نوع مقاله : مقاله پژوهشی
نویسندگان
1 دانشگاه علوم کشاورزی و منابع طبیعی خوزستان
2 دانشگاه رامین
3 Autónoma del Estado de México, Toluca, Edo de México, México
چکیده
کلیدواژهها
موضوعات
عنوان مقاله [English]
نویسندگان [English]
Background and objectives: Acidosis is a nutritional disorder that is often caused by intake of the high amount of fermentable carbohydrate and an inadequate amount of fiber to induce buffering in the rumen. Hence, a strategy such as the use of microbial additives to prevent acidosis have been suggested. So, this study performed to investigate the effect of using three microbial feed additives (lactate producing and utilizing bacteria and Saccharomyces cerevisiae) in high-concentrate diet on in vitro anaerobic fermentation and digestibility in sheep. Our hypothesis was that the combination of microbial additives compared with individual use and without additives will have a positive effect on in vitro gas production parameters and digestibility in sheep.
Materials and methods: For investigating the effect of microbial additives on the in vitro gas production (GP) parameter, ruminal fermentation and digestibility, 8 treatments were studied based on as factorial experiment based on a completely randomized design; (1) control (basal diet (70% concentrate and 30% forage) without additive; CON); (2) basal diet + Megasphaera elsdenii (Me); (3) basal diet + Saccharomyces cerevisiae (SC); (4) basal diet + Lactobacillus fermentum and Lactobacillus plantarum (FP); (5) basal diet + Me + SC (MSC); (6) basal diet + Me + FP (MFP); (7) basal diet + SC + FP (SCFP) and (8) basal diet + Me + SC + FP (MSCFP). Gas production techniques and two step digestion were used to evaluate the effectiveness of experimental treatments. Ruminal fluid was collected from three adult male Arabi sheep that fed a diet based on forage.
Results: Results showed that use of microbial feed additive improved GP and the highest amount of GP was observed in treatment MSCFP (P
کلیدواژهها [English]
Al Ibrahim, R.M., Kelly, A.K., O’Grady, L., Gath, V.P., McCarney, C. and Mulligan, F.J. 2010. The effect of body condition score at calving and supplementation with Saccharomyces cerevisiae on milk production, metabolic status, and rumen fermentation of dairy cows in early lactation. Journal of Dairy Science. 93: 5318-5328.