Serum Biochemistry and Expression of Carcass Trait-related Gene of Sujiang Pigs as Affected by Dietary Makeup at Final Growth Stage

ZHOU Gen-lai; TAO Yong; NI Li-gang; REN Shan-mao; XU Pan; YIN Jie-xin; ZHANG Jun-sheng; ZHOU Chun-bao; ZHAO Xu-ting

doi:10.19303/j.issn.1008-0384.2019.06.007

Volume 34 Issue 6

Sep. 2019

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Article Navigation > Fujian Journal of Agricultural Sciences > 2019 > 34(6): 668-677

ZHOU Gen-lai, TAO Yong, NI Li-gang, REN Shan-mao, XU Pan, YIN Jie-xin, ZHANG Jun-sheng, ZHOU Chun-bao, ZHAO Xu-ting. Serum Biochemistry and Expression of Carcass Trait-related Gene of Sujiang Pigs as Affected by Dietary Makeup at Final Growth Stage[J]. Fujian Journal of Agricultural Sciences, 2019, 34(6): 668-677. doi: 10.19303/j.issn.1008-0384.2019.06.007

Citation:

ZHOU Gen-lai, TAO Yong, NI Li-gang, REN Shan-mao, XU Pan, YIN Jie-xin, ZHANG Jun-sheng, ZHOU Chun-bao, ZHAO Xu-ting. Serum Biochemistry and Expression of Carcass Trait-related Gene of Sujiang Pigs as Affected by Dietary Makeup at Final Growth Stage[J]. Fujian Journal of Agricultural Sciences, 2019, 34(6): 668-677. doi: 10.19303/j.issn.1008-0384.2019.06.007

Citation:

ZHOU Gen-lai, TAO Yong, NI Li-gang, REN Shan-mao, XU Pan, YIN Jie-xin, ZHANG Jun-sheng, ZHOU Chun-bao, ZHAO Xu-ting. Serum Biochemistry and Expression of Carcass Trait-related Gene of Sujiang Pigs as Affected by Dietary Makeup at Final Growth Stage[J]. Fujian Journal of Agricultural Sciences, 2019, 34(6): 668-677. doi: 10.19303/j.issn.1008-0384.2019.06.007

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Serum Biochemistry and Expression of Carcass Trait-related Gene of Sujiang Pigs as Affected by Dietary Makeup at Final Growth Stage

doi: 10.19303/j.issn.1008-0384.2019.06.007

1.
Jiangsu Agri-animal Husbandry Vocational College, Taizhou, Jiangsu 225300, China
2.
Jiangsu Provincial Engineering Technology Center of Modern Animal Science and New Veterinary Drugs, Taizhou, Jiangsu 225300, China
3.
Jiangsu Sujiang Breeding Pig Co., Ltd., Taizhou, Jiangsu 225300, China

Received Date: 2019-04-04
Rev Recd Date: 2019-05-05
Publish Date: 2019-06-28

Abstract

Abstract

Objective Effects of diet composition on growth performance, serum biochemistry and carcass trait-related gene expression of Sujiang pigs at final stage prior to slaughtering were investigated. Method Randomly selected 162 Sujiang pigs with a body weight of (50.49±4.78)kg were divided in 9 groups with 3 replicates per group and 6 pigs per replicate (half male and half female) for the study. The diets used in the L₉(3⁴) orthogonal experiment were varied with 3 levels of digestible energy (DE) at 11.64, 12.24, and 12.84 MJ·kg^-1, 3 levels of crude protein (CP) at 12%, 13%, and 14%, and 3 levels of crude fiber (CF) at 5%, 8%, and 11%. A pre-feeding period lasted 7 d followed by 42-d-feeding before sampling for serum analysis on the pigs. Result (1) The TP content in the 12.84 MJ·kg^-1 DE group was significantly higher than that in the 11.64 MJ·kg^-1 DE group (P < 0.05), and GLB in the 12.84 MJ·kg^-1 DE groups were significantly higher than those in the 11.64 and 12.24 MJ·kg^-1 DE groups (P < 0.01). UN in the 8% CF and the 11% CF groups were extremely significantly (P < 0.01) and significantly (P < 0.05) higher than that in the 5% CF group. TC in the 14% CP groups were significantly lower than that in the 12% CP group (P < 0.01), and TG in the 14% CP group was significantly lower than that in the 12% CP group (P < 0.01). Glu in the 11% CF group was significantly lower than that in the 5% CF group (P < 0.01), and CREA in the 12.84 MJ·kg^-1 DE group was significantly lower than that in the 11.64 MJ·kg^-1 DE group (P < 0.05). (2) The serum insulin in the 12.84 MJ·kg^-1 DE group was significantly higher than that in the 11.64 MJ·kg^-1 DE group (P < 0.05). Serum T3 in the 11% CF group was significantly lower than that in the 5% CF group (P < 0.05). However, the dietary nutrition showed no significant effect on serum enzyme activities in the pigs (P>0.05). (3) The expressions of H-FABP and PRAKG3 genes in the longissimus dorsi muscle of the 11.64 MJ·kg^-1 DE group were significantly higher than those in the muscle of the 12.24 and 12.84 MJ·kg^-1 DE groups (P < 0.05), while that of HSL gene was significantly higher than those of 12.24 and 12.84 MJ·kg^-1 DE groups (P < 0.01). The dietary CP or CF induced no significant effect on the expression of the genes in the pigs (P>0.05). Conclusion Dietary DE, CP and CF affected the growth and development of Sujiang pigs at the final fattening stage through regulating the serum biochemistry and carcass trait-related gene expression of the animals. It appeared that a provision of DE at 12.84 MJ·kg^-1, CP at 12%, and CF at 11% in the forage was appropriate for the pigs in that stage.
- sujiang pigs,
- dietary nutrient level,
- biochemistry,
- hormone,
- enzyme activity,
- gene expression

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References(34)

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