نتایج جستجو برای: livestock feed
تعداد نتایج: 85201 فیلتر نتایج به سال:
This paper provides an original account of global land, water, and nitrogen use in support of industrialized livestock production and trade, with emphasis on two of the fastest-growing sectors, pork and poultry. Our analysis focuses on trade in feed and animal products, using a new model that calculates the amount of "virtual" nitrogen, water, and land used in production but not embedded in the...
INTRODUCTION Large aggregations of birds concentrating around livestock feedyards during fall and winter months have been a common occurrence in many parts of the country (Besser et Extensive utilization of livestock feedyards by these flocking birds has been reported to result in economic losses to the feedyard operator due to feed consumption. In Colorado, seasonal feed losses to starlings ob...
The Extension Service, United States Department of Agriculture, funded a special project to approach development of extension materials for dairy farmers by systems analysis. Agricultural engineers created video tapes and publications on manure, feed handling, calf housing, and milking subsystems. Dairy scientists created slide-tapes and publications on controlling feed losses during harvest, s...
An abundance of agricultural by-products have been used to feed dairy and beef cattle in Taiwan, in order to reduce the cost of livestock production. Most farmers are not concerned about the nutrient value of agricultural by-products. They need to be educated on how to utilize by-products properly. Research to improve techniques of preservation and the efficiency of utilization of agricultural ...
Chelation is a bonding formed between a metal ion and legend. Chelating improves the absorption of the mineral from the digestive tract. The level of chelated minerals in livestock feeding is typically added at 25-30% of the total mineral in a feed. Chelated minerals have improvement in reproduction, health, soundness and growth. Natural feed with strong chelating properties includes dry melt r...
Livestock performance and feed efficiency are closely interrelated with the qualitative and quantitative microbial load of the animal gut, the morphological structure of the intestinal wall and the activity of the immune system. Antimicrobial growth promoters have made a tremendous contribution to profitability in intensive husbandry, but as a consequence of the increasing concern about the pot...
Feed efficiency (FE) is a very important trait in livestock industry. Identification of the candidate genes could be of benefit for the improvement of FE trait. Mouse is used as the model for many studies in mammals. In this study, the candidate genes related to FE and coat color were identified using C57BL/6J (C57) × Kunming (KM) F2 mouse population. GWAS results showed that 61 and 2 SNPs were...
The goal of this study was to evaluate survival of important viral pathogens of livestock in animal feed ingredients imported daily into the United States under simulated transboundary conditions. Eleven viruses were selected based on global significance and impact to the livestock industry, including Foot and Mouth Disease Virus (FMDV), Classical Swine Fever Virus (CSFV), African Swine Fever V...
Water is a vital but poorly studied component of livestock production. It is estimated that livestock industries consume 8% of the global water supply, with most of that water being used for intensive, feed-based production. This study takes a broad perspective of livestock production as a component of the human food chain, and considers the efficiency of its water use. Global models are in the...
In the current study area, livestock are an integral part of mixed farming system, and play very important roles as sources draught power, nutrition, cash income, employment poverty alleviation. However, feed shortage, especially during dry season, is most constraint to optimal productivity. This aimed investigate resources feeding practices, coping strategies with seasonal scarcity, identify m...
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