modern strains of broiler are highly susceptible to heart failure. heart related mortalities are observed predominantly in fast growing broiler chickens. the aim of this study was to investigate serotonin levels in ascitic and non ascitic broilers of three strains (ross, arbor acres plus and cobb). in this respect, a factorial test in crd method applied for the statistical analyses. in each of ...

this study was carried out to determine the effect of different levels of clove essential oil, as a natural growth promoter and probiotic on performance,carcass traits and serum components of broiler chickens. a total of 240 straight run day-old commercial broiler chicks (cobb 500) were distributed randomly into five groups. each group was subdivided into four replicates with 12 chicks each. th...

This experiment was conducted to determine the effect of different vegetable oil types on broiler energy expenditure, abdominal fat deposition and fatty acid profile of breast and thigh. A total number of 300 un-sexed day-old cobb 500 broiler chickens were used in a completely randomized design, consisted of five treatments (five different vegetable oil sources including soy, flaxseed, canola, ...

to calculate partial and total productivity of production factors in broiler farms in yazd province, 72 manufacturing units were selected based on simple random sampling method and their information and statistics were collected for one production period in the second half of 2013. to measure productivity, the cobb-douglas production function was estimated using classic and fuzzy regression met...

Two trials were conducted to determine the amino acid and protein requirements of broiler breeders at peak production. In trial 1, 32-wk-old Cobb 500 broiler breeders with similar BW were selected to determine the digestible amino acid requirement for daily product output (g of egg mass + g of BW gain/b/d) and feed conversion (g of feed/g of product) for Met, Phe, Arg, Ile, Lys, and CP in a 42-...

This article is the first in a series of manuscripts to evaluate nutritional rehabilitation in chickens as a model to study interventions in children malnutrition (Part 1: Performance, Bone Mineralization, and Intestinal Morphometric Analysis). Inclusion of rye in poultry diets induces a nutritional deficit that leads to increased bacterial translocation, intestinal viscosity, and decreased bon...

Antibiotics are the most widely injudiciously used drugs for therapeutic purposes throughout world. This study aimed to detect cephalexin residue after discriminate and indiscriminate administration of antibiotic in broiler. Eighteen broiler chicks, DOC (Cobb-500) were collected & reared up 31 days. The chicks randomly divided into three groups namely control group (Group-A), (Group-B) (Gro...

This experiment was carried out for a period of 4 weeks with 240 day old straight- run broiler (Cobb-500) chicks to investigate the effects of administering electrolytes in drinking water on the productive performance (live weight, body weight gain, feed consumption, feed conversion and water consumption) and to determine the economic impact of using electrolytes. The chicks were randomly distr...