Farzad Ghanbari; Taghi Ghoorchi; Parvin Shawrang; Hormoz Mansouri; Nour Mohammad Torbatinejad
Volume 17, Issue 1 , April 2015, , Pages 83-93
Abstract
This study was conducted to investigate the effects of doses of 25, 50 and 75 kGy of gamma ray (GR) and electron beam (EB) ionizing radiations on ruminal disappearance of amino acids (AAs) and protein subunits of canola meal (CM). The nylon bag technique was used for degradability trial. Three ruminally ...
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This study was conducted to investigate the effects of doses of 25, 50 and 75 kGy of gamma ray (GR) and electron beam (EB) ionizing radiations on ruminal disappearance of amino acids (AAs) and protein subunits of canola meal (CM). The nylon bag technique was used for degradability trial. Three ruminally fistulated Taleshi bulls were used for this aim. The disappearance trends of protein subunits for protein meal samples were determined using sodium dodecyl sulfate-polyacrylamide gel electrophoresis (SDS-PAGE). Irradiation decreased ruminal degradability of AAs (P<0.05). In this case, except for serine, tyrosine and glutamate, the effect of GR in reducing AAs degradability was more than the EB. Electrophoresis analysis identified the presence of cruciferin with four subunits in CM. In unirradiated CM, all four protein subunits of cruciferin were degraded after 8 h of rumen incubation. Doses of 25, 50 and 75 kGy of EB and GR preserved the protein subunits of cruciferin up to 16, 24 and 48 h, respectively. It can be concluded that processing with ionizing radiation of EB and GR decreases ruminal degradation of CM protein subunits of cruciferin and AAs. The effect of GR in reducing ruminal degradation of CM proteins is more than EB.
Golestan Golestani Milanloo; seyed davood sharifi; Akbar Yaghoub far; Ali akbar Khadem
Volume 13, Issue 2 , March 2012, , Pages 1-10
Abstract
This study was carried out to investigate the effects of Natuzyme Plus (a multi enzyme) in diets containing wheat and canola meal on broiler performance. A total of 336 day-old Arbor Acres broiler chicks were used in a completely randomized design with six treatments and four replicates. Experimental ...
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This study was carried out to investigate the effects of Natuzyme Plus (a multi enzyme) in diets containing wheat and canola meal on broiler performance. A total of 336 day-old Arbor Acres broiler chicks were used in a completely randomized design with six treatments and four replicates. Experimental diets were: 1 . Diet based on corn-soybean meal (control), 2 . Diet containing 30 precent wheat and 3 . Diet containing 30 percent wheat + 10 percent canola meal, which Natozyme was added (350 g/ton) to these diets to make diets containing enzyme (totally six treatments). Adding enzyme to diet containing wheat and canola meal increased significantly feed intake, weight gain and feed conversion ratio (FCR) at starter and overall rearing period (P< 0.01). Use of Natuzyme Plus in diet containing wheat and canola meal reduced significantly the relative weight of digestive organs in compared of same diets without enzyme. The results of this study indicate that the performance of broiler chickens fed the diets containing wheat and canola meal could be improve by supplementing with Natuzyme plus preparations.