The control of Salmonella in the poultry production chain combined with biosecurity measures is an important tool to maintain and guarantee sanitary status Brazilian flocks. aim this work was compare official laboratory data on molecular typification isolates from breeding flocks different states between 2016 2018 identify category most positive flocks, light current legislation. Surveillance s...

Increased mortality and problems with lameness were reported in Dutch broiler flocks from the year 2008 onwards. Therefore, a field inventory, including 10 affected broiler flocks, nine corresponding broiler breeder flocks and five hatcheries, was carried out. The onset of clinical signs (lameness and increased mortality) started at about 2 weeks of age. The flock mortality varied from 3.1 to 8...

l-carnitine as a water soluble derivative of lysine has a crucial biological role in lipid metabolism. present experiment was conducted to study the effect of l-carnitine supplementation into broiler and/or breeder diets on broilers' performance, blood related factors, carcass characteristics and immune system. l-carnitine was added to the broiler breeder's diets at levels of 0, and 6...

An experiment was conducted to compare the effect of selenium sources on performance, Se incorporation into certain poultry tissues (blood, liver and breast muscle) and eggs, hatchability, glutathione peroxidase activities in tissues and eggs in broiler breeder. Broiler breeder hens were allocated to six diet treatments factorially arranged with three selenium sources (Sodium selenite, Selenium...

An experiment was conducted to study the effect of broiler breeder feeding management practices on pullet performance, BW uniformity, and carcass traits during rearing (to 22 wk of age). At 3 wk of age, 1,200 Ross 308 breeder pullets were assigned to one of 5 treatments: 1) control: standard mash diet, fed daily; 2) high fiber: mash diet containing 25% lower nutrient density, fed daily; 3) scat...

salmonella enteritidis (se) is frequently isolated from poultry and humans. chicken meat and egg are two important sources of se infection for humans. this study was conducted to detect the se infection in iranian poultry farms using serological methods. a number of 8208 serum samples were provided from 171 poultry flocks (pullet, commercial layer, broiler breeder, layer breeder, grandparent br...

One of the most extraordinary results of selective breeding is the modern broiler chicken, whose phenotypic attributes reflect its genetic success. Unfortunately, leg health issues and poor walking ability are prevalent in the broiler population, with the exact aetiopathogenesis unknown. Here we present a biomechanical analysis of the gait dynamics of the modern broiler and its two pureline com...