Sperm Defects
Mostrando 1-12 de 68 artigos, teses e dissertações.
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1. Storage of boar semen at 16-18 °C in the long-term commercial extender prepared with deionized water or nanowater
Abstract The aim of this study was to assess the usefulness of nanowater (NW; water declusterized using cold plasma treatment) as a diluent for a commercial boar semen extender during the 15-day storage (Days 1 to 15) at 16-18 °C. Ejaculates collected from 8 boars were subjected to the standard evaluation and then diluted in the extender prepared with deion
Anim. Reprod.. Publicado em: 25/11/2019
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2. Use of testicular tone and echogenicity in identifying boars with low sperm quality
RESUMO O estudo objetivou avaliar o uso de características testiculares para identificar reprodutores com baixa qualidade de morfologia espermática. A consistência (escore de 1 a 5), o tônus por tonometria (mm), a ecogenicidade e a heterogeneidade do parênquima testicular por ultrassonografia (pixel) foram avaliados em 402 machos suínos maduros (18,5 m
Arq. Bras. Med. Vet. Zootec.. Publicado em: 10/10/2019
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3. Parâmetros reprodutivos de touros Nelore (Bos taurus indicus) criados a pasto, em de diferentes faixas etárias
RESUMO Este estudo teve o objetivo de demonstrar o efeito da idade sobre as características de circunferência escrotal, cor de pelagem e qualidade seminal, desde a puberdade até após a maturidade sexual. Foram utilizados dados de 6607 exames andrológicos de touros da raça Nelore criados a pasto. Os animais eram de diferentes faixas etárias, variando d
Arq. Bras. Med. Vet. Zootec.. Publicado em: 06/06/2019
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4. Biochemical and seminal parameters of lambs fed palm kernel cake under grazing system
ABSTRACT This study aimed to assess the effects of palm kernel cake on semen quality and biochemical parameters of Santa Inês lambs. A total of 40 animals with 24.10±2.72 kg body weight and five months old were assigned in a completely randomized design into four groups and 10 replicates. The animals were subjected to four levels of palm kernel cake (0, 15
R. Bras. Zootec.. Publicado em: 2017-08
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5. Impact of feeding cottonseed coproducts on reproductive system of male sheep during peripubertal period
ABSTRACT Cottonseed coproducts contain gossypol which can have specific effects upon the male reproductive system. We evaluated the reproductive development of male lambs close to puberty fed on three cotton coproducts. Twenty-four 5-month old male lambs received four diets: 20 % of dry matter intake of whole cottonseed (WCS), high oil cottonseed meal (CSC),
Sci. agric. (Piracicaba, Braz.). Publicado em: 2016-12
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6. Semen quality characteristics of Koekoek breeder cocks influenced by supplemental inclusion levels of onion and garlic mixture at 35-41 weeks of age
ABSTRACT An experiment was conducted to determine the effect of varying dietary supplemental inclusion levels of onion and garlic mixture on semen quality characteristics of Koekoek breeder cocks aged 35-41 weeks. The experimental diets were isocaloric and isonitrogenous but with different supplemental inclusion levels of onion and garlic. A complete randomi
R. Bras. Zootec.. Publicado em: 2016-08
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7. Treatment of infertility in women with polycystic ovary syndrome: approach to clinical practice
Polycystic ovary syndrome represents 80% of anovulatory infertility cases. Treatment initially includes preconception guidelines, such as lifestyle changes (weight loss), folic acid therapy to prevent the risk of fetal neural tube defects and halting the consumption of tobacco and alcohol. The first-line pharmacological treatment for inducing ovulation consi
Clinics. Publicado em: 2015-11
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8. Ovopel and Carp Pituitary Extract as Spawning Inducers in Males of the Amazon Catfish Leiarius marmoratus (Gill, 1970)
The objective of this study was to evaluate Ovopel and carp pituitary extract as spawning inducers in the males of the Amazon catfish L. marmoratus. The following treatments, applied in a single dose, were studied: 0.2, 0.4 and 0.6 Ovopel pellet/kg live weight, and 2.5 mg carp pituitary extract/kg live weight. Each treatment was repeated four times. No signi
Braz. arch. biol. technol.. Publicado em: 2014-12
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9. Viability of bull spermatozoa collected from the epididymis stored at 18-20°C
The aim of this study was to evaluate the viability of bull spermatozoa collected from the cauda epididymis stored at 18-20°C, which were compared with semen collected by electro-ejaculation method and preserved at 5°C. Ten pairs of testes from Tabapuã bulls were removed by orchiectomy and stored for 6 (G6), 12 (G12), 18 (G18), 24 (G24) and 30 (G30) h at
Braz. arch. biol. technol.. Publicado em: 2013-10
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10. Caracterização do sêmen, do plasma seminal e concentração sérica de testosterona em cervo sambar (Cervus unicolor) em cativeiro na primavera / Characterization semen, of seminal plasma and concentration serum testosterone in sambar deer (Cervus unicolor) in captivity in the spring
The objective of this study was to evaluate the framework sperm and protein seminal plasma and endocrine profile in deer bred in captivity. Four males aged between 12 and 36 months were evaluated. In four times at intervals of seven days, gave the weight (60.5 to 89.0 kg) and body mass index (93.07 kg/m2 to 126.56 kg/m2). There were four semen samples per an
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 20/09/2012
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11. Comportamento sexual, parâmetros seminais e diluição pós-congelamento de sêmen de jumentos (Equus asinus) da raça Pêga / Sexual behavior, seminal parameters and dilution after freezing Pêga breed donkeys (Equus asinus) semen
The aim of this study was to elucidate aspects of asinine behavior from the description of various collections using an artificial vagina and relate this behavior with the seminal parameters. We evaluated also the availability of the formulation of the diluent T2-94 plus dimethylformamide in the protection of sperm cells during cryopreservation of semen from
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 07/03/2012
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12. Leptin and insulin in the seminal plasma of zebu bulls in peripuberty
In order to determine the profile of leptin and insulin values in seminal plasma and their correlations with sperm patterns during the peripuberty, a total of 16 crossbred Gyr dairy bulls were monitored from 60 days before to 60 days after puberty, separated into two groups, early and regular, according to the onset of puberty. Hormone values were determined
Revista Brasileira de Zootecnia. Publicado em: 2012-04