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Articles de revues sur le sujet « Beneficial birds »

Auteur : Grafiati

Publié le 4 juin 2021

Mis à jour le 27 juillet 2025

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1

Sugden, A. M. "ECOLOGY/EVOLUTION: Beneficial Birds and Bees." Science 298, no. 5602 (2002): 2285a—2285. http://dx.doi.org/10.1126/science.298.5602.2285a.

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Koleček, Jaroslav, Steffen Hahn, Tamara Emmenegger, and Petr Procházka. "Intra-tropical movements as a beneficial strategy for Palearctic migratory birds." Royal Society Open Science 5, no. 1 (2018): 171675. http://dx.doi.org/10.1098/rsos.171675.

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Migratory birds often move significantly within their non-breeding range before returning to breed. It remains unresolved under which circumstances individuals relocate, whether movement patterns are consistent between populations and to what degree the individuals benefit from the intra-tropical movement (ITM). We tracked adult great reed warblers Acrocephalus arundinaceus from a central and a southeastern European breeding population, which either stay at a single non-breeding site, or show ITM, i.e. move to a second site. We related ITM to the normalized difference vegetation index (NDVI) d

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Koleček, Jaroslav, Steffen Hahn, Tamara Emmenegger, and Petr Procházka. "Intra-tropical movements as a beneficial strategy for Palearctic migratory birds." Royal Society Open Science 5 (January 3, 2018): 171675. https://doi.org/10.5281/zenodo.3906058.

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<strong>Abstract</strong> Migratory birds often move significantly within their non-breeding range before returning to breed. It remains unresolved under which circumstances individuals relocate, whether movement patterns are consistent between populations and to what degree the individuals benefit from the intra-tropical movement (ITM). We tracked adult great reed warblers <em>Acrocephalus arundinaceus</em> from a central and a southeastern European breeding population, which either stay at a single non-breeding site, or show ITM, i.e. move to a second site. We related ITM to the no

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Nwonye, Charles A., K. Akpado, and D. O. Amaefule. "Development of a Specie-specific Bird Deterrent System using Birds Classifications by Convolutional Neural Network (CNN) Model." International Journal of Engineering Research & Science (IJOER) 10, no. 5 (2024): 07–18. https://doi.org/10.5281/zenodo.11452990.

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<strong><em>Abstract</em></strong><strong>—</strong> <em>A trained convolutional neural network (CNN) model was developed in this work for classification of birds that visit rice farms into harmful Sparrows or beneficial insectivorous birds, and the classification used in activating efficient pest bird deterrence. Different images of the prevalent pest sparrow were captured by high resolution camera, and used as datasets for the training of the CNN model for the pest bird identification. Since, 98% of sparrow birds are grain eaters and harmful to a rice farm, 2,000 images of different sp

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Islam, MR, M. Mostofa, KS Mondal, RR Roy, MG Sorwar, and S. Islam. "Effect of Probiotic on Beneficial and Pathogenic Microorganisms in the Gastrointestinal Tract of Commercial Broiler with BCRDV Vaccine." Progressive Agriculture 24, no. 1-2 (2014): 107–15. http://dx.doi.org/10.3329/pa.v24i1-2.19111.

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The present study was conducted to determine the effect of probiotic on beneficial and pathogenic microorganisms in the gastrointestinal tract of Commercial Broiler. A total of 80 day-old broiler chicks were divided into two main groups I and II with 40 chicks in each. Group I was supplemented with Probiotic (Saccharomyces cerevisiae 2 gm/kg feed) containing feed and chicks of group II was supplemented with conventional feed. Group I and II was again subdivided into two subgroups as group A, B and C, D respectively on 6 days of age. Birds of subgroups A and C were vaccinated with ND vaccine (B

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Hassanzadeh, M., M. H. Bozorgmehri Fard, J. Buyse, and E. Decuypere. "Beneficial effects of alternative lighting schedules on the incidence of ascites and on metabolic parameters of broiler chickens." Acta Veterinaria Hungarica 51, no. 4 (2003): 513–20. http://dx.doi.org/10.1556/avet.51.2003.4.9.

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The beneficial effects of different lighting programmes on the incidence of ascites was investigated in an experiment with 360 three-day-old male broiler chickens. At 3 days of age, chicks were randomly divided over three rooms in a high-altitude farm, 2000 m above sea level. During days 14 to 28 ambient temperature decreased during the night but the minimum temperature did not descend below 15°C. In the first room the continuous lighting schedule (CL, 23L:1D) was maintained and in the second room an intermittent lighting schedule (IL, 1L:3D), repeated six times daily, was imposed from 3 days

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Bhagwat, Vishwanath Gopal, Ellusamy Balamurugan, and Paramesh Rangesh. "Cocktail of chelated minerals and phytogenic feed additives in the poultry industry: A review." Veterinary World 14, no. 2 (2021): 364–71. http://dx.doi.org/10.14202/vetworld.2021.364-371.

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This review article delineates the role of chelated minerals and phytogenic feed additives (PFAs) cocktail supplementation in improving the overall health status and production performance of poultry birds and its economic effects in the poultry industry. Organically complexed minerals have many advantages over inorganic sources. It has improved absorption and efficacy, which meets the bird's requirements comfortably with a low-dose level. Hence, inorganic forms can be replaced with lower-dose levels of organic minerals without any adverse effects on production performances in broilers and lay

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Kross, Sara M., Katherine P. Ingram, Rachael F. Long, and Meredith T. Niles. "Farmer Perceptions and Behaviors Related to Wildlife and On‐Farm Conservation Actions." Conservation Letters 11, no. 1 (2018): e12364. https://doi.org/10.5281/zenodo.14822134.

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(Uploaded by Plazi for the Bat Literature Project) Policy makers are increasingly encouraging farmers to protect or enhance habitat on their farms for wildlife conservation. However, a lack of knowledge of farmers' opinions toward wildlife can lead to poor integration of conservation measures. We surveyed farmers to assess their perceptions of ecosystem services and disservices from perching birds, raptors, and bats—three taxa commonly targeted by conservation measures. The majority of farmers thought that perching birds and bats were beneficial for insect pest control and that raptors were be

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Ząbek, Katarzyna, Dominika Szkopek, Monika Michalczuk, and Paweł Konieczka. "Dietary Phytogenic Combination with Hops and a Mixture of a Free Butyrate Acidifier and Gluconic Acid Maintaining the Health Status of the Gut and Performance in Chickens." Animals 10, no. 8 (2020): 1335. http://dx.doi.org/10.3390/ani10081335.

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Additives with bioactive properties can improve chickens’ gut health. This study investigated the physiological status of the gut, including its morphological structure and microbiome activities in chickens fed diets supplemented with phytogenic ingredients with hops (Anta®Phyt) or a mixture of a free butyrate acidifier and gluconic acid (PreAcid). In this study, 1155 broilers were distributed to three dietary treatments with 5 replicate pens per treatment, 77 birds each. Anta®Phyt was added at 400/300/200/200 mg/kg diet whereas PreAcid was added at 3/2/1/1 g/kg starter/grower I/grower II/fini

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Grémillet, David, Lorien Pichegru, Grégoire Kuntz, et al. "A junk-food hypothesis for gannets feeding on fishery waste." Proceedings of the Royal Society B: Biological Sciences 275, no. 1639 (2008): 1149–56. http://dx.doi.org/10.1098/rspb.2007.1763.

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Worldwide fisheries generate large volumes of fishery waste and it is often assumed that this additional food is beneficial to populations of marine top-predators. We challenge this concept via a detailed study of foraging Cape gannets Morus capensis and of their feeding environment in the Benguela upwelling zone. The natural prey of Cape gannets (pelagic fishes) is depleted and birds now feed extensively on fishery wastes. These are beneficial to non-breeding birds, which show reduced feeding effort and high survival. By contrast, breeding gannets double their diving effort in an attempt to p

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Owen, O.J., M.B. Nodu, U.A. Dike, and H.M. Ideozu. "The Effects of Dietary Kaolin (Clay) as Feed Additive on the Growth Performance of Broiler Chickens." Greener Journal of Agricultural Sciences 2, no. 6 (2012): 237–45. https://doi.org/10.5281/zenodo.3373393.

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Investigation was carried out to elucidate the effects of dietary kaolin (clay) as feed additive on the growth parameters of broiler chickens. One hundred and twenty (120) day-old Hubbard broiler chickens with mean initial weight of 60g were used in a completely Randomized design (CRD) for 56days. The birds were randomly assigned to 4 treatments consisting of 30 birds/treatment and 10 birds/replicate. The 4 Treatments were: basal diet only (control), basal diet + 10g kaolin/kg, basal diet + 20g kaolin/kg and basal diet + 30g/kg kaolin. Results obtained revealed that incorporating kaolin into b

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Syahputra, Afrizal El Adzim, and Abdur Rohman. "Karakteristik Burung dalam Perspektif Al-Qur’an dan Sains." Kaunia: Integration and Interconnection Islam and Science Journal 18, no. 2 (2023): 63–72. http://dx.doi.org/10.14421/kaunia.3756.

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Birds are the animals most frequently mentioned in the Qur’an. However, the birds in the Qur’an have never been studied using a comprehensive scientific approach. This research is expected to be able to add insight and knowledge to Indonesian scholars about the integration of the theme of birds in the Qur’an and science. This study uses a thematic method based on library research by tracing verses about birds in the Qur’an. These verses are then studied using the method of scientific exegesis in which the sources are contemporary commentary books. Then these verses can be integrated with scien

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Abosede, Aderibigbe, Opowoye Omolola, Atteh Olutimehin, and Okukpe Matthias. "Prebiotic potential of xylanase enzyme supplemented wheat offal in broiler chickens." Journal of Agricultural Sciences, Belgrade 62, no. 3 (2017): 265–85. http://dx.doi.org/10.2298/jas1703265a.

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The recent development of antibiotics-resistant pathogens in poultry, which poses a threat to human health, has necessitated the search for an alternative to antibiotic growth promoters (AGPs) to improve the gut microflora in poultry diets. One of the alternatives to AGPs is probiotics which are beneficial organisms. The by-products of the digestion of polysaccharides for which poultry do not have enzymes to digest are called prebiotics. Prebiotics serve as food for probiotics. The application of enzymes makes this digestion possible. The prebiotic potentials of enzyme supplemented high fibre

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Nagari, Moshe, and Motti Charter. "Comparing Insect Predation by Birds and Insects in an Apple Orchard and Neighboring Unmanaged Habitat: Implications for Ecosystem Services." Animals 13, no. 11 (2023): 1785. http://dx.doi.org/10.3390/ani13111785.

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Preserving ecosystem services, such as natural enemies that can provide pest control, can positively impact crops without compromising agricultural yield. Even though controlling pests by natural enemies has been suggested to reduce pests in agriculture, growers continue using conventional pesticides that kill beneficial predators. Here we studied whether the predation of avian and insect-beneficial predators varies in an apple orchard with conventional insecticide use compared to a bordering tree stand without insecticides. We studied the predation rates of mealworm pupae as a proxy to coddli

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Fishel, Frederick M. "Avicides." EDIS 2019, no. 5 (2019): 2. http://dx.doi.org/10.32473/edis-pi281-2019.

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By and large, birds are beneficial because they provide enjoyment and recreation to humans and are vital to ecosystem balance. However, occasionally some species can compete with human interests. When these situations occur, some forms of control may become necessary. Avicides are pesticides designed to kill or repel pest birds. This new 2-page document addresses those avicides currently registered for use in Florida. Written by Frederick M. Fishel and published by the UF/IFAS Pesticide Information Office. https://edis.ifas.ufl.edu/pi281

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Namma, V. Lakshmi Naraya, and V. Vasudeva Rao. "Exploitation of beneficial birds against major insect pests of castor Ricinus communis l." Indian Journal of Entomology 82, no. 1 (2020): 29. http://dx.doi.org/10.5958/0974-8172.2020.00006.1.

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Decaux, Caroline, Luigi Pomponi, and Carl Julien. "PSVIII-3 Beneficial effect of cashew nutshell liquid-based supplements in vaccinated broilers against coccidiosis." Journal of Animal Science 98, Supplement_4 (2020): 254. http://dx.doi.org/10.1093/jas/skaa278.458.

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Abstract Vaccination has been developed over the years to counter coccidiosis; however, its effectiveness varies, and it is difficult to exploit due in particular to the young age of chickens at slaughter. Cashew nutsell liquid (CNSL) supplements have shown beneficial effects on growth performance and anticoccidial effects in Eimeria-challenged broilers. However, CNSL effects during an Eimeria infection in vaccinated chickens against coccidiosis need to be determined especially for organic production. Broilers vaccinated against coccidiosis were housed in pens and received one of the following

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Rawal, Deepak. "A report on various beneficial roles of insects." International Journal of Entomology Research 5, no. 1 (2020): 15–17. https://doi.org/10.5281/zenodo.7598361.

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It is estimated that out of approximately one million recorded insect species, less than 1000 species are actually pests which transmit diseases and damage crops. They are important part of food chains of many invertebrates, birds, reptiles, amphibians, fishes and even mammals. They are also important in survival of insect pollinated flowering plants. Insects plays variety of roles in nature like pollinators, predators of pests, parasitoids of pests, weed killers, scavengers, decomposers, soil builders, food provider etc. insect are also useful in medicines and have aesthetic as well as scient

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Chandrashekhar, R. Kasar. "The Role Of Birds In Sustainable Agriculture An Observation." International Journal of Advance and Applied Research S6, no. 18 (2025): 92–95. https://doi.org/10.5281/zenodo.15254838.

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<em>Birds play a vital role in sustainable agriculture, contributing to ecosystem services that benefit farmers and the environment. Here are some ways birds support sustainable agriculture, <strong>Ecological Benefits</strong>:-1. Pest control: Birds feed on insects, rodents, and other pests that damage crops, reducing the need for pesticides.2. Pollination: Some bird species, like hummingbirds, transfer pollen between flowers, contributing to plant reproduction.3. Seed dispersal: Birds help spread seeds, promoting the growth of new plants and maintaining ecosystem diversity.4. Ecosystem engi

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Diep, Tram N., Haoxin Liu, and Liang-Jun Yan. "Beneficial Effects of Butyrate on Kidney Disease." Nutrients 17, no. 5 (2025): 772. https://doi.org/10.3390/nu17050772.

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The gut microbiota influences and contributes to kidney health and disease. Butyrate, a short-chain fatty acid molecule generated via the fermentation of gut bacterial catabolism of nondigestible dietary fiber, has been shown to exert numerous beneficial effects on kidney disorders. The objective of this review was to discuss the latest findings on the protective effects of butyrate on a variety of animal models of kidney injury. We conducted a PubMed search using the title word “butyrate” and keyword “kidney” to generate our literature review sources. The animal models covered in this review

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Pa’ee, Furzani, Nur Faizah Azzahra Mohd Saien, Nor Atiqah Norazlimi, and Hairul Azhar Sulaiman. "Nutritional content of Ficus benjamina fruits consumed by Frugivorous birds in Taman Botani Johor." BIO Web of Conferences 94 (2024): 02003. http://dx.doi.org/10.1051/bioconf/20249402003.

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Ficus benjamina is a common tree in Taman Botani Johor and a food source for many frugivorous birds. This study investigated the nutrient content of F. benjamina fruits by analyzing the fruits of 7 species of birds that were observed safely feeding on the tree. The fruits were collected and analyzed for their nutrient content using a standard method for nutritional composition determination. The results showed that the fruits have a high carbohydrate content (19.7%), a low fat content (0.6%), and a moderate protein content (1.5%). The fruits also have a high moisture content (76.7%) and a low

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Noguera, José C., Manuel Aira, Marcos Pérez-Losada, Jorge Domínguez, and Alberto Velando. "Glucocorticoids modulate gastrointestinal microbiome in a wild bird." Royal Society Open Science 5, no. 4 (2018): 171743. http://dx.doi.org/10.1098/rsos.171743.

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It has recently been hypothesized that stress exposure (e.g. via glucocorticoid secretion) may dysregulate the bacterial gut microbiome, a crucial ‘organ' in animal health. However, whether stress exposure (e.g. via glucocorticoid secretion) affects the bacterial gut microbiome of natural populations is unknown. We have experimentally altered the basal glucocorticoid level (corticosterone implants) in a wild avian species, the yellow-legged gull Larus michahellis , to assess its effects on the gastrointestinal microbiota. Our results suggest underrepresentation of several microbial taxa in the

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Jadhav, Kirtikumar, Devasi Solanki, and Shashikant Jadhav. "Trichomoniasis in kites in Gujarat state." Indian Journal of Veterinary Medicine 44, no. 1 (2024): 12–14. http://dx.doi.org/10.56093/ijvm.v44i1.151440.

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Trichomoniasis, caused by Trichomonas gallinae is a significant parasitic disease affecting kites and other birds. The study investigated its prevalence, mortality, and therapeutic efficacy of metronidazole. Among 897 kites studied during 2021, 51.01% were positive for trichomoniasis. Gross lesions consisted of nodules or abscesses in the oesophagus and pharynx. Histopathological findings revealed epithelial and submucosal ulceration with inflammatory cell infiltration. Mortality increased with severity in lesions. The study highlights the high prevalence of trichomoniasis in kites. Treatment

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Carfagno, Gerardo L. F., and Patrick J. Weatherhead. "Intraspecific and interspecific variation in use of forest-edge habitat by snakes." Canadian Journal of Zoology 84, no. 10 (2006): 1440–52. http://dx.doi.org/10.1139/z06-124.

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Variation in use of edge habitat among populations and species of snakes should reflect underlying causes (e.g., thermal ecology, prey availability) and consequences (e.g., predation on birds' nests) of habitat selection. We compared the habitat use of ratsnakes, Elaphe obsoleta (Say in James, 1823), in Illinois and Ontario and compared habitat use by ratsnakes and racers, Coluber constrictor (L., 1758), in Illinois. Ratsnakes in Illinois used upland forest more and forest edges less than ratsnakes in Ontario. Female ratsnakes in Illinois used edges less than males, regardless of their reprodu

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Mohammed, Zahid I., Kadhim S. Kadhim, and Maisaa G. Taher. "Effects of feeding different levels of ocimum basilicum seeds on per-formance and immune traits of broiler." Journal of Kerbala for Agricultural Sciences 4, no. 5 (2017): 249–58. http://dx.doi.org/10.59658/jkas.v4i5.709.

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This study was conducted to evaluate the effect of Ocimum Basilicum seeds supplementation of a commercial broiler diet on the performance and immune response. Three dietary treatments(100 birds/treatment) with two replicates (50 birds/ replicate) one day old straight run Ross 308 . T1 (as control group) birds fed basal diet without any additives. While, T2 and T3 fed diet supplemented daily with 0.3 and 0.6% basil seeds respectively to the end of the experiment (42 days) to investigate the broiler performance and antibody titer against Newcastle disease virus (NDV) and infectious bronchitis (I

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Abramowicz, Katarzyna, Magdalena Krauze, and Katarzyna Ognik. "Use of Bacillus subtilis PB6 enriched with choline to improve growth performance, immune status, histological parameters and intestinal microbiota of broiler chickens." Animal Production Science 60, no. 5 (2020): 625. http://dx.doi.org/10.1071/an18737.

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Context Probiotics used in poultry nutrition may promote the propagation of beneficial bacteria and limit the growth of pathogens, improving the body’s resistance to disease. Aims The aim of the study was to establish the dose and timing of administration of a probiotic preparation containing live cultures of Bacillus subtilis PB6 and choline that would have the most beneficial effect on histological parameters and microbiological status of the intestine, immune status, and growth performance of broiler chickens. Methods In total, 980 one-day-old Ross 308 male chickens, divided into seven grou

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Kutlu, H. R., and J. M. Forbes. "Ascorbic acid: a limiting nutrient affecting performance and physiological response of broiler chicks under heat stress." Proceedings of the British Society of Animal Production (1972) 1992 (March 1992): 82. http://dx.doi.org/10.1017/s0308229600021954.

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Birds are normally able to synthesize adequate amounts of ascorbic acid (AA). However, there are many indications that under stress they cannot produce enough AA for their metabolic needs. In particular, heat stress has been implicated in increasing birds’ demand for AA (Scott, 1975; Sykes, 1978; Coates, 1984). These reports suggest that conditions may exist in which endogenous AA synthesis of birds is not adequate to meet the physiological needs for optimum performance and that during such conditions exogenous supplementation with AA could be beneficial. This study was conducted to determine

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M. U., Onyekwere, Jiwuba P. C., Okechukwu S. O., and Anuonye A. C. "Growth and serum mineral profile of broiler starter fed dried cocoyam tuber (colocasia esculenta) meal." International Journal of Biological Research 4, no. 2 (2016): 260. http://dx.doi.org/10.14419/ijbr.v4i2.6695.

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A 30-day experiment was conducted with 240 unsexed broiler starters to determine the effect of cocoyam tuber meal on growth and serum mineral profile. Four diets were formulated at 0%, 10%, 20% and 30% of cocoyam tuber meal. The birds were assigned the four treatment diets in a completely randomized design and replicated 3 times with 20 birds per replicate. Feed and water were supplied ad-libitum. Data were collected on average daily feed intake, average daily weight gain, feed conversion ratio and blood was sampled from each treatment group, data obtained were analysed statistically. The perf

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Abioja, Monsuru Oladimeji, Stephen Apuu, James Olamitibo Daramola, Mathew Wheto, and Obafemi Foluso Akinjute. "Semen quality and sperm characteristics in broiler breeder cockerels fed vitamin E during hot season." Acta Scientiarum. Animal Sciences 45 (September 13, 2022): e56848. http://dx.doi.org/10.4025/actascianimsci.v44i1.56848.

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Thirty-two Arbor Acres (AA) cockerels aged 27 weeks were used to determine the effect of vitamin E (VE) on the semen characteristics and sperm quality during hot season. The birds were fed diets containing 0, 50, 100 and 150mg VE kg-1 feed. There were 4 replicates and two birds per replicate. Semen collection was done thrice a week for three weeks in all birds. Dietary vitamin E significantly (p < 0.05) increased the semen volume (SV) and number of sperm cells (NS) in AA cockerels. CONTROL birds (0.71 mL) had lower SV than birds fed 150 mg VE (0.94 mL). Birds on 100 and 150 mg VE recorded s

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Jacobs, Leonie, Shawnna Melick, Nathan Freeman, An Garmyn, and Frank A. M. Tuyttens. "Broiler Chicken Behavior and Activity Are Affected by Novel Flooring Treatments." Animals 11, no. 10 (2021): 2841. http://dx.doi.org/10.3390/ani11102841.

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The objective was to determine broiler chicken behavioral differences in response to novel flooring treatments. Broilers (n = 182) were housed in 14 pens (a random subset from a larger-scale study including 42 pens), with 13 birds/pen. One of seven flooring treatments were randomly allocated to 14 pens (2 pens per treatment). The flooring treatments (provided from day 1 {1} or day 29 {29}) included regularly replaced shavings (POS), a mat with 1% povidone-iodine solution (MAT), and the iodine mat placed on a partially slatted floor (SLAT). In addition, a negative control treatment was included

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Bortoluzzi, Cristiano, Bruno Serpa Vieira, Juliano Cesar de Paula Dorigam, et al. "Bacillus subtilis DSM 32315 Supplementation Attenuates the Effects of Clostridium perfringens Challenge on the Growth Performance and Intestinal Microbiota of Broiler Chickens." Microorganisms 7, no. 3 (2019): 71. http://dx.doi.org/10.3390/microorganisms7030071.

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The objective of this study was to evaluate the effects of the dietary supplementation of Bacillus subtilis DSM 32315 (probiotic) on the performance and intestinal microbiota of broiler chickens infected with Clostridium perfringens (CP). One-day-old broiler chickens were assigned to 3 treatments with 8 replicate pens (50 birds/pen). The treatments were: non-infected control; infected control; and infected supplemented with probiotic (1 × 106 CFU/g of feed). On day of hatch, all birds were sprayed with a coccidia vaccine based on the manufacturer recommended dosage. On d 18–20 the infected bir

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Pam, Grace Alheri-Bulus, David Zeitlyn, and Andrew Gosler. "Ethno-Ornithology of the Mushere of Nigeria: Children's Knowledge and Perceptions of Birds." Ethnobiology Letters 9, no. 2 (2018): 48–64. http://dx.doi.org/10.14237/ebl.9.2.2018.931.

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Mushere children’s ethno-ornithology was surveyed from October to November 2015 to find out their level of bird knowledge—as well as whether and how children valued and learned about birds—in order to determine the potential role such knowledge might play in Mushere biodiversity conservation. Methods included picture elicitation exercises, free-listing, and semi-structured interviews. Our results revealed a limited knowledge of birds in Mushere children, and that bird knowledge was gendered. Girls learned through observation, while boys learned through practical bird-related activities. Learni

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Dobson, Joanna C. "‘A Menace to England’: The Egg Collector as Arch-Villain in Two 1940s Bird Novels." Literature & History 30, no. 2 (2021): 121–37. http://dx.doi.org/10.1177/03061973211041256.

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This paper examines the figure of the egg collector as an arch-villain in two novels about rare birds that were published in the 1940s: Adventure Lit Their Star by Kenneth Allsop, and The Awl Birds by J.K. Stanford. Drawing on insights from birdwatching literature published in the same period, I demonstrate that the extreme vilification of the egg collector in both texts represents a dramatic change in attitude towards a pastime that was previously considered beneficial for both adults and children. This about-face, I suggest, can be explained by reading the desperate rush to protect the birds

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Jongman, Ellen C. "Rearing conditions of laying hens and welfare during the laying phase." Animal Production Science 61, no. 10 (2021): 876. http://dx.doi.org/10.1071/an20236.

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Conditions during rearing have a large influence on the development of behaviour of the laying hen. The early influence starts even before hatching and the first 2 weeks of life appear to be particularly sensitive for the development of future behaviour. It is recommended that birds are reared in an environment similar to where they are housed during the laying phase. Birds that are destined for multi-tier barns and aviaries benefit from navigating three-dimensional space early in life. There are additional benefits for bone and muscle strength for birds in this environment that may be benefic

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Nazir, Jahanzeb. "Different Dietary Levels of Lysine have Beneficial Effects on Intestinal Morphology in Japanese Quail (Coturnix Coturnix Japonica)." Pakistan Veterinary Journal 42, no. 04 (2022): 475–80. http://dx.doi.org/10.29261/pakvetj/2022.028.

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This study was designed to check the dietary effect of different levels of lysine on intestinal morphology, cecal tonsils and goblet cell count in Japanese Quails. For this Purpose, a total of 100, day old chicks were randomly divided in four groups. These groups were further sub-divided into five replicas per group, each replica having five birds. NRC has recommended 13g/kg of lysine in basal diet in 1994. The birds of control group (first) were fed with basal diet containing 13 g/kg of lysine, second experimental groups fed contained lysine at the rate of 11.7g/kg of lysine, third group 13.6

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Parmar, Bhavdip B., Krina M. Patel, Kamlesh A. Sadariya, and Shailesh K. Bhavsar. "Evaluation of Immunomodulatory Activities of Clove Powder in Broiler." Journal of Phytopharmacology 13, no. 3 (2024): 242–48. http://dx.doi.org/10.31254/phyto.2024.13308.

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The study was planned to evaluate the immunomodulatory effects of clove bud powder in broiler. Total of 60 chicks were divided randomly to 5 groups. Group I served as control and given only basal diet. Group II served as standard control and given basal diet with vitamin E and selenium containing proprietary product in water. Groups III, IV and V were given clove powder at the dose rate of 2.5, 5 and 10 g/kg feed for 35 days, respectively. Cutaneous basophil hypersensitivity (CBH) response was carried out to assess the cell mediated immunity on 14th day of age. Blood was collected on 7th, 21st

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Szmigiel, Ida, Damian Konkol, Mariusz Korczyński, Marcin Łukaszewicz, and Anna Krasowska. "Changes in the Microbial Composition of the Cecum and Histomorphometric Analysis of Its Epithelium in Broilers Fed with Feed Mixture Containing Fermented Rapeseed Meal." Microorganisms 9, no. 2 (2021): 360. http://dx.doi.org/10.3390/microorganisms9020360.

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This study examined the influence of fermented rapeseed meal (FRSM) on the intestinal morphology and gut microflora of broiler chickens. Limited information is available on the effects of FRSM on the intestinal morphology and the gastrointestinal microbiome population of animals. First, 48 21-day Ross 308 broilers were placed in metabolic cages and randomly assigned to four experimental groups. Group I birds were negative controls and received no additive. Group II birds were positive controls and received a 3% addition of unfermented rapeseed meal. Group III birds received a 3% addition of ra

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Schiffner, Ingo, and Mandyam V. Srinivasan. "Budgerigar flight in a varying environment: flight at distinct speeds?" Biology Letters 12, no. 6 (2016): 20160221. http://dx.doi.org/10.1098/rsbl.2016.0221.

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How do flying birds respond to changing environments? The behaviour of budgerigars, Melopsittacus undulatus , was filmed as they flew through a tapered tunnel. Unlike flying insects—which vary their speed progressively and continuously by holding constant the optic flow induced by the walls—the birds showed a tendency to fly at only two distinct, fixed speeds. They switched between a high speed in the wider section of the tunnel, and a low speed in the narrower section. The transition between the two speeds was abrupt, and anticipatory. The high speed was close to the energy-efficient, outdoor

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Sugiharto, Sugiharto, Turrini Yudiarti, Isroli Isroli, Endang Widiastuti, and Endang Kusumanti. "Dietary supplementation of probiotics in poultry exposed to heat stress – a review." Annals of Animal Science 17, no. 3 (2017): 591–604. http://dx.doi.org/10.1515/aoas-2016-0062.

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Abstract Heat-related stress has become a serious problem in poultry industry along with the global temperatures rise. Heat stress causes detrimental effects on physiology, immunology and microbiology resulting in abnormalities and impaired performances of birds. Several nutritional strategies have been conducted to counteract the detrimental effects of heat stress in poultry, including dietary supplementation of probiotics. This strategy has been proposed to ameliorate the intestinal ecosystem, physiological conditions and immune system, leading to the improved performance and health of birds

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Hala, M. Arram, H. Abdel A. Mohammed, al, et al. "The Effect of Azolla Feeding on Immunological Traits, Gut Microbiota and Gene Expression of Broiler Chicks." Pharmaceutical and Chemical Journal 10, no. 4 (2023): 88–102. https://doi.org/10.5281/zenodo.13997450.

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The target of present research was to determine how different doses of Azolla and probiotics affect cecal in intestinal microbiota, gene expression and immune competence traits of Indian River (IR) chicks. The study on 300 IR chicks, which was randomly divided into ten groups each with three replicates of 10 birds. The first (T1) were fed diet without Azolla while, Azolla 5% (T2), 10% (T3), 15% (T4), 20% (T5), however birds in group (T6) fed diet without Azolla and drink water with 10<sup>8</sup><em> Enterococcus faecalis</em>, Azolla 5% with 10<sup>8 </sup><em>Ent </em>(T7), 10% with10<sup>8<

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Fathi, Mokhtar, Mohammad Heidari, Ali Asghar Ahmadisefat, Mahmood Habibian, and Mohammad Mehdi Moeini. "Influence of dietary glutamine supplementation on performance, biochemical indices and enzyme activities in broilers with cold-induced ascites." Animal Production Science 56, no. 12 (2016): 2047. http://dx.doi.org/10.1071/an15300.

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This study was conducted to investigate the effects of dietary glutamine supplementation on performance and biochemical indices of broilers with cold-induced ascites. A total of 240 1-day-old male broiler chicks (Ross 308) were randomly allotted to three treatment groups, with four replicate pens per treatment and 20 birds per pen. The control birds were kept in a thermoneutral chamber and fed a basal diet, whereas the other two experimental groups were kept in a cold chamber to induce ascites and fed the basal diet supplemented with either 0 or 100 mg of glutamine/kg. The cold-treated birds c

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Javaid, Aqsa, Farhan Younas, Ikram Ullah, and Masoom Yasinzai. "Impact of an indigenously produced multi-enzyme complex from Bacillus subtilis KT004404 on growth and blood parameters in broiler chicken." PLOS ONE 17, no. 7 (2022): e0271445. http://dx.doi.org/10.1371/journal.pone.0271445.

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A 42-days experiment was conducted on a day old birds (n = 400) to evaluate the effect of enzyme supplements in feed on the growth, blood parameters, phosphorous content in bones, and nitrogen retention. Different treatments included: control (C) without enzyme supplement, while the other three groups included enzyme mixture T1 and T2 with two commercially available enzyme mix, and T3 with indigenously produced multi-enzyme complex from Bacillus subtilis KT004404. Birds that were fed with indigenously produced multi-enzyme complex showed significant weight gain as compared to other groups. The

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Peggie, Carly T., Claudia M. Garratt, and Mark J. Whittingham. "Creating ephemeral resources: how long do the beneficial effects of grass cutting last for birds?" Bird Study 58, no. 4 (2011): 390–98. http://dx.doi.org/10.1080/00063657.2011.597841.

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Razak, Meerza Abdul, Pathan Shajahan Begum, Buddolla Viswanath, and Senthilkumar Rajagopal. "Multifarious Beneficial Effect of Nonessential Amino Acid, Glycine: A Review." Oxidative Medicine and Cellular Longevity 2017 (2017): 1–8. http://dx.doi.org/10.1155/2017/1716701.

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Glycine is most important and simple, nonessential amino acid in humans, animals, and many mammals. Generally, glycine is synthesized from choline, serine, hydroxyproline, and threonine through interorgan metabolism in which kidneys and liver are the primarily involved. Generally in common feeding conditions, glycine is not sufficiently synthesized in humans, animals, and birds. Glycine acts as precursor for several key metabolites of low molecular weight such as creatine, glutathione, haem, purines, and porphyrins. Glycine is very effective in improving the health and supports the growth and

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Ahmed, Rebwar, Caroline Rymer, and Darren Juniper. "Effect of Bedding Type on Bird Performance and Gut Health." Jordan Journal of Agricultural Sciences 21, no. 1 (2025): 36–45. https://doi.org/10.35516/jjas.v21i1.1656.

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This study was conducted to compare wood shavings with Envirobed to determine the effect of bedding source on estimates of the amount of bedding consumed, and on some of the gut health indicators/microbial biomarkers (digesta dry matter content and the incidence of Campylobacter jejuni and Clostridium perfringens in the caecum of birds) and diet dry matter availability (assessed using titanium dioxide as a marker). A total of 144 Ross 308 one-day-old broiler chicks were randomly allocated to one of two bedding material treatments (Envirobed or wood shavings). Bird weight was greater for broile

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Okwara, V. C., H. A. Njoku, G.A Iroatumere, K. R. Oleru, and E. O. Obeten. "The Impact of Incorporating Bitter Leaf (Vernonia Amygdalina) as an Additive in Poultry Feed." International Journal of Research 12, no. 2 (2025): 404–12. https://doi.org/10.5281/zenodo.14875430.

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This study investigates the potential benefits of incorporating bitter leaf (Vernonia amygdalina) as a natural feed additive in poultry nutrition. A total of 240 birds were randomly assigned to 4 dietary treatments, including a control group and groups supplemented with varying levels of bitter leaf (0.5%, 1%, and 1.5%). Results showed significant improvements in growth rate (+12%), feed efficiency (+9%), and egg production (+15%) in birds fed bitter leaf-supplemented diets. Bitter leaf addition also enhanced gut health, indicated by increased beneficial gut microbiota and reduced pathogenic b

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Sugiharto, Sugiharto, Turrini Yudiarti, Isroli Isroli, Endang Widiastuti, and Fatan Dwi Putra. "Effect of dietary supplementation with <i>Rhizopus oryzae</i> or <i>Chrysonilia crassa</i> on growth performance, blood profile, intestinal microbial population, and carcass traits in broilers exposed to heat stress." Archives Animal Breeding 60, no. 3 (2017): 347–56. http://dx.doi.org/10.5194/aab-60-347-2017.

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Abstract. Dietary supplementation of additives has recently been part of strategies to deal with the detrimental effects of heat stress (HS) on the performance and carcass traits in broiler chicks. This study aimed to investigate the effect of dietary supplementation with the fungi Rhizopus oryzae or Chrysonilia crassa on growth, blood profile, intestinal microbial population and carcass traits in broiler chicks subjected to HS. R. oryzae and C. crassa are filamentous fungi isolated from the ileum of indigenous Indonesian chickens which exhibited probiotic and antioxidant properties. Two hundr

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Senevirathna, G. G. U. L. B., R. M. A. S. Bandara, T. S. Samarakone, and W. P. C. G. Weerasinghe. "A survey on management practices and attitudes of broiler buy-back farmers towards farm animal welfare in Gampaha district, Sri Lanka: a case study of a commercial broiler chicken processing company." Journal of Agriculture and Value Addition 6, no. 1 (2023): 62–77. http://dx.doi.org/10.4038/java.v6i1.70.

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Contract grower/buy-back farming system is well established in the present poultry industry in Sri Lanka. This study assessed farmer profile, key management practices and attitudes of the buy-back farmers towards broiler chicken welfare. A total of 40 buy-back farmers in Gampaha District, Sri Lanka were interviewed via telephone conversations using an open structured type questionnaire. Data were statistically analyzed using SPSS version 23.0. Relationships among variables were computed by Ordinal Logistic Regression. Majority (56%) of the farmers were in between the age group of 35-50 y, and

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seifi, saeed, Razieh Partovi, Rahem Khoshbakht, and Ali Gilani. "The Effect of Prebiotic Administration in the Diet at Unusual Times on Fecal Shedding of Salmonella enteritidis and Meat Characteristics of Broilers." International Journal of Enteric Pathogens 7, no. 3 (2019): 75–79. http://dx.doi.org/10.15171/ijep.2019.17.

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Background: One of the most important foodborne pathogen which causes enteritis is Salmonella enteritidis (SE). Human cases are mostly associated with the consumption of eggs and poultry meat. Objective: An experiment has been carried out to evaluate the impacts of a yeast product as liquid prebiotic on bacterial shedding, performance indices, and some breast meat characteristics of broiler chickens challenged with SE. Materials and Methods: A total of 90 one-day-old male broiler chicks (Ross 308) were randomly assigned to three different groups with three replicates for each treatment. The tr

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Flux, John E. C. "Comparison of predation by two suburban cats in New Zealand." European Journal of Ecology 3, no. 1 (2017): 85–90. http://dx.doi.org/10.1515/eje-2017-0009.

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AbstractTo study the effects domestic cats may have on surrounding wildlife, a complete list was made of 558 items caught in the garden or brought into the house by one cat over 17 years, from 1988 to 2005. The effect on prey populations was assessed by comparing their abundance with the previous 15 years’ population without a cat. On balance, this cat (Cat 1) was clearly beneficial to the native bird species by killing rodents and deterring mustelids. The diet of a second cat (Cat 2) was recorded in the same way from 2006 to 2016. This cat caught half the number of items 148:287, but in the s

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