Dairy Cattle-selection, Feeding and Management
نویسنده
چکیده
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 bibliography of nearly 2350 references. The book is suitable for use as a reference volume in college laboratories. Approximately 353 pages; 4 illustrations; 6 by 9; Probable price, $3.50
منابع مشابه
Development of Dairy Cattle Registration and Herd Management System
In order to meet the requirement of dairy cattle breeding and modern cattle farm management, the dairy cattle registration and herd management system was programmed with Visual FoxPro9.0, which can run on Windows9X/Me/NT/2000/XP, to fit the current implemented Canadian dairy cattle DHI recorders and 9-point linear comprehensive evaluation. Based on data collection and analysis of basic herd inf...
متن کاملCongress of Genetics Applied to Livestock Production Improving biological and economic aspects of production efficiency through genetic selection and genome - guided replacement management
Improving feed efficiency in dairy cattle is a costly and complex challenge, due to the difficulty in measuring individual animal feed intakes and the need to consider energy demands for growth, lactation, maintenance, health, and fertility. Research projects are underway in several countries to provide genomic breeding values for dry matter intake or residual feed intake of dairy bulls based o...
متن کاملLivestock Farming Systems and Cattle Production Orientation in Eastern High Plains of Algeria, Cattle Farming System in Algerian Semi-Arid Region
This study was an attempt to devise productive orientations of cattle herds in eastern high plains of Algeria. In this regard, 165 farms randomly identified were investigated. The selection of breeders was based to existence of cattle on the farm, and the farmer proposed to investigation must have at least two cows. The approach taken was to identify all systems adopted by farmers in a region t...
متن کاملEffect of Different Feeding Times on the Performance of Cross Bred Dairy Cattle during Summer Stress
The livestock sector in Pakistan occupies a unique position in the national agenda of economic development. The current study was conducted to evaluate a heat stress mitigation strategy through different feeding times on the performance i.e. milk yield, milk composition and physiochemical properties of milk in dairy cattle during the summer season. Twenty Holstein Friesian cows (HF) were random...
متن کاملGenetic Basis of Mastitis Resistance in Cattle
Mastitis is one of the most important diseases affecting production in dairy cattle. Control strategies against mastitis such as antibiotic therapy, vaccination, improvement of farm and feeding management have met with little success. Genetic variability of mastitis resistance is well established by several independent studies in different breeds of dairy cattle. Usage of somatic cell count or ...
متن کاملTrace Mineral Requirements for Dairy Cattle
A host of nutrients are needed by cattle to support functions associated with life, and to grow, reproduce, and nourish their offspring (i.e., produce milk). A vast amount of resources have been expended to quantify the amounts of specific nutrients needed to perform these function so that economically efficient diets can be formulated. Feeding diets that provide adequate, but not excessive, am...
متن کامل