نتایج جستجو برای: 42 d priod also
تعداد نتایج: 2909477 فیلتر نتایج به سال:
Use of cottonseed meal in poultry diets has been avoided in large part because of fear of gossypol toxicity. Gossypol exists naturally as a mixture of 2 enantiomers that exhibit different biological activities. Two experiments were conducted to determine the relative toxicity of gossypol enantiomers on broilers. In the first experiment, 3-d-old broilers were fed a standard diet containing 0, 10...
The aim of this study was to estimate genetic parameters for BW in meat quail at different ages. A total of 24,382 weight records from 3,652 quail, born between 2009 and 2011, were evaluated. Weekly BW was measured from hatch until 42 d of age. The genetic parameters were estimated by the restricted maximum likelihood method using a multivariate animal model. Heritability of BW ranged from 0.03...
introduction:vitamin d has been suggested to play a considerable role in the function of the immune system in various infectious, inflammatory, and autoimmune conditions. otitis media with effusion (ome), defined as the presence of non-purulent fluid within the middle ear without signs or symptoms of suppurative otitis media, has a number of inflammatory predisposing factors. this study was des...
Broilers fed diets with reduced amino acid levels may be limiting in isoleucine. Because research addressing daily Ile needs for broiler immunity is sparse, Ile responses for immunity in female broilers were evaluated in 2 experiments in broilers from 30 to 42 d of age. Cellular and humoral immunity were evaluated in diets limiting in Ile and diets varying in Ile from deficient to adequate. Pen...
severe congenital neutropenia (scn) is a rare primary immunodeficiency disease. different genes are found to be associated with scn, including ela2, hax1, was, gfi1, g-csfr and g6pc3. the aim of this study was to find different gene mutations responsible for scn in iranian patients. twenty-seven patients with scn referred to immunology, asthma and allergy r...
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