Natural shading and productivity index of broiler chickens
نویسندگان
چکیده
منابع مشابه
Ochratoxicosis in Broiler Chickens:
This experiment was conducted to evaluate the effects of ochratoxin A (OTA) on the function and histology of the liver, kidney and bursa of broiler chickens fed OTA contaminated rations. Two hundred forty one-day-old male Ross broiler chicks were used, they were randomly divided into 3 dietary experimental groups of 80 birds and given rations containing 0 (control), 400 or 800 μg OTA/Kg feed. T...
متن کاملProventriculitis in broiler chickens: effects of immunosuppression.
Proventriculitis in broilers causes carcass condemnation when swollen proventriculi tear during evisceration. The cause of this proventriculitis is unknown, but several infectious agents have been associated with it. One such agent, infectious bursal disease virus (IBDV), has been implicated as a cause of proventriculitis, but a direct effect of this virus on the proventriculus has not been pro...
متن کاملDietary Levels of Potassium for Broiler Chickens
Three experiments were conducted to determine the nutritional requirements of potassium (K) for male Ross broiler chickens, from 8 to 21, 22 to 42 and 43 to 53 days of age. The following parameters were evaluated: body weight gain (BWG), feed intake (FI) and feed conversion ratio (FCR). In each experiment, a completely randomized experimental design was used, with six treatments (K levels), and...
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ژورنال
عنوان ژورنال: Engenharia Agrícola
سال: 2015
ISSN: 0100-6916
DOI: 10.1590/1809-4430-eng.agric.v35n3p601-605/2015