Objetive. To determine the effects of high temperature, the high humidity and the index on production performance in layer chickens supplemented with vitamins C and E. Materials and methods. The experiment was carried out from July 14th to August 15th. A total of 720 L33 layer chickens, 39 weeks old, were divided at random into four groups (180 birds/group), by replicates (n=4): Control Group) ...

The study was undertaken with a view to compare clinical and laboratory diagnoses of various bacterial diseases of poultry during the period from March 2009 to February 2010 in the laboratory of the Dept. of Microbiology and Hygiene, Bangladesh Agricultural University (BAU), Mymensingh. A total of 135 sick and dead chickens (47 broilers and 88 layers) were collected from 12 different poultry fa...

Gallibacterium, a gram-negative coccobacillus, is a genus of the Pasteurellaceae family with capability of infecting a wide range of avian host species. In 2003, Gallibacterium was selected instead of different previous names. Four different species has been recognized in Gallibacterium genus so far. Members of the genus can cause a wide range of pathological lesions, from upper respiratory tra...

This study investigated diarrheic broiler and layer chickens (<50 days; n=14) and pigs of three age groups (preweaned <30 days, weaned ≈30 to 60 days, and growing >60 days; n=64) for E. bieneusi genotypes in northeast China and evaluated the potential roles of chickens and pigs in zoonotic transmission of microsporidiosis. Two 45-day-old layer chickens in city Jixi, Heilongjiang province and on...

Aim: Chicken infectious anemia virus (CIAV) causes immunosuppression leading to serious losses in chickens. Though CIAV has been reported in commercial chickens from many countries of the world, no information is available on CIAV from Grenada. This paper reports the result of a serological survey of CIAV in layer and broiler chickens in Grenada. Materials and Methods: A total of 226 serum samp...

The experiments aimed to develop the inactivated Newcastle disease (ND) vaccine in the form of water in oil (WO) and water in oil in water (WOW) using palm oil, which is easily found in tropical countries, and to study the effect of vitamin E in the form of dl-α-tocopheryl acetate for improving the efficacy of inactivated ND vaccine prepared from palm oil. Two hundred and twenty, thirty five da...

The aim of this investigation was to detect and examine the distribution of the CD3–T lymphocyte cell population of the Bursa Fabricius in chickens experimentally infected with Eimeria tenella. Slices of archived samples of Bursa were examined using the of direct peroxidase (DP) method. CD3–T lymphocytes were detected with human anti-CD3 antibody. They were localized in the cortico-medullary la...

Short-chain fatty acids have been widely used as feed additives to control Salmonella in poultry. Data on the use of butyric acid in poultry are lacking. In this study, powder form and coated butyric acid were compared in their ability to reduce Salmonella colonization of ceca and internal organs shortly after infection of young chickens with Salmonella enteritidis. In the first trial, 4 groups...