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   Breeding & Genetics
 more...>Livestock>Beef Cattle>Breeding & Genetics>
Effects of Pasture Stocking Rate and Method on Cow-Calf Production
cattle

To determine the effectiveness of short-duration, rotational grazing systems for cattle in South Louisiana, a three-year study (Phase 1 of a six-year project), designed to evaluate pasture stocking methods and rates, was initiated in the spring of 1999 at the Iberia Research Station near Jeanerette.

Supplementation of Mature Crossbred Cows Fed Bermudagrass Hay During the Last One-third of Gestation
Document image

These data suggest that good quality hay fed free choice can meet nutrient requirements during the last one-third of gestation, a period when the nutrient requirements of the cow increase because of the growth of the fetus.

Using Sire EPDs in Cow-Calf Production
bulls

A large segment of the beef cattle industry is adopting expected progeny differences (EPDs) as a valuable selection tool in improving calf productivity.

A Compilation of Research Results Involving Tropically Adapted Beef Cattle Breeds
cover of research results of tropical adapted beef cattle breeds

The southern United States contains almost half of the nation's cow-calf population in the hot/humid Southeast and Gulf Coast areas. Even in more temperate areas of the United States, weaning productivity of Brahman x Bos taurus cows is virtually unequaled.

Effects of Breed Type, Creep Feeding and Growth Implants on Heifer Pre- and Postweaning Growth and Reproductive Performance
Effects of Breed Type, Creep Feeding and Growth Implants on Heifer Pre- and Post-Weaning Growth and Reproductive Performance
Based on these results, a cow-calf producer wishing to retain suitable heifers as herd replacements and sell the remaining heifers at weaning can reasonably consider implanting all heifer calves. High-protein creep, limit-fed to suckling heifer calves had no effect on pre-weaning, post-weaning, or reproductive performance in this study.
Estrus Synchronization Using MGA or Altrenogest in Crossbred Beef Heifers
Estrus Detection Patch on Heifers (HeatWatch)
Estrus synchronization had its humble beginnings in the 1940s when progesterone and pregnant mare serum gonadotropin were administered to cattle at varying stages of the estrous cycle to alter cyclicity. The objective of this study was to evaluate the effectiveness of altrenogest for estrus synchronization of crossbred beef heifers.
Rotational Crossbreeding of Beef Cattle: Weaning Weight per Cow Exposed and Cumulative Weaning Weight per Cow in Breeding Herd
Rotational Crossbreeding of Beef Cattle: Weaning Weight per Cow Exposed and Cumulative Weaning Weight per Cow in Breeding Herd
The purpose of this report is to compare the performance of two-, three- and four-breed rotational crossbreeding systems and straight-breeds for calf weaning weight per cow exposed and for cumulative weaning weight per cow entering the herd.
Animal Genetics Collected, Stored To Preserve Long-term Diversity
Although there’s not an imminent danger, some scientists say a widespread disease or bioterrorism attack could wipe out significant portions of the U.S. farm animal population. That's where the National Animal Germplasm Program comes in.
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