Effects of Different Roughage Combinations on Growth Performance, Slaughter Performance and Meat Quality of Ningxia Tan Sheep

MA Qinqin, LI Tiejun, HE Liuqin, YIN Yulong, DUAN Ziyuan, MENG Jing, WU Dongpo

doi:10.3969/j.issn.1006-267x.2015.06.033

2015 , Vol. 27 >Issue 6: 1936 - 1942

DOI: https://doi.org/10.3969/j.issn.1006-267x.2015.06.033

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Effects of Different Roughage Combinations on Growth Performance, Slaughter Performance and Meat Quality of Ningxia Tan Sheep

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1. Scientific Observing and Experimental Station of Animal Nutrition and Feed Science in South-Central, Ministry of Agriculture, Hunan Provincial Engineering Research Center of Healthy Livestock and Poultry, Key Laboratory of Agro-Ecological Processes in Subtropical Region, Institute of Subtropical Agriculture, Chinese Academy of Sciences, Changsha 410125, China;
2. University of the Chinese Academy of Sciences, Beijing 100039, China;
3. Institute of Genetics and Developmental Biology, Chinese Academy of Sciences, Beijing 100190, China;
4. Modern Agriculture Comprehensive Development in Ningxia Engineering Technology Research Center, Yinchuan 750000, China;
5. Ningxia Agricultural Comprehensive Development Office, Yinchuan 750000, China

Received date: 2014-12-30

Online published: 2015-06-17

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Abstract

This study was conducted to determine the effects of different roughage combinations on growth performance, economic efficiency, slaughter performance and meat quality of Ningxia Tan sheep. Forty five Ningxia Tan ewes [(26.00±1.93) kg] were randomly divided into three groups with 3 replicates per group and 5 ewes per replicate according to homogeneous principle, the concentrate of different groups was the same and account for 60% in diet, and the roughage combinations were 30% alfalfa+10% maize straw (group Ⅰ), 15% alfalfa+15% Zhongke No.2 Leymus chinensis+10% maize straw (group Ⅱ) and 30% Zhongke No.2 Leymus chinensis+10% maize straw (group Ⅲ), respectively. The experiment lasted for 60 days. The results showed as follows: different roughage combinations did not cause any significant changes of average daily gain of Tan sheep (P>0.05), but the economic efficiency was the highest in group Ⅱ. The slaughter performance among three groups did not have significant difference (P>0.05). Water-holding capacity in group Ⅱ was significantly lower than that in groups Ⅰ and Ⅲ (P<0.05), and were reduced by 18.63% and 19.99%, respectively; shear force in group Ⅰ was significantly higher than that in group Ⅲ (P<0.05), and was increased by 6.41% and 15.46%, respectively, compared with that in groups Ⅱ and Ⅲ. Ether extract content in meat sample in group Ⅲ was significantly higher than that in group Ⅰ (P<0.05), and was increased by 66.74% and 14.06% respectively, compared with that in groups Ⅰ and Ⅱ. In conclusion, Zhongke No.2 Leymus chinensis replaced alfalfa to feed Ningxia Tan sheep can improve meat quality in a certain degree while improving economic efficiency without affecting growth performance and slaughter performance.

Key words： Zhongke No.2 Leymus chinensis; Ningxia Tan sheep; growth performance; slaughter performance; meat quality

Cite this article

MA Qinqin, LI Tiejun, HE Liuqin, YIN Yulong, DUAN Ziyuan, MENG Jing, WU Dongpo . Effects of Different Roughage Combinations on Growth Performance, Slaughter Performance and Meat Quality of Ningxia Tan Sheep[J]. Chinese Journal of Animal Nutrition, 2015 , 27(6) : 1936 -1942 . DOI: 10.3969/j.issn.1006-267x.2015.06.033

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