Effects of Complex Nutritional Regulation Additives on Meat Quality of Grazing Sheep in Cold Season |
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| Authors: | LIANG Jing ZHANG Wen-ju WANG Bo |
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| Institution: | College of Animal Science and Technology, Shihezi University, Shihezi 832000, China |
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| Abstract: | The experiment was conducted to investigate the effects of complex nutritional regulation additives on meat quality of grazing sheep in cold season.A single factor random block design was used,48 grazing ewes with 7 months old and the average body weight (28.01±1.70) kg were randomly divided into 4 groups:Group Ⅰ without supplement;Group Ⅱ with routine concentrate;Group Ⅲ with routine concentrate+complex formulation group 1 (0.30% malic acid,0.06% cysteamine,0.08% saccharicterpenin);Group Ⅳ with routine concentrate+complex formulation group 2 (0.60% malic acid,0.12% cysteamine,0.16% saccharicterpenin).And there were 3 repeats for each group with 4 grazing ewes in each repeat.At the end of experiment,the longissimus dorsi of ewes were collected to determine the content of meat nutrient and amino acids.The results showed that:① The crude fat content of group Ⅲ was higher than groupⅠ,Ⅱ and Ⅳ by 27.92% (P < 0.05),16.67% (P > 0.05) and 7.85% (P > 0.05),respectively.The crude protein content of group Ⅲ was higher than groupⅠ,Ⅱ and Ⅳ by 7.35% (P < 0.05),3.94% (P > 0.05) and 2.49% (P > 0.05),respectively.The shear force in three supplementary feeding groups were extremely significantly lower than that in the control group (P < 0.01) and compared with group Ⅱ,group Ⅲ was decreased by 3.98% (P < 0.05).② Compared with group Ⅰ and Ⅱ,the proline content of group Ⅳ was increased by 38.34% (P < 0.01) and 22.75% (P < 0.05),respectively.While the proline content of group Ⅲ was higher than groupⅠand Ⅱ by 19.63% (P > 0.05) and 6.15% (P > 0.05),respectively.Except for proline,other amino acids were not significant different among the four experimental groups (P > 0.05).In conclusion,in this trial,supplementing complex nutritional regulation additives had good effects on crude fat,crude protein and shear force and amino acids contents,also improved the flavor and nutritional value of grazing sheep in cold season.Taking into consideration various factors,the effect of group Ⅲ (supplementing routine concentrate+complex formulation group 1) was the most obvious,which had the practical guiding importance in improving the meat quality of grazing sheep in cold season. |
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| Keywords: | grazing sheep complex nutritional regulation additives meat quality |
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