Effects of &beta;-Glucan on Growth Performance, Carcass Performance and Meat Quality of Growing-Finishing Pigs

DU Jian, CHEN Daiwen, YU Bing, HE Jun, YU Jie, LUO Junqiu

doi:10.3969/j.issn.1006-267x.2018.09.034

Chinese Journal of Animal Nutrition >

2018 , Vol. 30 >Issue 9: 3634 - 3642

DOI: https://doi.org/10.3969/j.issn.1006-267x.2018.09.034

Molecular Nutrition

Effects of β-Glucan on Growth Performance, Carcass Performance and Meat Quality of Growing-Finishing Pigs

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Key Laboratory for Animal Disease-Resistance Nutrition of Ministry of Education, Institute of Animal Nutrition, Sichuan Agricultural University, Chengdu 611130, China

Received date: 2018-03-05

Online published: 2018-09-20

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Abstract

This experiment was conducted to investigate the effects of dietary β-glucan on growth performance, carcass performance and meat quality of growing-finishing pigs, aiming to determine the application effect and suitable supplemental level of β-glucan in growing-finishing pigs' diet. Single factor test design was adopted in this experiment and a total of 96 healthy Duroc×Landrace×Yorkshire pigs with an initial average body weight of 20 kg were randomly allocated into 4 groups with 6 replicates per group and 4 pigs per replicate. Pigs in the control group were fed a basal diet, while in the experimental groups were fed the basal diet supplemented with 50, 100 and 200 mg/kg β-glucan, respectively. The experiment lasted for 103 days. The results showed as follows:1) compared with the control group, diet supplemented with 100 mg/kg β-glucan significantly increased the average daily gain (P<0.05), significantly reduced the ratio of feed to gain (P<0.05), and significantly improved the digestibility of dry matter, energy and crude protein (P<0.05) of growing-finishing pigs. 2) Compared with the control group, diet supplemented with 100 mg/kg β-glucan significantly increased carcass length and muscle pH of growing-finishing pigs (P<0.05), significantly reduced muscle drip loss and then significantly improved meat color (P<0.05), significantly increased the inosine monophosphate content in muscle (P<0.05) and changed the proportion of saturated fatty acid and unsaturated fatty acid in pork, thereby improving the flavor of meat. In conclusion, diet supplemented with 100 mg/kg β-glucan can improve growth performance, nutrient digestibility, carcass length and meat quality of growing-finishing pigs.

Key words： β-glucan; growing-finishing pigs; growth performance; carcass performance; meat quality

Cite this article

DU Jian, CHEN Daiwen, YU Bing, HE Jun, YU Jie, LUO Junqiu . Effects of β-Glucan on Growth Performance, Carcass Performance and Meat Quality of Growing-Finishing Pigs[J]. Chinese Journal of Animal Nutrition, 2018 , 30(9) : 3634 -3642 . DOI: 10.3969/j.issn.1006-267x.2018.09.034

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