0422.

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Through non-genetic maternal effects, mothers can tailor offspring phenotype to the environment in which young will grow up. If juvenile and adult ecologies differ, the conditions mothers experienced as juveniles may better predict their offspring's environment than the adult environment of mothers. In this case maternal decisions about investment in offspring quality should already be determined during the juvenile phase of mothers. I tested this hypothesis by manipulating juvenile and adult maternal environments independently in a cichlid fish. Females raised in a poor environment produced l

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Graham, Thomas, Ralph Scorza, Raymond Wheeler, et al. "Over-Expression of FT1 in Plum (Prunus domestica) Results in Phenotypes Compatible with Spaceflight: A Potential New Candidate Crop for Bioregenerative Life Support Systems." Gravitational and Space Research 3, no. 1 (2015): 39–50. http://dx.doi.org/10.2478/gsr-2015-0004.

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ABSTRACT Tree fruits (e.g., apples, plums, cherries) are appealing constituents of a crew menu for long-duration exploration missions (i.e., Mars), both in terms of their nutritive and menu diversity contributions. Although appealing, tree fruit species have long been precluded as candidate crops for use in plant-based bioregenerative life support system designs based on their large crown architecture, prolonged juvenile phase, and phenological constraints. Recent advances by researchers at the United States Department of Agriculture (USDA) have led to the development of plum (Prunus domestica

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Boulahbel, Bilel, Fethi Bensebaa, Radia Bezzar-Bendjazia, Maroua Ferdenache, Karima Sifi, and Samira Kilani-Morakchi. "Sublethal impacts of pyriproxyfen on biological traits of non-target species, Drosophila melanogaster (Diptera: Drosophilidae)." Bioagro 37, no. 1 (2025): 13–24. https://doi.org/10.51372/bioagro371.2.

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Pyriproxyfen, a juvenile hormone analog (JHA), is considered as reduced-risk alternative to synthetic pesticides for crop protection. It has been frequently used in agriculture and public health to manage insect pests. However, recent studies have reported that pyriproxyfen may have adverse physiological effects on non-target organisms. This study investigated the effects of sublethal doses of the endocrine disrupting insecticide pyriproxyfen on Drosophila melanogaster Meigen (Diptera: Drosophilidae) as a non-target and biological model. Results showed that pyriproxyfen had a noticeable effect

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Crane, Mason J., David B. Lindenmayer, and Ross B. Cunningham. "The use of den trees by the squirrel glider (Petaurus norfolcensis) in temperate Australian woodlands." Australian Journal of Zoology 58, no. 1 (2010): 39. http://dx.doi.org/10.1071/zo09070.

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Effective conservation relies on understanding the biology of particular species and how they use key resources. For many arboreal mammals, tree hollows are a key den site. We examined the use of tree hollows by the squirrel glider (Petaurus norfolcensis) in south-eastern Australia. Over a five-month study, individual squirrel gliders used multiple hollow trees (average = 7) as den sites. Den sites were often adjacent to areas where nocturnal activities took place. The average distance between den sites used by individual gliders on successive days was 218 m. Dens were often shared by an adult

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Vera-Morales, Marcos, Rafael F. Castañeda-Ruiz, Daynet Sosa, Carlos Arias-Vega, Adela Quevedo, and María F. Ratti. "Bioactive compounds from bacterial and fungal agents for the control of phytopathogenic nematodes: mechanisms of action, interactions, and applications." Scientia Agropecuaria 15, no. 1 (2024): 143–57. http://dx.doi.org/10.17268/sci.agropecu.2024.011.

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Phytopathogenic nematodes are a threat for agriculture, they cause plant diseases and economic losses worldwide. Currently, the pursuit of compounds of biological origin for nematode biocontrol has become a priority as an environmentally friendly alternative. Microorganisms-derived compounds have several strategies to reduce the populations of infectious juvenile nematodes. Although microorganisms and their metabolites are the focus of literature reports reviews on nematicidal control, interactions between fungi, bacteria, and nematodes, as well as the compounds that are generated in such inte

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Donelson, Jennifer M., Philip L. Munday, and Mark I. McCormick. "Parental effects on offspring life histories: when are they important?" Biology Letters 5, no. 2 (2009): 262–65. http://dx.doi.org/10.1098/rsbl.2008.0642.

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Both the parental legacy and current environmental conditions can affect offspring life histories; however, their relative importance and the potential relationship between these two influences have rarely been investigated. We tested for the interacting effects of parental and juvenile environments on the early life history of the marine fish Acanthochromis polyacanthus . Juveniles from parents in good condition were longer and heavier at hatching than juveniles from parents in poor condition. Parental effects on juvenile size were evident up to 29 days post-hatching, but disappeared by 50 da

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Khan, Altamash, Javid A. Abro, Sher Ahmed, et al. "Influence of low temperature on juvenile development, adult emergence and parasitism of trichogramma chilonis in captivity." International Journal of Agricultural Extension 12, no. 2 (2024): 195–202. https://doi.org/10.33687/ijae.012.002.5200.

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The study was conducted in mass-rearing laboratories of beneficial insects at the Nuclear Institute of Agriculture Tandojam, to determine the optimum storage temperature of parasitoid Trichogramma chilonis after parasitization on Sitotroga cerealella eggs. Two hundred host eggs were pasted on white paper card strips with Vachellia nilotica tree gum, and these card strips were offered to parasitoid T. chilonis adults confined in glass jars. Honey solution (10%) on paper strips was provided to parasitoids as an adult diet inside the glass vessels. For parasitization, the host eggs on the strip,

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Fodor, András, Maxime Gualtieri, Matthias Zeller, et al. "Type Strains of Entomopathogenic Nematode-Symbiotic Bacterium Species, Xenorhabdus szentirmaii (EMC) and X. budapestensis (EMA), Are Exceptional Sources of Non-Ribosomal Templated, Large-Target-Spectral, Thermotolerant-Antimicrobial Peptides (by Both), and Iodinin (by EMC)." Pathogens 11, no. 3 (2022): 342. http://dx.doi.org/10.3390/pathogens11030342.

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Antimicrobial multidrug resistance (MDR) is a global challenge, not only for public health, but also for sustainable agriculture. Antibiotics used in humans should be ruled out for use in veterinary or agricultural settings. Applying antimicrobial peptide (AMP) molecules, produced by soil-born organisms for protecting (soil-born) plants, seems a preferable alternative. The natural role of peptide-antimicrobials, produced by the prokaryotic partner of entomopathogenic-nematode/bacterium (EPN/EPB) symbiotic associations, is to sustain monoxenic conditions for the EPB in the gut of the semi-anabi

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Béda Nestor KIMOU, Sonan Romuald ASSI, Awa TRAORÉ, and Boua Célestin ATSE. "Effect of the combination of two types of fish feed with nutritional quality on the performance of two species of fish raised on rural and peri-urban farms in Cote D'ivoire." World Journal of Advanced Research and Reviews 24, no. 1 (2024): 641–47. http://dx.doi.org/10.30574/wjarr.2024.24.1.3000.

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For 160 days, juvenile Oreochromis niloticus and Heterobranchus longifilis were in ponds on a farm in San Perdo located in the southwest of Côte d’Ivoire.The juveniles grouped in four lot per species and in triplicate were fed in pairs of industrial feed and feed produced on the farm and an agri-feed by-product from four feeding techniques (Batch 1: juveniles fed with an industrial lime in the pre-growing phase followed by an agricultural by-product in the growing phase. Batch 2: Juveniles fed with an industrial feed then a feed formulated with an agricultural product during the growing phase

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Spaan, Robert S., Clinton W. Epps, Rachel Crowhurst, Donald Whittaker, Mike Cox, and Adam Duarte. "Impact of Mycoplasma ovipneumoniae on juvenile bighorn sheep (Ovis canadensis) survival in the northern Basin and Range ecosystem." PeerJ 9 (January 19, 2021): e10710. http://dx.doi.org/10.7717/peerj.10710.

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Determining the demographic impacts of wildlife disease is complex because extrinsic and intrinsic drivers of survival, reproduction, body condition, and other factors that may interact with disease vary widely. Mycoplasma ovipneumoniae infection has been linked to persistent mortality in juvenile bighorn sheep (Ovis canadensis), although mortality appears to vary widely across subspecies, populations, and outbreaks. Hypotheses for that variation range from interactions with nutrition, population density, genetic variation in the pathogen, genetic variation in the host, and other factors. We i

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Strauss, Eli D., Daizaburo Shizuka, and Kay E. Holekamp. "Juvenile rank acquisition is associated with fitness independent of adult rank." Proceedings of the Royal Society B: Biological Sciences 287, no. 1922 (2020): 20192969. http://dx.doi.org/10.1098/rspb.2019.2969.

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Social rank is a significant determinant of fitness in a variety of species. The importance of social rank suggests that the process by which juveniles come to establish their position in the social hierarchy is a critical component of development. Here, we use the highly predictable process of rank acquisition in spotted hyenas to study the consequences of variation in rank acquisition in early life. In spotted hyenas, rank is ‘inherited’ through a learning process called ‘maternal rank inheritance.’ This pattern is very consistent: approximately 80% of juveniles acquire the exact rank expect

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Béda, Nestor KIMOU, Romuald ASSI Sonan, TRAORÉ Awa, and Célestin ATSE Boua. "Effect of the combination of two types of fish feed with nutritional quality on the performance of two species of fish raised on rural and peri-urban farms in Cote D'ivoire." World Journal of Advanced Research and Reviews 24, no. 1 (2024): 641–47. https://doi.org/10.5281/zenodo.15010666.

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For 160 days, juvenile <em>Oreochromis niloticus and Heterobranchus longifilis</em> were in ponds on a farm in San Perdo located in the southwest of Côte d’Ivoire.The juveniles grouped in four lot per species and in triplicate were fed in pairs of industrial feed and feed produced on the farm and an agri-feed by-product from four feeding techniques (Batch 1: juveniles fed with an industrial lime in the pre-growing phase followed by an agricultural by-product in the growing phase. Batch 2: Juveniles fed with an industrial feed then a feed formulated with an agricultural product

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Sarker, J., and MAR Faruk. "Experimental infection of Aeromonas hydrophila in pangasius." Progressive Agriculture 27, no. 3 (2016): 392–99. http://dx.doi.org/10.3329/pa.v27i3.30836.

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Experimental infections of Aeromonas hydrophila in juvenile pangasius (Pangasianodon hypophthalmus) were studied. Five different challenge routes included intraperitoneal (IP) injection, intramuscular (IM) injection, oral administration, bath and agar implantation were used with different preparations of the bacteria to infect fish. The challenge experiments were continued for 15 days. A challenge dose of 4.6×106 colony forming unit (cfu) fish-1 was used for IP and IM injection and oral administration method. Generally, IP route was found more effective for infecting and reproducing clinical s

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Kroon, Frederieke J., and Dean H. Ansell. "A comparison of species assemblages between drainage systems with and without floodgates: implications for coastal floodplain management." Canadian Journal of Fisheries and Aquatic Sciences 63, no. 11 (2006): 2400–2417. http://dx.doi.org/10.1139/f06-134.

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Coastal floodplains provide essential nursery habitat for a large number of fish and prawn species, many of which are commercially and recreationally important. Human activities in coastal floodplains, such as those associated with agriculture and (or) development, can have detrimental impacts on this nursery function. We examined the potential role of flood mitigation structures, in particular tidal floodgates, in depleting estuarine and inshore fisheries stocks in eastern Australia. We compared species assemblages (abundance and biomass) in reference and gated drainage systems in the Clarenc

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