Effect of sexed semen on different production and functional traits in German Holsteins [PDF]
Veterinary and Animal Science, 2020 The aim of this study was to analyze possible effects of semen type (conventional vs. female sexed) and calf sex on fertility and production traits. For this purpose, field data of German Holstein heifers in Lower Saxony were evaluated.Sexed semen was ...
Jens Tetens, Sophie Diers
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A Perspective on the Use of Sexed Semen to Reduce the Number of Surplus Male Dairy Calves in Ireland: A Pilot Study [PDF]
Frontiers in Veterinary Science, 2021 The production of surplus male offspring illustrates a socioethical concern in the dairy industry. In this article, we highlight the animal health and welfare implications of production outputs for surplus dairy calves, namely veal production, dairy calf
Agnese Balzani +2 more
doaj +2 more sources
Economic opportunities for using sexed semen and semen of beef bulls in dairy herds [PDF]
Journal of Dairy Science, 2017 Dairy farmers can increase the number of dairy heifer calves born in their herd by using sexed semen. They can reduce the number of both dairy bull and heifer calves by using beef semen. Long before sexed semen became commercially available, it was believed that it would provide opportunities for increasing genetic level in both herds and populations ...
A C Sørensen +2 more
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Update on sexed semen technology in cattle
Animal, 2014 The technology in current use for sexing sperm represents remarkable feats of engineering. These flow cytometer/cell sorters can make over 30 000 consecutive evaluations of individual sperm each second for each nozzle and sort the sperm into three ...
G.E. Seidel, Jr
doaj +3 more sources
Applications and cost benefits of sexed semen in pasture-based dairy production systems
Animal, 2014 Sexed semen technology is now commercially available in many countries around the world, and is primarily used in dairy cattle breeding. Sperm are sorted by flow cytometry on the basis of a 4% difference in DNA content between sperm containing X and Y ...
Stephen Butler +2 more
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Field evaluation of sexed and conventional semen in Holstein–Friesian cows: Linking semen quality with fertility and calf sex ratio across climatic zones [PDF]
Veterinary WorldBackground and Aim: Sexed semen is increasingly used in dairy breeding programs to enhance herd productivity by increasing the proportion of female calves. However, concerns remain regarding possible trade-offs between semen processing, post-thaw quality,
Putri Utami +6 more
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Intensified use of TAI and sexed semen on commercial farms. [PDF]
Anim Reprod, 2018 The livestock sector has achieved many technological advances, which have resulted in continued improvements in animal production systems and in the reproductive efficiency of herds. The associated use of reproductive biotechnology and genetic improvements combined with adequate sanitary and nutritional management are essential conditions for ...
Marques MO +4 more
europepmc +3 more sources
Exploring the Impact of Sexed Semen on the Structure of the Dairy Industry [PDF]
Journal of Dairy Science, 2008 Widespread commercial application of sexed semen is expected within the next decade because of continued improvements in fertility of sexed semen and sorting capacity. The objective of this study was to explore the potential impact of widespread application of sexed semen on the structure of the dairy industry in the United States. Historically, female
, J Fetrow
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Fertilization rate of crossbreeding cattle using sexing and conventional semen in different seasons in South Papua [PDF]
Journal of Advanced Veterinary and Animal ResearchObjective: Fertilization rate of artificially inseminated cows using sexed and conventional semen in different seasons in South Papua. Materials and Methods: Eighty crossbred cows aged 4–4.5 years with body condition score 3.8 were divided into groups A
Nurcholis Nurcholis +3 more
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Analysis of kinetic parameters of sexed Holstein-Friesian bull spermatozoa using Percoll density gradient centrifugation with computer-assisted sperm analysis [PDF]
Veterinary WorldBackground and Aim: Artificial insemination (AI) is a key biotechnology for improving dairy cattle populations, offering genetic enhancement and increased milk production.
Putri Utami +7 more
doaj +2 more sources