Open Access. Powered by Scholars. Published by Universities.®
Articles 1 - 3 of 3
Full-Text Articles in Animal Sciences
Fertility Of Semen Used In Commercial Production And The Impact Of Sperm Numbers And Bacterial Counts, D. L. Reicks, Donald G. Levis
Fertility Of Semen Used In Commercial Production And The Impact Of Sperm Numbers And Bacterial Counts, D. L. Reicks, Donald G. Levis
Department of Animal Science: Faculty Publications
The objective was to monitor sperm counts and bacterial presence on randomly pooled semen doses over 3 years and to determine effects on the farrowing rate and total born in two large farm systems, each serviced by its own boar stud. Sperm counts were divided into increments of 0.5 × 109 for data analysis. There was no effect of sperm count or the presence of bacteria on farrowing rate (n = 9502 observations). Furthermore, based on 7311 observations, there was no effect of the mere presence of bacteria on total born, but sperm count had a significant effect …
Utilization Of Soybeans Or Corn Milling By-Products In Beef Heifer Development Diets, H. L. Harris, Andrea S. Cupp, A. J. Roberts, Richard N. Funston
Utilization Of Soybeans Or Corn Milling By-Products In Beef Heifer Development Diets, H. L. Harris, Andrea S. Cupp, A. J. Roberts, Richard N. Funston
Department of Animal Science: Faculty Publications
Whole raw soybeans (SB), wet corn gluten feed (WCGF), and corn dried distillers grains (DDG) are sources of protein in heifer development rations. The objectives of this study were to compare puberty status before synchronization of estrus, response to synchronization, and AI and final pregnancy rates in heifers developed on diets containing SB, WCGF, or DDG that were formulated to be similar in energy and CP. These ingredients vary substantially in fat content, which may affect reproductive performance. Rate of gain during the feeding period and post-AI performance were also compared. In a preliminary experiment, 104 crossbred heifers were fed …
Reproductive Health Of The Florida Flock Of Introduced Whooping Cranes, Marilyn G. Spalding, Martin J. Folk, Stephen A. Nesbitt
Reproductive Health Of The Florida Flock Of Introduced Whooping Cranes, Marilyn G. Spalding, Martin J. Folk, Stephen A. Nesbitt
Proceedings of the North American Crane Workshop
We examined the reproductive parameters of the introduced non-migratory flock of whooping cranes in Florida. Of 289 cranes introduced, 67 males and 65 females survived at least 3 years. The first behavioral pairs appeared in 1995, and eggs were first laid in 1999. In total, eggs were laid in 47 nests, 17 chicks hatched, and 4 young fledged by 2005. Severe drought conditions through 2001 were thought to be the reason for low reproductive nest success. In 2003 nesting conditions improved and 71% of nests with eggs, hatched chicks. During the next 2 years, with continued wet conditions, the proportion …