Author : Jonathan F. Bader
Publisher :
ISBN 13 :
Total Pages : 174 pages
Book Rating : 4.:/5 (561 download)
Book Synopsis Management Practices to Optimize Reproductive Efficiency in Primiparous and Multiparous Suckled Beef Cows by : Jonathan F. Bader
Download or read book Management Practices to Optimize Reproductive Efficiency in Primiparous and Multiparous Suckled Beef Cows written by Jonathan F. Bader and published by . This book was released on 2003 with total page 174 pages. Available in PDF, EPUB and Kindle. Book excerpt: Previous work from our laboratory suggests that prepartum supplementation with whole soybeans (WSB) improves first service conception rate without affecting body condition score or estrous cyclicity status prior to initiation of estrus synchronization protocols in postpartum beef cows. The objective of the first experiment was to examine the effects of prepartum lipid supplementation to superstimulated multiparous suckled beef cows and subsequent results on embryo quantity and quality. There was no difference between treatments in quantity or quality of embryos recovered. These findings suggest that prepartum supplementation of WSB to superstimulated multiparous suckled beef cows does not affect the quantity and quality of embryos recovered. Our research has also focused on estrus synchronization and facilitating the use of fixed-time artificial insemination (AI) in beef cows. The second experiment was designed to compare pregnancy rates of postpartum beef cows resulting from fixed-time AI and after synchronization of estrus with either the 7-11 Synch or MGA ® Select protocols. The results from this experiment indicate that estrus synchronization with 7-11 Synch or MGA ® followed by fixed-timed AI (GnRH at AI) result in comparable pregnancy rates in postpartum beef cows. Both protocols may be effectively utilized by producers for fixed-time AI.