نتایج جستجو برای: two birds were slaughtered for carcass evaluation results showed that zilpaterol hydrochloride supplementation improved feed conversion ratio fcr p
تعداد نتایج: 13000670 فیلتر نتایج به سال:
AIM The present experiment was conducted to study the effect of post hatch dietary fat supplementation on performance of broiler chicken. MATERIALS AND METHODS A total of 120 day-old Ven Cobb broiler chicks were randomly assigned to 4 treatment groups of 30 chicks in each (three replicates of 10 birds/treatment). The trial lasted for 35 days. The experimental design was a completely randomize...
An experiment was conducted using 200 beef carcasses to evaluate the effects of feeding zilpaterol hydrochloride with or without monensin and tylosin on carcass cutability and meat sensory variables. The experiment was conducted using a randomized complete block design with treatments arranged as a 2 (no zilpaterol vs. zilpaterol) x 2 (monensin and tylosin withdrawn vs. monensin and tylosin fed...
Several studies have shown that feeding of an energy-dense diet over short periods to cull cows could be profitable in terms of increased saleable yield and improved carcass conditions. Although the application of growth promoters, such as anabolic implants and beta agonists, in finishing of cull cows have been recorded, there is no conclusive evidence as to the timing and duration of beta agon...
An experiment was conducted to evaluate the effect of form and particle size of feed supplemented with L- threonine on growth performance, carcass characteristic and blood biochemical parameters of broiler chickens. The experimental design was a 2 × 2 × 2 factorial arrangement of treatments evaluating two feed forms (pellet or mash), two feed particle sizes (fine or course), and two inclusion r...
an experiment was conducted to evaluate the effect of early feed restriction on performance and serum thyroxin concentration of broiler chicks. the experiment was designed in a 2×2 factorial with 5 replicates of floor pens with 12 male or female chicks in each. 240 male and/or female day-old chicks of a commercial strain (hybrow) were wing banded, weighed and randomly allocated to two treatment...
This experiment was conducted to evaluate the effects of thyme essential oil and enzyme supplementation corn/wheat based diets on performance, carcass traits blood metabolites in broilers. carried out with 432 Ross–308 broilers as factorial arrangement 36 unites (12 birds per each replicate) a completely randomized design from 1 up 42 days. Result’s showed that basic ration type meal have stati...
Day-old male broiler chicks were randomly assigned to 32 floor pens in a completely randomized block design and grown to 6 wk of age. Birds in experiment 1 were fed 1 of 2 basal diets supplemented with or without a protease containing feed additive, Versazyme (VZ). The 4 treatments were 1) control (C), a corn-soybean meal diet that contained 95% of amino acids recommended by NRC except for thre...
The purpose of this research was to evaluate the effect of early life nutrient restriction and subsequent intermittent lighting schedule on performance in broiler. In a factorial experiment, the effect of three levels of feeding regimes and two levels of lighting schedule were investigated using 480 day-old male Hubbard chicks. The broiler chickens were randomly distributed over two rooms consi...
One hundred and fifty (150) Anak-2000 day-old broiler chicks were used to investigate the effect of toasted white sesame seed meal (TWSSM) as a source of methionine on growth performance, carcass characteristic, haematological and biochemical indices of broiler finisher chickens. The chicks were randomly assigned to five dietary treatments consisting of three replicates of ten chicks per replic...
background: coccidiosis is recognized as the parasitic disease that has the greatest economic impact on poultry production. modern poultry production is largely dependent upon anticoccidials. objectives: the aim of the present study was to determine and compare the efficacy of two chemical anticoccidials (clopidol and diclazuril) on oocyst shedding and their probable effects on growth performan...
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