Effect of different dietary inclusions levels of sugarcane molasses and vinasses on in vitro gas production parameters

Document Type : Research Paper

Authors

1 Ph.D Graduated Student of Animal Science Department, Faculty of Animal Science and Food Technology, Ramin Agriculture and Natural Resources University of Khuzestan, Iran

2 Researcher of Agricultural Research and Education Center and Natural Resources

3 Associate Professor of Animal Science Department, Faculty of Animal Science and Food Technology, Ramin Agriculture and Natural Resources University of Khuzestan, Iran

4 Associate Professor of Animal Science Research Institute, Agricultural Research, Education and Extension Organization, Tehran, Iran

Abstract

This study was conducted to compare the nutritive value of molasses and vinasses by in vitro gas production technique using rumen fluid collected from three fistulated mature male sheep. The experiment used the completely randomized design with 5 treatments and 6 replications. Rumen fluid was collected from three fistulated mature male sheep.The experimental diets included: diet 1) basal diet + 20% molasses + 0% vinasses (control), diet 2) basal diet +  15% molasses +5% vinasses, diet 3) basal diet +  10% molasses + 10% vinasses, diet 4) basal diet + 5% molasses + 15% vinasses, and diet 5) basal diet +  0% molasses + 20% vinasses. Potential of gas production, rate of gas production, metabolizable energy, digestibilityof organic matter and short-chain fatty acids from molasses were more than those from vinasses (P<0.05). Partitioning Factor, microbial biomass and microbial biomass efficiency at level of 10% vinasses was less compared to the control (P<0.05). The volume of gas production from diet containing 15% vinasses was greater than the control throughout the fermentation period (P<0.05). Metabolizable energy, organic matter digestibility and short-chain fatty acids from the diet containing 15% vinasses was significantlyhigher compared to the control (P<0.05). Generally, substitution of vinasses with molasses up to 15% increased the nutritional value of the diets.

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Main Subjects


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