Comparison of Performance, Serum Biochemical Indices, Carcass Characteristics and Meat Quality of Male and Female Growing Donkeys

XING Jingya, QU Honglei, CHONG Xiaoyu, FENG Yulong, LIU Mingli, LIU Guiqin

doi:10.3969/j.issn.1006-267x.2019.06.033

2019 , Vol. 31 >Issue 6: 2727 - 2734

DOI: https://doi.org/10.3969/j.issn.1006-267x.2019.06.033

Molecular Nutrition

Comparison of Performance, Serum Biochemical Indices, Carcass Characteristics and Meat Quality of Male and Female Growing Donkeys

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1. College of Agronomy Liaocheng University, Shandong Engineering Technology Research Center for Efficient Breeding and Ecological Feeding of Black Donkey, Shandong Donkey Industry Technology Collaborative Innovation Center, Liaocheng 252000, China;
2. Engineering Research Center of Gelatin-Based Traditional Chinese Mediciine, Dong-E-E-Jiao Co. Ltd., Liaocheng 252201, China

Received date: 2018-12-04

Online published: 2019-06-17

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Abstract

This experiment was aimed to compared the difference in performance, serum biochemical indices, carcass characteristics and meat quality of male and female growing donkeys. Twenty 7 to 8-month-old improved Dezhou donkeys with similar body weight of (149.50±7.20) kg and similar parity were selected, divided into 2 groups by sex, each group contained 2 replicates with 5 donkeys per replicate. The concentrate was feed based on the body weight of 1.5%, and soybean straw used as roughage, and the ratio of concentrate to roughage was 4:6. The adaptation period lasted for 7 days and the formal period lasted for 270 days. The results showed as follows:1) the dry matter intake and average daily gain of female donkeys were higher than those of male donkeys, but had no significant difference (P>0.05); the body length, chest width, skinning rate and collagen content of female donkeys were significantly lower than those of male donkeys (P<0.05 or P<0.01), and the bust of female donkeys was significantly higher than that of male donkeys (P<0.05). 2) The serum albumin to globulin ratio of female donkeys was significantly higher than that of male donkeys (P<0.05), and the serum alkaline phosphatase activity of female donkeys was significantly lower than that of male donkeys (P<0.01). There were no significant differences in other serum biochemical indices between female donkeys and male donkeys (P>0.05). 3) The carcass rate, abdominal fat rate of female donkeys was significantly higher than that of male donkeys (P<0.05), and the shear force, marble rating and free fatty acid content in muscle of female donkeys was significantly higher than that of male donkeys (P<0.01). There were no significant differences in other carcass characteristics and meat quality indices between female donkeys and male donkeys (P>0.05). In conclusion, under the conditions of this experiment, the performance, carcass characteristics and meat quality of female donkeys are better than those of male donkeys, but the skinning rate and skin collagen content of male donkeys are higher than those of female donkeys.

Key words： donkeys; performance; serum biochemical indices; carcass characteristics; meat quality

Cite this article

XING Jingya, QU Honglei, CHONG Xiaoyu, FENG Yulong, LIU Mingli, LIU Guiqin . Comparison of Performance, Serum Biochemical Indices, Carcass Characteristics and Meat Quality of Male and Female Growing Donkeys[J]. Chinese Journal of Animal Nutrition, 2019 , 31(6) : 2727 -2734 . DOI: 10.3969/j.issn.1006-267x.2019.06.033

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