Statistical Methods for Improving Sensitivity in Dairy Cattle Feeding Experiments

Improving Dairy Cattle Reproductive Performance

• A calving interval of 13.5 months is an achievable goal that will produce higher daily milk yield and higher milk yield over the length of the lactation. To achieve this goal average days to first service should be <80, yearly 21-day Pregnancy Rates should average >20% and culling for reproductive failure should not exceed 10%. • Management must set standard operating procedures for all aspec...

Dairy Cattle-selection, Feeding and Management

ORGANIC ANALYTICAL REAGENTS By JOHN H. YOE, Professor of Chemistry, University of Virginia, and LANDON A. BARVER, Director of Research, American Viscose Corporation. A comprehensive treatise on organic analytical reagents. It represents probably the first attempt to collect in one volume the data hitherto scattered throughout the literature. A glossary of reagents is included, and a bibliograph...

Automatic feeding systems for dairy cattle – potential for optimization in dairy farming

A survey carried out on 18 farms in Switzerland, Germany, Denmark and the Netherlands indicates current trends in cattle feeding. An increasing number of farms are relying on automatic feeding to ease their workload, save time and achieve flexibility. The farms surveyed were practical users of automatic feeding systems. There are various systems which permit the automation of feeding systems. A...

Composition and Feeding Value for Beef and Dairy Cattle

Considerations for Improving Feed Efficiency in Dairy Cattle

Intensive selection of sires is possible by using artificial insemination; coupled with accurate measurement of a potential sire’s genetic value, this has markedly improved genetics for easily measured traits like milk production and type traits. Increased milk production has in turn increased gross feed efficiency through dilution of maintenance. Additional genetic gains in feed efficiency wou...