نتایج جستجو برای: 14 and 21 days of age decreased daily weight gain and feed intake significantly p
تعداد نتایج: 24281699 فیلتر نتایج به سال:
This experiment was conducted in a completely randomized design with five treatments and four replications. There were 15 chicks in each replication during the first 30 days and 10 chicks from day 30 to the end of experiment. Diets were control (without probiotic and dry whey) and levels 500 and 750 gm/ton probiotic, and each level contained two diets with and without %2 dry whey. Daily weight ...
the effects of methanolic extract and leaf powder of artemisia annua were studied on performance, cellular and humoral immunity in 240 cobb broiler chicks in a completely randomized design. control group did not receive any treatment. the chicks in the second and third groups were fed with feed which contained 2000 and 4000 ppm plant extract in diet and in the groups 4, 5 and 6 chicks received ...
this study was conducted to investigate the effect of0 (control), 0.5, 1, 1.5 and 2 ml/l of shirazi thyme aqueous extract in drinking water on performance and immune response in broilers. two hundred one- day- old broiler chicks (ross 308) were allocated to five treatments with four replicates and 10 birds per cage in a completely randomized design. daily feed intake, daily body weight gain and...
this study was carried out to evaluate the impacts of organic (sel-plex® selenium yeast) and inorganic (sodium selenite) selenium and vitamin e (d1-α-tocopheryl acetate) on performance and carcass characteristics in broiler chickens. the effect of two types of house temperature and six treatments of feed additives were investigated in a 2×6 factorial experiment at 56 days period with 960 commer...
In order to investigate the effect of different levels of rapeseed meal on performance and content of triiodothyronine (T3), thyroxine (T4) and thyroid stimulating hormone (TSH) in broiler chickens’ blood, 640 1-d-old Ross male broiler chickens were studied through a 4 × 2 factorial arrangement including 4 levels of rapeseed meal (RSM) (0, 5, 10 and 15 percent) and two levels of enzyme (0 and 0...
twenty male raini goats with an average live weight of 30 ± 2.5 kg and 18 month of age. ,were used in a completely randomized design with 4 experimental diets and 5 replications to study effect of different levels by-pass(udp) protein(2.75, 4.86, 5.91 and 6.97 percent in dry matter) on growth and carcass characteristics. metabolismable energy (me) level of the all diets were similar (10.04 mj m...
The effects of methanolic extract and leaf powder of Artemisia annua were studied on performance, cellular and humoral immunity in 240 Cobb broiler chicks in a completely randomized design. Control group did not receive any treatment. The chicks in the second and third groups were fed with feed which contained 2000 and 4000 ppm plant extract in diet and in the groups 4, 5 and 6 chicks received ...
an experiment was conducted to evaluate the effect of feed restriction (fr) and meal feeding (mf) on performance, carcass characteristics and related parameters to ascites in ross 308 male broiler chickens. five dietary treatments were 1) the control (ad libo. feeding), 2 )feed restriction from 7 to 14 days (fr14), 3) feed restriction from 7 to 21 days (fr21), 4) meal feeding from 7 to 14 days ...
A feeding trail was conducted to evaluate the effects of diets contaminated with Aflatoxin B1 (AFB1) on the performance and blood enzymes of broiler chickens. In a randomized complete-block design with 4 blocks and 4 treatments, 112 day-old male broiler chicks were divided into 16 groups, 7 chicks per. Treatments consisted of three levels of AFB1 in starter diet (0.4, 0.8, and 1.2 ppm) along wi...
The effect of dietary protein level and feed restriction on performance, body temperature and hematological values was evaluated, using Ross 308 broiler chicks under heat stress. For this purpose, three dietary treatments were fed to broilers during 21 to 42 days of age. Two treatments consisted of diets with protein levels recommended by NRC, 1994 and 85% of NRC recommendation and were fed ad-...
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