نتایج جستجو برای: 270 turkeys
تعداد نتایج: 14755 فیلتر نتایج به سال:
The effects of hydralazine on aortic rupture, hemodynamics and aortic ultrastructure were studied in turkeys fed B-aminopropionitrile (BAPN). A mortality rate of 24% due to hemopericardium and internal hemorrhage in turkeys fed only BAPN increased to 91% when turkeys were fed both BAPN and hydralazine, despite a significant reduction in blood pressure after both drugs. Death rates among turkeys...
Wild turkeys, Meleagris gallopavo, are among the most ornamented birds in North America, displaying vividly coloured fleshy ornaments on their heads and bright, iridescent structural coloration in their plumage. We investigated the effect of experimental inoculation with coccidian parasites on the expression of iridescent structural coloration in yearling male turkeys. Prior to moult of ornamen...
Previous studies using zearalenone (ZEN) and fumonisins (FB) revealed alpha-zearalanol (?-ZOL) FB1 in the liver of turkeys chickens with no sign toxicity. The aim present study was to determine whether contamination persists after distribution a mycotoxin-free diet for several days. Turkeys broilers were fed 14 days containing respectively, 7.5 0.6 mg/kg FB ZEN, then 0, 2 or 4 diet. total ?-ZOL...
This study was conducted to determine the effect of sex and age on serum biochemistry parameters of turkeys (Meleagris gallopavo ). Forty healthy turkeys of three different age groups (4-8weeks old, 12-20weeks old and adults) were used. Statistical comparisons were made for differences in values between male and females and among different ages. Female turkeys had significantly (p<0.05) higher ...
Phytate phosphorus of plant ingredients is not substantially available to poultry because of the lack of endogenous phytase enzymes in their gastrointestinal tract. There are substantial differences among broilers, turkeys, and ducks in terms of plant P utilization. We studied whether the availability of P is different for two Phytase enzymes in turkeys. Finase and a New Phytase product develop...
Heat shock proteins of 70 kDa (HSP70) are a natural protector of the cell during heat stress through maintaining cell homeostasis and preventing proteins from denaturation, especially in stressed conditions. In addition, HSP70 widely influence growth and reproduction traits. The present study objected to identify polymorphisms in regions of promoter and part of exon 1 of HSP70 gene and their as...
Microscopic and radiographic observations, as well as ash, calcium, phosphorus, copper, manganese, and zinc concentrations, were evaluated from femora of 32- to 35-wk-old male turkeys from two different farms (A and B). Turkeys from Farm A were divided into birds with femoral fracture (AF) and without femoral fracture (ANF). Turkeys from Farm B did not have femoral fractures (BNF). In the mid-d...
Dietary furazolidone (500 ppm or higher) significantly slowed the growth of chicks fed either a conventional or a purified diet and of turkeys fed a conventional diet. Deaths were significantly increased in turkeys fed 500 ppm and in chicks fed 700 ppm in the purified diet. Ratio of heart to body weight was significantly increased by furazolidone in turkeys, but not in chicks. Furazolidone did ...
In the present study occurrence of turkey carcass alterations such as breast skin lesions, liver and swelling hock joint in turkeys reared organic farms was investigated at slaughterhouses Germany. The examinations included 1,860 carcasses 2 lines Kelly Broad Breasted Bronze(BBB) (540 toms 540 hens) British United Turkeys (Big 6 Test Product 7) (780 hens). results showed that lesions were rare ...
—In northern areas of their expanded range, information on Merriam’s turkeys (Meleagris gallopavo merriami) is lacking, specifically pertaining to wintering behavior and factors associated with winter habitat selection. Forest managers need detailed quantification of the effects of logging and other management practices on wintering habitats needed by Wild Turkeys and other wildlife. Therefore,...
نمودار تعداد نتایج جستجو در هر سال
با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید