Aazam Mirheidari; Noor Mohamad Torbatinejad; Saeed Hassani; Pirouz Shakeri
Volume 20, Issue 4 , February 2019, , Pages 553-564
Abstract
Two experiments were conducted to assess the addition of pistachio by-product biochar (PBB) to lactatingIn first experiment, the effects of the addition of different levels (0, 0.5, 1 and 1.5% diet on dry matter basis, DM) ofPBB on rumen fermentation parameters after 24h of incubation were investigated ...
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Two experiments were conducted to assess the addition of pistachio by-product biochar (PBB) to lactatingIn first experiment, the effects of the addition of different levels (0, 0.5, 1 and 1.5% diet on dry matter basis, DM) ofPBB on rumen fermentation parameters after 24h of incubation were investigated in a completely randomized designwith four treatments and three replications. Second experiment was designed to evaluate effect of feeding selectedlevel of PBB on performance and nutrient digestibility of 8 lactating Kermanian ewes in a Latin square change-overdesign with two 21-day periods. Methane production and ammonia-N concentrations decreased linearly (P<0.01), andpH increased linearly (P<0.01) as the dietary level of PBB raised. With the addition of 1%diet, milk yield, blood glucose, digestibility of DM increased (P<0.05) and blood urea nitrogen (BUN) decreased(P<0.05) compared to control group. In general, adding 1% of PBB to lactatingand digestibility of DM.
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.