Results 21 to 30 of about 1,088 (254)
Animal, 2012 Stochastic simulation was used for studying the impacts of sexed semen on genetic progress and reproductive performance of dairy cows. Three strategies were compared: WSS (use unsexed semen in cows and heifers), SSH (use sexed semen in heifers and ...
S. Khalajzadeh +2 more
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Correlation between fertilization and artificial insemination in Holstein bulls [PDF]
Animal Bioscience, 2021 Objective Owing to the lack of a breeding index for efficient and quick fertility evaluations of Holstein bulls when using traditional or genome-wide detection methods, this study aimed to determine whether in vitro fertilization (IVF) could be used as ...
Wei Sun +11 more
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The Economics of Sexed Semen in Dairy Heifers and Cows
EDIS, 2009 AN214, a 13-page fact sheet by Albert De Vries, summarizes the recent literature on sexed semen use in dairy heifers and cows and evaluates the economics of the use of sexed semen in heifers and cows. Includes references.
Albert De Vries
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Bovine sperm sex‐selection technology in Japan
Reproductive Medicine and Biology, 2019 Background In Japan, Livestock Improvement Association of Japan started commercially producing sexed bovine semen 10 years ago, and sexed bovine semen is currently used for the artificial insemination (AI) in the farms.
Yousuke Naniwa +3 more
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, 2023 Improving the genetic value of dairy and beef animals initially through traditional methods later improved by new technology. Artificial insemination plays a key role in improving dairy herds, as it requires the selection of an elite bull with good genetic potential and semen free of various diseases.
openaire +2 more sources
Journal of Animal Reproduction and Biotechnology, 2014 Sexed semen is commonly used for the production of calves of the desired gender. Gender selection is important in animal production industries. For example, female cattle are required for the dairy industry while males are preferred in the beef cattle ...
Hyang-A Jeon +9 more
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Revista Brasileira de Zootecnia, 2009 Desenvolveu-se um estudo de simulação estocástica com o objetivo de verificar as consequências do uso combinado de acasalamento dirigido e sêmen sexado em uma população de bovinos de corte sob seleção.
Haroldo Henrique de Rezende Neves +3 more
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PRODUCTION OF IN VITRO EMBRYO USING SEXED SPERM OF 5/8 GIROLANDO BULLS
Ciência Animal Brasileira, 2015 We evaluated the "in vitro" blastocyst rate production using bovine sexed semen. Semen from three bulls was used to verify the individual's semen variation, cleavage rates and embryo production.
Pábola Santos Nascimento +5 more
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Human semen quality and the secondary sex ratio
Asian Journal of Andrology, 2017 The aim of this study was to evaluate the association between semen quality and the secondary sex ratio (SSR), defined as the ratio of male to female live births. Our study cohort comprised 227 male partners who were enrolled prior to conception in Michigan and Texas between 2005 and 2009, and prospectively followed through delivery of a singleton ...
Jisuk Bae +4 more
openaire +3 more sources
Veterinary Medicine and Science, 2021 The use of sexed semen in dairy and beef farms ensures the production of animals of the desired sex, resulting in a reduction of costs and an improvement of environmental sustainability.
Joana Quelhas +5 more
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