نتایج جستجو برای: commercial poultry pens
تعداد نتایج: 158962 فیلتر نتایج به سال:
Ammonia (NH3) is an important trace gas species in the atmosphere that can have negative impacts on human, animal, and ecosystem health. Agriculture has been identified as the largest source of NH3, specifically livestock operations. NH3 emissions from a commercial dairy in California were investigated during June 2008. Cattle were held in open-lot pens, except for young calves in hutches with ...
A serological survey was conducted to detect avian pneumovirus (APV) antibodies in commercial poultry birds in Grenada using a commercially available enzymelinked immunosorbent assay (ELISA) kit. Sera were collected from 226 layers and 233 broilers. Age of the layers ranged from 12 to 18 months while that of the broilers ranged from 6 to 7 weeks. One hundred forty of the layers (61.9%) and 74 o...
Copyright: © 2017| Author (s), This is an open access article under the terms of the Creative Commons Attribution-Non-Commercial No Derivs License, which permits use and distribution in any medium, provided the original work is properly cited, the use is noncommercial and no modifications or adaptations are made. Incidence of mycotoxins is a major problem encountered by poultry industry as in m...
There is considerable global concern over the newly emergent H5N1 strain of avian influenza that has affected millions of domestic poultry flocks and resulted in 256 human cases and 152 deaths in humans. There has been little analysis of the general assumption that smallholder backyard poultry flocks are inherently at higher risk of highly pathogenic avian influenza (HPAI) than confined and com...
Newcastle disease virus (NDV) is a prototype member of avian paramyxovirus serotype 1 (APMV-1), which causes severe and contagious disease in the commercial poultry and wild birds. In this study, we report the results of phylogenetic analyses of recent NDVs isolated from Markazi province of Iran during a recent outbreak in the commercial broiler with respiratory signs and digestive system lesio...
The objective of this project was to examine the diversity of breast meat composition and quality traits among unique resource populations. Birds from 5 groups (inbred Leghorn, inbred Fayoumi, commercial broilers, F5 broiler-inbred Leghorn cross, and F5 broiler-inbred Fayoumi cross) were utilized. Contemporary stocks (broilers, inbreds, and crosses) were grown in a single house but in separate ...
The available energy of several poultry by-product meal products were determined by various experimental methods. It is imperative to determine the accurate available energy value for these products for proper diet formulation and product usage. Leghorn roosters and turkeys were tube fed the products for the assay based on the True Metabolizable Energy (TME) system. Three week old battery reare...
The inclusion of low phytate grains in poultry diets can reduce the phosphorus (P) content of poultry feces, but their influence on fecal P composition is not well established. To assess this, 100 male broiler chicks (21 days old) were fed dietary treatments based on either a wild-type barley or one of three low phytate mutant barleys with 59, 62 and 99% reductions in phytate P, compared with t...
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