Effects of Linseed Oil and Palm Oil on Slaughter Performance, Growth and Development of Tissues and Organs and Meat Quality of Cashmere Goats

LI Yinhao; WANG Xue; LIU Shulin; ZHANG Qingyue; YAN Sumei; ZHAO Yanli; GUO Xiaoyu; SHI Binlin

doi:10.3969/j.issn.1006-267x.2022.02.043

2022 , Vol. 34 >Issue 2: 1119 - 1127

DOI: https://doi.org/10.3969/j.issn.1006-267x.2022.02.043

RESEARCH PAPER

Effects of Linseed Oil and Palm Oil on Slaughter Performance, Growth and Development of Tissues and Organs and Meat Quality of Cashmere Goats

LI Yinhao ,
WANG Xue ,
LIU Shulin ,
ZHANG Qingyue ,
YAN Sumei ,
ZHAO Yanli ,
GUO Xiaoyu ,
SHI Binlin

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Key Laboratory of Animal Nutrition and Feed Science at Universities of Inner Mongolia Autonomous Region, College of Animal Science, Inner Mongolia Agricultural University, Hohhot 010018, China

Received date: 2021-07-22

Online published: 2022-02-15

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Abstract

This experiment was conducted to investigate the effects of linseed oil and palm oil on slaughter performance, growth and development of tissues and organs and meat quality of cashmere goats. The experiment using a single factor completely random design, sixty healthy (120±10)-day-old Albas cashmere goats with similar body weight[(18.60±1.61) kg] were selected and divided into three groups with 4 replicates per group and 5 goats per replicate. The linseed oil group (LNO group), palm oil group (PMO group) and mixed oil group (BLP group) were added the same amount of linseed oil, palm oil and mixed oil (linseed oil:palm oil=2:1) in the basal diet, respectively. The pre-experimental period lasted for 15 days, and the experimental period lasted for 90 days. The results showed as follows that the body weight before slaughter of the BLP group was significantly lower than that of the PMO group and LNO group (P<0.05), the relative weight of mesenteric fat was significantly higher than that of the PMO group and LNO group (P<0.05), the carcass weight was significantly lower than that of the LNO group (P<0.05), the relative weight of omental fat was trend lower than that of the PMO group (P=0.080), the relative weights of fur, head and lungs of the BLP group were significantly higher than those of the LNO group (P<0.05), the relative weights of duodenum, ileum, liver and pancreas were significantly higher than those of the PMO group (P<0.05), the relative weight of perrenal fat was significantly higher than that of the PMO group (P<0.05), the pH_{45 min}, △pH and drip loss of longissimus dorsi were significantly lower than those of the PMO group and LNO group (P<0.05), and the content of ether extract in longissimus dorsi and triceps brachii was tended higher than that of the PMO group and LNO group (P=0.095, P=0.096). In conclusion, the mixed addition of linseed oil and palm oil reduces the body weight before slaughter and carcass weight of cashmere goats compare to adding them separately, promotes the growth of fur, head, lung, duodenum, ileum, liver, pancreas and other tissues and organs, increases the deposition of perirenal fat and mesenteric fat; the mixed addition of linseed oil and palm oil slows down the acidification process of muscles after slaughter compare to adding them separately, reduces the muscle drip loss, has a tendency to promote the muscle ether extract content, and improves the meat quality.

Key words： cashmere goats; linseed oil; palm oil; slaughter performance; organ indexes; meat quality

Cite this article

LI Yinhao , WANG Xue , LIU Shulin , ZHANG Qingyue , YAN Sumei , ZHAO Yanli , GUO Xiaoyu , SHI Binlin . Effects of Linseed Oil and Palm Oil on Slaughter Performance, Growth and Development of Tissues and Organs and Meat Quality of Cashmere Goats[J]. Chinese Journal of Animal Nutrition, 2022 , 34(2) : 1119 -1127 . DOI: 10.3969/j.issn.1006-267x.2022.02.043

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