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Journal articles on the topic 'Reproductive laboratory work'

Author: Grafiati

Published: 5 June 2025

Last updated: 15 July 2025

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1

Alonso, Felipe, Maximiliano Cánepa, Renata Guimarães Moreira, and Matías Pandolfi. "Social and reproductive physiology and behavior of the Neotropical cichlid fish Cichlasoma dimerus under laboratory conditions." Neotropical Ichthyology 9, no. 3 (2011): 559–70. http://dx.doi.org/10.1590/s1679-62252011005000025.

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In this work we describe for the first time the social and reproductive behavior of the Neotropical fish Cichlasoma dimerus (Heckel, 1840) [Perciformes: Cichlidae], endemic to the Paraná River basin, using a comprehensive-integral approach, including morphological and physiological features. This substrate breeding fish has biparental care of the fry and presents a dominance hierarchy that determines access to breeding territories among males, and to males with territories among females. Gregarious behavior associated with a pale body color, was observed before reproductive behaviors started.

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Akimov, Oleksandr, Irina Martinuk, Oleksandr Tsereniuk, and U. Chereuta. "PLANNING DECISIONS OF RECONSTRUCTION WORK IN PIG REPRODUCTION USING ARTIFICIAL INSEMINATION." Scientific and Technical Bulletin of the Institute of Animal Science NAAS of Ukraine, no. 127 (2022): 59–69. http://dx.doi.org/10.32900/2312-8402-2022-127-59-69.

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Commodity production of pork in GO «GF «Gontarivka» IT NAAS» was based on the use of four premises using a flow system with uneven groups each year. Using current technology, the production cycle was 5.5 to 9.5 months (average sow farrowing ranges 1.26-2.18 per year): four months of idle and growing periods and one and a half months of suckling period. This approach to the reproduction of livestock has led to overconsumption of feed for breeding stock, problems with the reproductive system in some animals and an increase in the total production cost. To improve the system of pig reproduction,

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Berrueta, Mercedes, Julián A. Desiderio, Florencia Agliano, Andrea Victoria López, Eddie O. Aristizabal Abud, and Nicolás Ortiz. "Mating behavior of Patagonian octopus (Octopus tehuelchus) under laboratory conditions." Marine and Fishery Sciences (MAFIS) 33, no. 1 (2020): 115–20. http://dx.doi.org/10.47193/mafis.3312020061807.

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Patagonian octopus (Octopus tehuelchus) is a species that holds an artisanal fishery in the northern area of the Argentine Patagonian coast and has a potential for aquaculture development. This work aimed to characterize the mating behavior of four pairs of Patagonian octopuses under laboratory conditions. Results showed that this species has a complex reproductive behavior. Remarkably, female remained inside her shelter during pre-copula, copulation and intercourse events. Male and female faced by the oral face during sexual intercourse, which lasted 3 to 5 min. The observations will contribu

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Matushkina, K. A. "Age-related changes in fertility of female Batura toads, Bufotes baturae (Stöck, Schmid, Steinlein and Grosse, 1999), under laboratory conditions." Timiryazev Biological Journal, no. 3 (January 22, 2025): 92–97. https://doi.org/10.26897/2949-4710-2024-2-3-92-97.

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The work is devoted to the study of age-related changes in reproductive parameters of female Batura toads, Bufotes baturae, under laboratory conditions. The material for the study were clutches obtained from toads aged 2 to 7 years. The highest fertility (1830±298.6 eggs) was observed in 5-year-old females. The peak of reproductive activity is between 3 and 6 years of age, after which fertility decreases statistically significantly. Other reproductive parameters (egg diameter and spawn cord width) did not show any age-related changes. The results obtained will be useful in planning laboratory

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Berrueta, Mercedes, Julián Desiderio, Florencia Agliano, Andrea Victoria López, Eddie Oscar Aristizabal, and Nicolás Ortíz. "Mating behavior of Patagonian octopus (Octopus tehuelchus) under laboratory conditions." Marine and Fishery Sciences 33, no. 1 (2020): 115–20. https://doi.org/10.5281/zenodo.3925605.

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Patagonian octopus (<em>Octopus tehuelchus</em>) is a species that holds an artisanal fishery in the northern area of the Argentine Patagonian coast and has a potential for aquaculture development. This work aimed to characterize the mating behavior of four pairs of Patagonian octopuses under laboratory conditions. Results showed that this species has a complex reproductive behavior. Remarkably, female remained inside her shelter during pre-copula, copulation and intercourse events. Male and female faced by the oral face during sexual intercourse, which lasted 3 to 5 min. The observations will

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Kalyuzhny, Yvan, Rosa Yavlieva, Zoya Morozova, Grigory Firsov, and Oleg Budtuev. "A study on modeling infectious metritis in dairy cows." BIO Web of Conferences 160 (2025): 01024. https://doi.org/10.1051/bioconf/202516001024.

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The study highlights the work on the creation of a method for assessing reproductive capacity in metritis of dairy cows on the model of laboratory rodents in experimental conditions, as well as the study of the effect of material of uterine secretions of cows on the functioning of the reproductive system of female rats after childbirth. The article presents the methods of reproduction of infectious metritis of dairy cows of Holstein-Friesian and Simmental breeds on female Sprague Dawley rats. The method of infecting uterine tissues of laboratory rats with microbial cocktail obtained from Holst

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Martinyuk, Irina. "THE WORK OF RESEARCHS AT THE DEPARTMENT OF ANIMAL REPRODUCTION BIOTECHNOLOGY OF THE NAAN INSTITUTE OF ANIMAL BREEDING IN DEVELOPING THE SPHERE OF PIG REVIVAL." Scientific and Technical Bulletin of the Institute of Animal Science NAAS of Ukraine, no. 128 (2022): 118–30. http://dx.doi.org/10.32900/2312-8402-2022-128-118-130.

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The scientific contribution of Researchs of the laboratory of artificial fecundation of farm animals of the Institute of Animal Sciences NAAS (now the Department of reproduction biotechnology of farm animals) in the development of artificial fecundation was analyzed as a method of large-scale breeding in the national livestock breeding. The work of Researchs on the development of industry fundamental and applied research on the study of the physiology of pig reproduction was presented. The development of the Laboratory of Boar Reproduction has been examined from the moment of its existence up

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Dubrovskaya, A. B. "Modern methods of research of reproductive organs of mares in pedigree horse breeding." Glavnyj zootehnik (Head of Animal Breeding), no. 1 (2022): 65–74. http://dx.doi.org/10.33920/sel-03-2201-08.

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The most important aspect of herd reproduction in horse breeding is the quality of the breeding nucleus of the breeding stock. Currently, the system of domestic comprehensive reproductive evaluation includes five main methods such as rectal, ultrasound, vaginal, cytological and bacteriological studies of the genital tract of mares, which precede visual examination of the external genitalia and the collection of information about the reproductive history of the mare. The purpose of the work is to give an overview and description of the methods of comprehensive evaluation of the reproductive sta

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9

Zhao, Yuewen, Sydney Vanderkooi, and Frederick W. K. Kan. "The role of oviduct-specific glycoprotein (OVGP1) in modulating biological functions of gametes and embryos." Histochemistry and Cell Biology 157, no. 3 (2022): 371–88. http://dx.doi.org/10.1007/s00418-021-02065-x.

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AbstractDiverse lines of evidence indicate that the mammalian oviduct makes important contributions to the complex process of reproduction other than being simply a conduit for the transport of gametes and embryos. The cumulative synthesis and transport of proteins secreted by oviductal secretory cells into the oviductal lumen create a microenvironment supporting important reproductive events, including sperm capacitation, fertilization, and early embryo development. Among the components that have been identified in the oviductal fluid is a family of glycosylated proteins known collectively as

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Sahota, T. S., I. Leal, E. White, J. F. Manville, A. Ibaraki, and J. Hollmann. "ACETONE AFFECTS FLIGHT BEHAVIOUR AND EXPRESSION OF THE VITELLOGENIN GENE OF PISSODES STROBI." Canadian Entomologist 130, no. 3 (1998): 383–84. http://dx.doi.org/10.4039/ent130383-3.

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During their reproductive period, white pine weevils, Pissodes strobi Peck., remain on susceptible Sitka spruce trees, Picea sitchensis (Bong) Carr., that are suitable for their reproduction and progeny development. Weevils depart from resistant Sitka spruce trees, where weevil reproduction is inhibited or blocked by resistance (Sahota et al. 1994). This resistance appears to work by interfering with the juvenile hormone (JH) system of the weevil (Sahota et al. 1994; Leal et al. 1997). In our experiments to investigate whether or not interference with JH could also account for the weevils' dom

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Orton, Frances, Sofie Svanholm, Erika Jansson, et al. "A laboratory investigation into features of morphology and physiology for their potential to predict reproductive success in male frogs." PLOS ONE 15, no. 11 (2020): e0241625. http://dx.doi.org/10.1371/journal.pone.0241625.

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Amphibian populations are declining globally, however, the contribution of reduced reproduction to declines is unknown. We investigated associations between morphological (weight/snout-vent length, nuptial pad colour/size, forelimb width/size) and physiological (nuptial pad/testis histomorphology, plasma hormones, gene expression) features with reproductive success in males as measured by amplexus success and fertility rate (% eggs fertilised) in laboratory maintained Silurana/Xenopus tropicalis. We explored the robustness of these features to predict amplexus success/fertility rate by investi

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Lyubimova, Anna, and Dmitry Eremin. "Laboratory varietal control as a guarantee of successful work of agribusiness in Russia." MATEC Web of Conferences 170 (2018): 04015. http://dx.doi.org/10.1051/matecconf/201817004015.

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A new direction of agribusiness has been formed in the modern agricultural industry. This is expressed in the appearance of highly specialized enterprises working in the field of production of high-quality seeds of agricultural crops. The use of electrophoresis method in varietal identification is a new technology in domestic agribusiness. The purpose of the research was to study the electrophoresis role of prolamins in varietal identification of crops for high-quality seed material. The laboratory of varietal identification of seeds analyzed 47 varieties of oats Russian selection. On the basi

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Khalak, Victor, Oleksandr Tsereniuk, Ludmila Gryshyna, and Mariia Ilchenko. "Reproductive qualities and the level of their phenotypical consolidation in sows of different operational value." Pig breeding the interdepartmental subject scientific digest, no. 75-76 (December 7, 2021): 9–19. http://dx.doi.org/10.37143/0371-4365-2021-75-76-01.

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The results of studies of indicators of reproductive qualities of sows of different operational value, the level of their phenotypic consolidation are presented, and the economic efficiency of using sows in experimental groups is calculated. The experimental part of the research was carried out in LLC "Druzhba-Kaznacheevka" in the Dnepropetrovsk region and in the laboratory animal husbandry of the State Institution "Institute of Grain Crops of the NAAS of Ukraine". The work was carried out according to the program of scientific research of NAAS No. 31 "Genetic improvement of farm animals, thei

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MIRCU, Călin, and Ioan HUȚU. "A DECADE OF RESEARCH AND ACHIEVEMENTS IN THE ASSISTED REPRODUCTION LABORATORY FROM HORIA CERNESCU RESEARCH UNIT." Scientific Papers Journal VETERINARY SERIES 67, no. 2 (2024): 29–34. https://doi.org/10.61900/spjvs.2024.02.06.

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At the end of January 2014, it was created the Laboratory for assisted reproduction in the Horia Cernescu Research Unit (IVF-CLCHC). Our immediate concern was to put together, from the scratch, all especially techniques which are usual in such a lab. The Assisted reproductive techniques we have put together, regarding the degree of difficulty and all the necessary steps were IVP (in vitro production), IVF (in vitro fertilization), ICSI – intracytoplasmic sperm injection and NT (nuclear transfer). PCR, rt-PCR, or qPCR were used for the assessment of the gene expression levels in all the selecte

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Zhao, Limin, and Guilan Ma. "Reproductive Potential and Population Growth of the Worm Enchytraeus buchholzi (Clitellata: Enchytraeidae) Under Laboratory Conditions as Well as Regression Models." Biology 14, no. 2 (2025): 167. https://doi.org/10.3390/biology14020167.

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The worm Enchytraeus buchholzi is a new pest injuring American ginseng Panax quinquefolium. To explore its reproductive potential and then estimate its population dynamics, the authors conducted two related experiments: (1) measuring individual fecundity in its lifetime by rearing each of the parent adults alone in a wet sandy dish at 18 and 21 °C indoors; (2) testing population growth by rearing each of the parent adults together with its offspring for a time longer than two generations at 21 °C. In Experiment I, five dependent variables, namely daily mean cocoons (DMC), cumulative cocoons (C

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Spiridonova, N. V., and A. A. Demura. "Features of laboratory data in the early diagnosis of tumors and ovarian tumours." Meditsinskiy sovet = Medical Council, no. 9 (July 30, 2020): 206–12. http://dx.doi.org/10.21518/2079-701x-2020-9-206-212.

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At the moment, there are a huge number of risk factors for the development of a tumor process in the ovaries. One of the fundamental niches that allow us to suspect the presence of an imbalance in the body, and the presence of neoplasms is laboratory diagnostics. The purpose of our work was to evaluate changes in laboratory blood tests as a predictor of the development of oncological tumor process in the ovaries in patients of reproductive age (18-40 years). The collection and processing of laboratory data of 168 outpatient and inpatient medical histories of patients of reproductive age, opera

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Bennett, JH, WG Breed, DL Hayman, and RM Hope. "Reproductive and Genetic-Studies With a Laboratory Colony of the Dasyurid Marsupial Sminthopsis-Crassicaudata." Australian Journal of Zoology 37, no. 3 (1989): 207. http://dx.doi.org/10.1071/zo9890207.

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The fat-tailed dunnart, Sminthopsis crassicaudata, is a small insectivorous dasyurid (adult weight about 16 g) widely distributed in Australia. A laboratory colony of this marsupial, which has been built up over many years, is providing material for studies of dasyurid reproductive biology and genetics. In the area of reproductive biology, we have found a marked disparity in the age of maturation between the two sexes, and we are currently studying certain aspects of spermatogenesis, sperm transport, fertilisation and early embryonic development. Genetical studies have revealed large differenc

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Oliveira-Filho, EC, NR Caixeta, NCS Simplício, SR Sousa, TP Aragão, and DHF Muniz. "Implications of water hardness in ecotoxicological assessments for water quality regulatory purposes: a case study with the aquatic snail Biomphalaria glabrata (Say, 1818)." Brazilian Journal of Biology 74, no. 1 (2014): 175–80. http://dx.doi.org/10.1590/1519-6984.24212.

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Water hardness is a property depending on the presence of alkaline earth metals, mainly calcium and magnesium. Among the strategies for water quality monitoring, ecotoxicological assays are performed to minimize impacts and classify water bodies. For these laboratory evaluations parameters are previously defined in the guidelines, including water hardness for both cultivation and testing medium. The present work was performed to evaluate the effects of different levels of water hardness on the survival and reproduction of the freshwater snail Biomphalaria glabrata and discuss the influence of

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Cēdere, Dagnija, and Sandra Kalniņa. "MOODLE TESTS FOR ASSESSING THE ACADEMIC ACHIEVEMENT IN CHEMISTRY LABORATORY WORKS IN HIGHER EDUCATION INSTITUTION." Natural Science Education in a Comprehensive School (NSECS) 23, no. 1 (2017): 109–15. http://dx.doi.org/10.48127/gu/17.23.109.

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Assessment is an important component of education quality assurance in higher education institution. The type and form of assessment depend on different factors. The use of tests in assessing the academic achievement is an effective method that ensures the objectivity of the assessment. The Chemistry course acquired by students of different science specialities of University of Latvia envisages the assessment of students’ laboratory works. The current experience shows that the academic staff finds it difficult to evaluate objectively student’s knowledge and skills when assessing the laboratory

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Staroselov, Mikhail A., Natalya Basova, Elena Novikova, Aminet K. Skhatum, and Vitaliy V. Novikov. "Influence of polymorphism of loci associated with reproductive qualities of large horned cattle on immunobiological parameters of carriers." Veterinaria Kubani, no. 5 (October 31, 2021): 7–9. http://dx.doi.org/10.33861/2071-8020-2021-5-7-9.

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In the structure of losses in the livestock industry, pathologies of the reproductive organs of cattle occupy a leading place, creating serious problems for motivating business owners to develop animal husbandry. A decrease in the rate of reproduction in animal husbandry is facilitated by the wide spread of symptomatic infertility of cows, one of the main reasons for which is gynecological diseases: metritis, mastitis and ovarian pathologies. As a result of the studies, the authors obtained reliable data indicating that in case of reproduction problems in cows, the platelet level decreases by

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Khairullin, I. R., G. N. Naddaf, M. V. Kovalev, and E. D. Stepanenko. "Endocrine disorders and their impact on reproductive health: modern aspects of diagnosis and treatment." CARDIOMETRY, no. 31 (May 25, 2024): 25–32. http://dx.doi.org/10.18137/cardiometry.2024.31.2532.

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This work is a comprehensive review of modern aspects of the diagnosis and treatment of endocrine disorders and their impact on reproductive health. The basic principles of the functioning of the human endocrine system are highlighted, including the role of hormonal balance in maintaining the health and functioning of the reproductive system. Various types of endocrine disorders and their effects on reproductive health are also being investigated. In particular, conditions such as hypothyroidism, hyperthyroidism, polycystic ovary syndrome (PCOS), hyperprolactinemia and diabetes, their symptoms

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Quiñones-Arreola, Marcos F., G. Fabiola Arcos-Ortega, Vicente Gracia-López, et al. "Reproductive broodstock performance and egg quality of wild-caught and first-generation domesticated Seriola rivoliana reared under same culture conditions." Latin American Journal of Aquatic Research 43, no. 5 (2017): 953–62. http://dx.doi.org/10.3856/vol43-issue5-fulltext-15.

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Almaco jack, Seriola rivoliana as well as some related species is of great interest in marine fish aquaculture. However, there are few studies about their reproduction in captivity. In this research work, reproductive performance and egg quality in two groups of adult Seriola rivoliana, caught in the wild and domesticated-F1 analyzed and compared, reared under optimal maturation conditions in a commercial private Laboratory. A total of 28 wild adult (>5 kg) were caught at La Paz Bay, Baja California Sur, Mexico, and 30 adult domesticated-F1 broodstock (>5 kg), were obtained from an origi

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MONCALEANO, J. S., L. M. JIMÉNEZ, and C. A. SÁNCHEZ. "Mosaicismo leucocitario asociado a infertilidad en cuatro yeguas." Orinoquia 11, no. 1 (2007): 87–91. http://dx.doi.org/10.22579/20112629.173.

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Titulo en ingles: Mosaicism leucocitary associated to infertility in four mares.RESUMEN: Se tomaron muestras de sangre periférica a cuatro yeguas de 19, 13, 10 y 4 años de edad, de raza Silla francesa, dos Criollas Colombianas y una Paso Fino Colombiano respectivamente, para realizar cultivo de linfocitos. Los animales fueron remitidos por la Clínica de Reproducción al Laboratorio de Citogenética Animal de la Facultad de Medicina Veterinaria y de Zootecnia de la Universidad Nacional de Colombia por antecedentes de problemas reproductivos. A la palpación se detectaron órganos reproductivos subd

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Babatunde, Elizabeth Moyinoluwa, and Mathias Abiodun Emokpae. "A Comprehensive Review of Thyroid Dysfunction: Hidden Player in Male Infertility." Fertility & Reproduction 06, no. 04 (2024): 166–75. https://doi.org/10.1142/s2661318224300046.

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BACKGROUND: Male infertility is a global health challenge and the prevalence is increasing, particularly in the so-called infertility belt of sub-Saharan Africa, including Nigeria. The etiologies are complex and multifactorial. The impact of thyroid disorders on male reproductive health is often overlooked. This unrecognized link can significantly affect sperm quality, quantity, and overall fertility. The involvement of thyroid dysfunction in male infertility is now increasingly reported, but thyroid hormone evaluation is rarely determined in the laboratory work-up during fertility evaluations

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Albertini, Maria Cristina, Daniele Fraternale, Federica Semprucci, et al. "Bioeffects of Prunus spinosa L. fruit ethanol extract on reproduction and phenotypic plasticity of Trichoplax adhaerens Schulze, 1883 (Placozoa)." PeerJ 7 (April 18, 2019): e6789. http://dx.doi.org/10.7717/peerj.6789.

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The aim of this work was to test and analyse the bioeffects of Prunus spinosa L. (Rosacaee) fruit ethanol extract on Trichoplax adhaerens Schulze, 1883 (Placozoa) laboratory cultures which—for the first time—were employed as in vivo biological model to assess the bioactivity of a natural extract. The ethanol extract of P. spinosa was administrated during a 46 day experimental period; ultrastructural (by optical, confocal, TEM and SEM microscopy) and morphometric analyses indicated that treated Trichoplax adhaerens showed significant differences in viability, reproductive modalities, body shape

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Shatokhin, K. S., S. V. Nikitin, N. N. Kochnev, et al. "Inbreeding and reproductive signs in mini-pigs ICG SB RAS." Bulletin of NSAU (Novosibirsk State Agrarian University), no. 1 (April 11, 2023): 241–52. http://dx.doi.org/10.31677/2072-6724-2023-66-1-241-252.

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There is practically no statistical analysis of the influence of the degree of inbreeding on the reproductive qualities of laboratory mini-pigs in the literature. The present work is aimed at determining the impact of the inbreeding factor on the development of such signs of reproduction as live weight at birth, multiple births and the safety of piglets during the suckling period. Laboratory mini-pigs bred at the Institute of Cytology, and Genetics SB RAS (Novosibirsk, Russia) were selected as the research object. The following signs were directly evaluated: the mass of an individual at birth

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Ugbe, Lawrence. "Comparative analysis of the repellency activity of single compounds and the synthetic blends of semiochemicals from Aframomum melegueta (R.schum) and Dennittia tripetala (Bak.F) against Rhizopertha dominica in Calabar, Nigeria." Tropical Journal of Science and Technology 1, no. 2 (2021): 59–69. http://dx.doi.org/10.47524/tjst.v1i2.8.

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Bioassay experiments were carried out in Calabar to compare the repellency activity of single compounds and the synthetic blends of Semiochemicals extracted from Afromomum melegueta and Dennittia tripetala. The aim of the experiment was to determine the efficacy of single compounds and the synthetic blends in suppressing the reproductive potential and adult emergence of Rhizopertha dominica, (Fabricius), a primary pest of stored cassava pellets and cereal grains in Sub-Saharan Africa. Insect culture of the adult R. dominica was set up in the laboratory at Federal College of Education Obudu to

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Figueiredo, Rodolfo Antônio de, Aline Aparecida de Oliveira, Maria Alice Zacharias, et al. "Reproductive ecology of the exotic tree Muntingia calabura L. (Muntingiaceae) in southeastern Brazil." Revista Árvore 32, no. 6 (2008): 993–99. http://dx.doi.org/10.1590/s0100-67622008000600004.

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The exotic tree Muntingia calabura L. (Muntingiaceae), a species native to Central America, is used as fish feed and fiber and cellulose production in Brazil. This study was carried out in urban areas and verified the reproductive biology of this plant species. Flower and fruit morphology, compatibility system, reproductive phenology, pollination and frugivore animals, and germination of disseminated seeds were recorded by standard field and laboratory procedures. This tree is self-compatible and autonomously self-pollinated, with its flowers being mainly visited by bees and its fruits consume

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van den Heuvel, Michael R., Pierre H. Martel, Tibor G. Kovacs, et al. "Evaluation of Short-Term Fish Reproductive Bioassays for Predicting Effects of a Canadian Bleached Kraft Mill Effluent." Water Quality Research Journal 45, no. 2 (2010): 175–86. http://dx.doi.org/10.2166/wqrj.2010.021.

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Abstract Under the Canadian Environmental Effects Monitoring (EEM) program for pulp and paper effluents, the observation of a national response pattern of decreased gonad size and increased fish condition and liver size has triggered a centralized multiagency investigation of cause (IOC) of reproductive impacts in fishes. The purpose of the component of the IOC study presented here is to compare a number of fish bioassays for determining reproductive and reproductive-endocrine effects of a bleached kraft mill effluent. The bleached kraft mill chosen for this study had demonstrated the national

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Polanski, Lukasz Tadeusz, and Miriam Baumgarten. "Endometrial Receptivity Testing and Therapy in Assisted Reproductive Treatment." Seminars in Reproductive Medicine 39, no. 01/02 (2021): 027–33. http://dx.doi.org/10.1055/s-0041-1730421.

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AbstractAssisted reproductive treatment (ART) gave numerous couples the chance to have their biological child. Improvement in laboratory and culture conditions allows for selection of embryos with the best developmental potential, although replacement of these top-quality embryos does not, however, guarantee reproductive success. Endometrial receptivity is essential for pregnancy establishment and may be the limiting factor for the observed pregnancy rates with ART. Multiple modalities have been in use to assess endometrial receptivity, with ultrasound assessment of the endometrial morphology

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Solander, Tove. "Dolldonics: Doll Games as a Laboratory of Experimental Desire." Somatechnics 5, no. 2 (2015): 217–33. http://dx.doi.org/10.3366/soma.2015.0162.

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This article considers doll games not as an exercise for reproductive heterosexuality but as a laboratory of queer sexuality. My main source is the literary hypertext The Doll Games by Shelley and Pamela Jackson. In this work, the unsexed doll body is described as the ‘sexless baton’ at the core of sex and penises are compared to dolls played with in the doll games of sex. The term dolldonics indicates a Deleuzian understanding of such objects used to prosthetically extend bodies and make desiring connections. They are not to be understood as fetishes in the psychoanalytic sense, inevitably po

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Sandoval Suncion, Samuel Samir, and Pedro Saul Castillo Carrillo. "Biología de Spodoptera eridania (Stoll) en el cultivo de uva (Vitis vinifera L.) en condiciones de laboratorio." Manglar 20, no. 4 (2023): 301–8. http://dx.doi.org/10.57188/manglar.2023.034.

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The grape crop (Vitis vinifera L.) in the Piura region is infested by pests such as Spodoptera eridania Stoll, a polyphagous species native to the South American tropics. The objective of carrying out the research work was to know basic aspects about its morphology and biology, because there were no records of them in this crop, nor in others in the region. Daily observations were made to determine the duration of the egg incubation period, larval development, and the pupal stage and adult longevity. Once the adults emerged, they mated to establish the oviposition rhythm and reproductive capac

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Rhind, S. M. "An introduction to endocrine disrupting compounds." Proceedings of the British Society of Animal Science 2001 (2001): 228. http://dx.doi.org/10.1017/s1752756200006104.

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Endocrine disrupting compounds (EDC) include a diverse range of chemicals derived from industrial, agricultural and domestic processes (IEH, 1999). They include phthalates (used in the manufacture of plastics), alkyl phenols (present in detergents and surfactants), polychlorinated biphenyls (PCB; formerly used in electrical equipment), dioxins (released from incinerators), organochlorine pesticides and organohalogens (used as flame retardants).The compounds have a wide range of chemical structures but all of them have the capacity to disrupt normal hormonal actions. In some cases they bind to

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Silva Júnior, Walter Souza da, Bruno Fagundes, and Gabriel de Souza Silva. "IMPORTÂNCIA DA TRANSFERÊNCIA EMBRIONÁRIA EQUINA: REVISÃO DE LITERATURA." Revista ft 29, no. 140 (2024): 01–02. http://dx.doi.org/10.69849/revistaft/ar10202411151501.

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The biotechnology of equine embryo transfer is crucial in veterinary medicine, especially in equine reproductive management. The objective of this work is to describe the advantages of this procedure when using elderly donors or those with problems that prevent pregnancy. The technique involves collecting viable embryos from donor mares and implanting them into recipient mares. Success depends on the appropriate management of donors and recipients, synchronization of the estrous cycle, embryo quality and laboratory conditions. Advantages include increasing the production of foals per donor mar

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Shustov, E. B., and A. E. Kim. "Safety Profile of a New Dimethylaminoethanol Derivative by Oral Administration to Laboratory Animals." Journal Biomed 19, no. 3 (2023): 82–86. http://dx.doi.org/10.33647/2074-5982-19-3-82-86.

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A new derivative of dimethylaminoethanol, butanedioic and trans-butenedioic acids (laboratory code ADK-17) was synthesized at the Department of Organic Chemistry (Professor I.P. Yakovlev is the Head of the Department) of St. Petersburg State Chemical and Pharmaceutical University (SPCPU). This is a promising compound planned for use as an oral dosage form. In this work, we aim to evaluate manifestations of the general and specific toxicity of the new drug. Laboratory animals (white mice, rats, rabbits, guinea pigs) were used as test systems for the preclinical safety study of the new compound.

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Cooke, Paul S., Manjunatha K. Nanjappa, CheMyong Ko, Gail S. Prins, and Rex A. Hess. "Estrogens in Male Physiology." Physiological Reviews 97, no. 3 (2017): 995–1043. http://dx.doi.org/10.1152/physrev.00018.2016.

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Estrogens have historically been associated with female reproduction, but work over the last two decades established that estrogens and their main nuclear receptors (ESR1 and ESR2) and G protein-coupled estrogen receptor (GPER) also regulate male reproductive and nonreproductive organs. 17β-Estradiol (E2) is measureable in blood of men and males of other species, but in rete testis fluids, E2 reaches concentrations normally found only in females and in some species nanomolar concentrations of estrone sulfate are found in semen. Aromatase, which converts androgens to estrogens, is expressed in

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Oliveira, Isaias, José Cola Zanuncio, José Eduardo Serrão, Teresinha Vinha Zanuncio, Tobias Baruc Moreira Pinon, and Maria do Carmo Queiroz Fialho. "Effect of female weight on reproductive potential of the predator Brontocoris tabidus (Signoret, 1852) (Heteroptera: Pentatomidae)." Brazilian Archives of Biology and Technology 48, no. 2 (2005): 295–301. http://dx.doi.org/10.1590/s1516-89132005000200017.

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The objective of this work was to determine the fecundity of the predator Brontocoris tabidus (Signoret) (Heteroptera: Pentatomidae) females of two weight classes aiming to define, which one presented higher productivity in the laboratory. Males and females of B. tabidus were reared from nymphs fed with Tenebrio molitor L. (Coleoptera: Tenebrionidae) pupae in laboratory. Females of B. tabidus weighting 95 to 150 mg and those with 160 to 220 mg constituted two treatments. Oviposition period and numbers of egg masses, eggs and nymphs per female of B. tabidus were higher in the treatment with hea

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Halik, Abdul, St Wardah Hanaf e. Das, Muhammad Naim, et al. "Virtual Based Principal Leadership Model in Increasing Performance and Quality of Middle Education." Revista de Gestão Social e Ambiental 18, no. 6 (2024): e05797. http://dx.doi.org/10.24857/rgsa.v18n6-053.

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Purpose: The purpose of this article is to introduce a new analytical lens for examining the role of Assisted Reproductive Technology (ART) in the construction of the human body and motherhood from a post-humanistic perspective.  Method: Employing a qualitative methodology, this study conducted in-depth interviews, observations, and analysis of ART laboratory practices, utilizing samples drawn from infertility patients and ART laboratory work. The investigation delved into the spatial dynamics of ART operations within clinical settings, elucidating how technology influences the con

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Mažuran, Neda, and Goran Kovačević. "Comparison of reproductive success of Daphnia magna Straus cultured in different types of water." Croatian Journal of Fisheries 83, no. 1 (2025): 15–20. https://doi.org/10.2478/cjf-2025-0003.

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Abstract In laboratory culture, D. magna is very sensitive to environmental conditions such as temperature, water chemical composition, pH value, illumination, food quality and quantity, and population density. Unfavourable conditions affect reproductive performance and survival. In this work, the reproductive success of D. magna was compared in different types of water recommended in toxicity test guidelines and in the literature on cultivation. Four types of water were compared, two natural types of water (dechlorinated tap water and unpolluted surface water) and two synthetic types of water

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Khalak, V. I., B. V. Gutyj, and O. M. Bordun. "DURATION OF PRODUCTIVE LONGEVITY OF SOWS OF DIFFERENT LEVELS OF ADAPTATION AND VIABILITY." Scientific and Technical Bulletin оf State Scientific Research Control Institute of Veterinary Medical Products and Fodder Additives аnd Institute of Animal Biology 25, no. 1 (2024): 231–40. http://dx.doi.org/10.36359/scivp.2024-25-1.29.

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The work aimed to investigate the reproductive qualities of sows of different levels of adaptation and viability. The research was carried out in the conditions of the breeding breeder for breeding pigs of the large white breed of the experimental farm and the laboratory of animal husbandry and fodder production of the Institute of Agriculture of the Northeast of the National Academy of Sciences, as well as the laboratory of animal husbandry of the State University “Institute of Grain Crops of the National Academy of Sciences”. The work was carried out by the program of scientific research of

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Yaw, Alexandra, Autumn McLane-Svoboda, and Hanne Hoffmann. "Shiftwork and Light at Night Negatively Impact Molecular and Endocrine Timekeeping in the Female Reproductive Axis in Humans and Rodents." International Journal of Molecular Sciences 22, no. 1 (2020): 324. http://dx.doi.org/10.3390/ijms22010324.

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Shiftwork, including work that takes place at night (nightshift) and/or rotates between day and nightshifts, plays an important role in our society, but is associated with decreased health, including reproductive dysfunction. One key factor in shiftwork, exposure to light at night, has been identified as a likely contributor to the underlying health risks associated with shiftwork. Light at night disrupts the behavioral and molecular circadian timekeeping system, which is important for coordinated timing of physiological processes, causing mistimed hormone release and impaired physiological fu

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Guitián, Javier, and Pablo Guitián. "The breeding system of Hyacinthoides non-scripta (Asparagaceae): assessing the role of geitonogamy with captive pollinators." Plant Ecology and Evolution 155, no. 2 (2022): 182–88. http://dx.doi.org/10.5091/plecevo.85658.

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Background and aims – In self-incompatible species, geitonogamous pollen deposition can result in stigma clogging, with negative effects on cross-fertilisation and subsequently reduced fruit and seed set. In this work, using laboratory and field experiments with pollinators in captivity, we describe the reproductive system of Hyacinthoides non-scripta and analyse the effect of the different mechanisms of pollen transfer, trying to quantify the effect of geitonogamy on the reproductive success of the species. Material and methods – Using laboratory and field experiments with pollinators in capt

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Berestov, D. S., Yu G. Vasiliev, A. N. Kulikov, and N. V. Isupova. "Influence of the “Active Mix” supplement with separate administration of antagonistic components on the structure of the mice internal organs." BIO Web of Conferences 36 (2021): 05013. http://dx.doi.org/10.1051/bioconf/20213605013.

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The question of the need for separate administration of feed additives’ components that are antagonistic from the point of view of their chemical properties and physiological effects has long been debated among researchers. The authors have proposed a new supplement based on chelate compounds, which components’ effect on the organism of laboratory animals has been partially considered earlier. However, the assessment of the components’ effects on the morphology of the excretory and reproductive systems’ organs has not been studied. In this regard, the work considered the effect of feed additiv

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Guitián, Javier, and Pablo Guitián. "The breeding system of Hyacinthoides non-scripta (Asparagaceae): assessing the role of geitonogamy with captive pollinators." Plant Ecology and Evolution 155, no. (2) (2022): 182–88. https://doi.org/10.5091/plecevo.85658.

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Background and aims – In self-incompatible species, geitonogamous pollen deposition can result in stigma clogging, with negative effects on cross-fertilisation and subsequently reduced fruit and seed set. In this work, using laboratory and field experiments with pollinators in captivity, we describe the reproductive system of Hyacinthoides non-scripta and analyse the effect of the different mechanisms of pollen transfer, trying to quantify the effect of geitonogamy on the reproductive success of the species. Material and methods – Using laboratory and field experiments with pollinators in capt

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Gudmundsson, H. "Life History Patterns of Polychaete Species of the Family Spionidae." Journal of the Marine Biological Association of the United Kingdom 65, no. 1 (1985): 93–111. http://dx.doi.org/10.1017/s0025315400060835.

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The reproductive morphology and larval development in Spionidae has been dealt with extensively by Soderström (1920), Hannerz (1956), Orrhage (1964). Simon (1967), Blake (1969) and Rice (1980). The family shows a considerable variation in gamete morphology, modes of sperm transfer and types of larval development. One might also expect variability in features of the life history patterns, such as the life span, reproductive age, reproductive cycles and fecundity, both between and within species.Previous population studies on spionids include the work on populations of Polydora ciliata (Johnston

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Turdybekova, Ya G., A. A. Kelmyalene, and Berikbai Zh Kultanov. "CLINICAL LABORATORY INVESTIGATION OF REPRODUCTIVE HEALTH OF WOMEN LIVING IN ECOLOGICALLY UNFAVORABLE REGIONS OF KAZAKHSTAN." Hygiene and sanitation 97, no. 4 (2018): 297–300. http://dx.doi.org/10.18821/0016-9900-2018-97-4-297-300.

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In the area under study, mainly saline and solonetsous territories. The situation negatively affects the offspring of the population living in the region Continuing the work on assessing the impact of climatic and anthropogenic factors of the Aral region on the reproductive health of the female population, we compared the reproductive health of women living in five settlements of the Kyzylorda region and two settlements in the Karaganda region. There were observed 686 women in the zone of environmental crisis, 720 women living in the zone of environmental disaster and 388 women living in the K

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Matushkina, К. А., and V. D. Davydenkova. "Impact of live food on the reproductive performance of the Batur toad, <i>Bufotes baturae</i> (Stöck, Schmid, Steinlein et Grosse, 1999) in captivity." Timiryazev Biological Journal 1, no. 4 (2024): 59–68. http://dx.doi.org/10.26897/2949-4710-2023-4-59-68.

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The work is devoted to the study of the reproductive performance of a narrow areal triploid toads (Batur toad, Bufotes baturae) reared on different live food (Turkestan and marble cockroaches). Material for the work was obtained over three breeding seasons. In the first breeding season, the number of pairs reared on the Turkestan cockroach (Shelfordella lateralis) was 7 (64%) and on the marbled cockroach (Nauphoeta cinerea) – 2 (18%). In the second and third seasons, the numbers were 8 (89%) and 11 (100%) respectively. The average fecundity of females fed on the Turkestan cockroach ranged from

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Dutta, Malamoni, and K. L. Talukdar. "A histological study of uterus in reproductive and postmenopausal women." National Journal of Clinical Anatomy 04, no. 01 (2015): 017–25. http://dx.doi.org/10.1055/s-0039-3401546.

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Abstract Background and aims: The "Uterus" or "Womb" is a part of the female reproductive tract that receives the fertilized ovum from the oviduct, provides the bed for implantation and establishes the vascular connections necessary for sustenance of the embryo throughout its development. Due to increasing rate of infertility, the reproductive organs are gaining importance. The aim of the study is to ascertain that the research work could be utilized for investigation and guidance for management of infertility cases. The knowledge of normal histological architecture of the uterus will be of he

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Khalak, V. I., B. V. Gutyj, and I. V. Korkh. "THE LEVEL OF DISCRETION OF REPRODUCTIVE QUALITIES AND THEIR CORRELATION RELATIONS IN SOWS OF DIFFERENT INTERBREED DIFFERENTIATION ACCORDING TO SOME EVALUATION INDEXES." Scientific and Technical Bulletin of the Institute of Animal Science NAAS of Ukraine, no. 125 (2021): 216–26. http://dx.doi.org/10.32900/2312-8402-2021-125-216-226.

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The article presents the results of studies of reproductive qualities of sows of different classes of distribution according to some evaluation indexes, the level of their discreteness and correlation. The study was conducted in agricultural enterprises of the Dnipropetrovsk region and the laboratory of animal husbandry of the State Institution «Institute of Grain Crops of NAAS of Ukraine». The work was performed according to the research program of NAAS №30 «Pigbreeding». Evaluation of sows for reproductive qualities was carried out taking into account the following characteristics: fertility

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Ascencio Aguirre, Luis Alfonso, Martha Enríquez D., Imelda Martínez M., and Dalila Aldana A. "Effect of temperature and salinity on the reproductive cycle of males and females of Crassostrea virginica (Bivalvia: Ostreidae)." Revista de Biología Tropical 64, no. 2 (2016): 449. http://dx.doi.org/10.15517/rbt.v64i2.18137.

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<p>The American oyster, <em>Crassostrea virginica,</em> is one of the most important economic coastal fishery activities in Mexico. As for other bivalve molluscs, its sustainability is based on healthy populations, and additional information on current reproductive cycles, will reinforce local management strategies. The objective of this study was to evaluate the effect of temperature and salinity on the gonadal development stages in both sexes and in two size groups (40-60 mm and ≥ 61 mm) of <em>C. virginica</em> from Tamiahua Lagoon, Gulf of Mexico. Monthly surv

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