نتایج جستجو برای: performance broiler chickens
تعداد نتایج: 1077064 فیلتر نتایج به سال:
This experiment was conducted to evaluate the effect of different levels of Satureja Hortensis essence on performance, carcass characteristics and immune response of broiler chickens . 220 one day old Ross 308 chicks were used in completely randomized design with 20 experimental units with 4 treatments, 5 replicates and 11 chicks in each replicate for 42 days. The dietary treatments consisted...
Thermal conditioning of chicks results in improvements in performance and thermotolerance at marketing age. Conditioning has been found to be a sensitive process, dependent on age and the temperature used. The objective of this study was to assess the optimal timing and temperature for the conditioning processes. Six separate trials were conducted on male broiler chickens: the first two aimed t...
With attention to quality variations in commercial Dicalcium phosphates (DCPs) and their P bioavailability, aim of this study was to comparison of DCPs purchase from different Iranian factories in broiler grow performance. 256 male chickens (28-day old) were randomly selected for this experiment. 8 chickens with approximately same weight were placed in per cage. The rations were formulated acco...
s of papers 57 POSTERS Environment and Management 236 Effects of feeding blends of grains naturallycontaminated with Fusarium mycotoxins on immune parameters of broiler chickens. H.V.L.N. Swamy*1, T. K. Smith1, N. A. Karrow1, H. J. Boermans1, and A. E. Sefton2, 1University of Guelph, Guelph, ON, Canada, 2Alltech Biotechnology Center, Nicholasville, KY. There are contradictory literature reports...
This research was conducted to compare the effects of two medicinal plants (peppermint and aloe vera) and antibiotic growth promoter on ileum microflora population and growth performance of broiler chickens. In this experiment, 375 one-day old male broiler chickens (Ross 308) were used on a completely randomized design with 5 dietary treatments which were replicated 5 times with 15 birds per re...
The present communication deals with the study of seasonal prevalence of parasitic helminths in broiler chickens from Marathwada region of Maharashtra. The study was conducted during, annual cycle June 2012 to May 2013 from different sampling station and different season to estimate the seasonal prevalence of parasitic helminths. For this study annually 279 broiler chickens were randomly select...
Bacterial chondronecrosis with osteomyelitis (BCO) is a common cause of lameness in commercial broiler chickens worldwide. BCO represents substantial production loss and welfare issues of chickens. The bacterial species or communities underlying BCO pathogenesis still remain to be fully characterized. To gain insights on blood microbiota in broilers and its potential association with BCO, blood...
The study was carried out to evaluate the effects of complete replacement of maize with two varieties of guinea corn and two varieties of millets on the growth performance and nutrient retention in broiler chickens. Five isonitrogenous and isocaloric diets for the broiler starter (23.5% CP; 2800 kcal/ME) and finisher (21.5% CP; 2900 kcal/ME) phases were formulated. Diet 1 consisted on a maize b...
Mycotoxins pose an important danger to human and animal health. Poultry feeds are frequently contaminated with deoxynivalenol (DON) mycotoxin. It is thus of great importance to evaluate the effects of DON on the welfare related parameters in poultry industry. In the present study, the effects of contamination of broiler diet with 10 mg DON/kg feed on plasma corticosterone and heterophil to lymp...
The objective of this study was to determine if a diet supplemented simultaneously with vitamins C and E would alleviate the negative effects of heat stress, applied between 28 and 42 days of age, on performance, carcass and meat quality traits of broiler chickens. A total of 384 male broiler chickens were assigned to a completely randomized design, with a 2×3 factorial arrangement (diet with o...
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