To adjust breeding programs for local, commercial, and fancy breeds, to implement molecular (marker-assisted) breeding, a proper comprehension of phenotypic genotypic variation is sine qua non progress in animal production. Here, we investigated an evolutionary subdivision domestic chickens based on their variability using wide sample 49 different breeds/populations. These represent significant...

The aim of this study was to describe meat quality and carcass characteristics of the Padovana breed of chicken. The Padovana chicken is a historical fancy breed found in the Veneto region of Italy and produces meat that is typical to some local markets. The experiment reported here involved 60 chickens reared in an organic production system where housing was an indoor pen with access to a gras...

Three hundred 1-day old broiler chickens were used to assess the effects of Mucuna leaf meal (MLM) dietary supplementation on performance, haemato-biochemical indices, oxidative status and meat chickens. Five experimental supplemented diets formulated: diets: 1 (0% supplement), 2 (1.1 % OXYT), 3 (0.5% MLM), 4 (1.0 MLM) 5 (1.5% MLM). The final weight gain birds fed was higher (p < 0.05) than ...

The study aimed to evaluate the effect of supplementation an additive based on plant and spice extracts in broiler chicken diets productive performance, carcass yield, meat quality. 704 male chicks were distributed a completely randomized experimental design with 4 treatment, replicates 44 chickens each. consisted Diet 1: Control diet; 2: diet + antibiotic growth promoters (AGP); 3: vegetable (...

This study aims to compare anatomies of Madagascar chickens (indigenous race and Starbro strain). With 8,262 individuals of either indigenous races or Starbro strain chickens raised in a suburban environment, the weights of different pieces of cut as well as the live weights before slaughter were determined. Results showed that breast development presents a positive linear relationship with thi...

BACKGROUND The goal of our study was to evaluate the effects of different medicinal herbs rich in polyphenol (Lemon balm, Sage, St. John's wort and Small-flowered Willowherb) used as dietary supplements on bioaccumulation of some essential metals (Fe, Mn, Zn and Cu) in different chicken meats (liver, legs and breast). RESULTS In different type of chicken meats (liver, legs and breast) from ch...

Transgenic animal platforms for the discovery of human monoclonal antibodies have been developed in mice, rats, rabbits and cows. The immune response to human proteins is limited in these animals by their tolerance to mammalian-conserved epitopes. To expand the range of epitopes that are accessible, we have chosen an animal host that is less phylogenetically related to humans. Specifically, we ...

The effects of viral strain, viral dose, and age of bird at inoculation on subgroup J avian leukosis virus (ALV J) persistence, neutralizing antibody (VNAb) response, and tumors were studied in commercial meat-type chickens. Chickens were inoculated on the fifth day of embryonation (5 ED) or on day of hatch (DOH) with either 100 or 10,000 50% tissue-culture infective dose (TCID50) of one of thr...

High pathogenicity avian influenza viruses (HPAIV) have caused fatal infections in mammals through consumption of infected bird carcasses or meat, but scarce information exists on the dose of virus required and the diversity of HPAIV subtypes involved. Ferrets were exposed to different HPAIV (H5 and H7 subtypes) through consumption of infected chicken meat. The dose of virus needed to infect fe...