Considerations for Using Natural Service with Estrous Synchronization Programs [0.03%]
关于发情控制方案中自然配种的考虑因素
George A Perry
George A Perry
Estrous synchronization, coupled with natural service, provides the benefit of female cows conceiving early, but there are an increased number of females expressing estrus in a short period of time. Thus, considerations need to be made for ...
Vitor R G Mercadante,Graham Cliff Lamb
Vitor R G Mercadante
The article discusses the importance of reproductive biotechnologies, including artificial insemination and fixed-time artificial insemination (TAI), in beef cow-calf operations. The use of TAI improves cow-calf productivity and profitabili...
Leonardo F C Brito
Leonardo F C Brito
This manuscript provides an overview of the effects of nutrition during different stages of bull sexual development. Nutrition during the prepubertal period can modulate the hypothalamic GnRH pulse generator. Increased nutrition results in ...
Joseph C Dalton
Joseph C Dalton
Artificial insemination (AI) is an effective strategy to distribute semen from elite sires and improve the genetics of a herd. Commercial studs provide a fertile semen product to their customers. Consequently, the maintenance of sire fertil...
Francisco Peñagaricano
Francisco Peñagaricano
Current evidence suggests that dairy bull fertility is influenced by genetic factors, and hence, it could be managed and improved by genetic means. There are major mutations that explain about 4% to 8% of the observed differences in concept...
Robert J Van Saun
Robert J Van Saun
Trace mineral nutrition of sheep often focuses on their greater susceptibility to copper toxicosis due to a lesser biliary excretion ability compared with other ruminants. Our understanding of sheep trace mineral requirements has improved f...
William S Swecker Jr,Robert J Van Saun
William S Swecker Jr
Robert B Corbett
Robert B Corbett
Veterinarians are often called upon to diagnose health-related issues on the farm that may be related to trace mineral deficiencies or toxicities. Trace mineral feeding rates are often not available due to the proprietary nature of the trac...
Common Toxicosis [0.03%]
常见中毒性疾病
John P Buchweitz,Rachel Sheffler,Birgit Puschner
John P Buchweitz
Veterinarians are often called upon to diagnose health-related issues on the farm that may be related to trace mineral deficiencies or toxicities. Trace mineral feeding rates are often not available due to the proprietary nature of the trac...
John J Wagner,Lily N Edwards-Callaway,Terry E Engle
John J Wagner
Trace minerals and vitamins are essential for optimizing feedlot cattle growth, health, and carcass characteristics. Understanding factors that influence trace mineral and vitamin absorption and metabolism is important when formulating feed...