Effect on Rendement Napole genotype on metabolic markers in Ossabaw pigs fed different levels of fat

被引:5
|
作者
Lu, H. [1 ]
Yan, H. [1 ]
Ward, M. G. [1 ,2 ]
Stewart, T. [1 ]
Adeola, O. [1 ]
Ajuwon, K. M. [1 ]
机构
[1] Purdue Univ, Dept Anim Sci, W Lafayette, IN 47907 USA
[2] Weill Cornell Med Coll, Dept Biochem, 1300 York Ave, New York, NY 10065 USA
关键词
growth performance; metabolism; Ossabaw pigs; Rendement Napole; TECHNOLOGICAL MEAT QUALITY; HAMPSHIRE-SIRED PIGS; DIET-INDUCED OBESITY; SKELETAL-MUSCLE; CARCASS COMPOSITION; GROWTH-PERFORMANCE; MINIATURE SWINE; RN GENOTYPES; GENE; PORK;
D O I
10.1111/jpn.12720
中图分类号
S8 [畜牧、 动物医学、狩猎、蚕、蜂];
学科分类号
0905 ;
摘要
We investigated effects of Rendement Napole (RN) genotype on metabolic markers in Ossabaw pigs fed diets with different levels of dietary fat. Thirty-two pigs, belonging to either the wild-type (WT, rn(+)/rn(+)) or carrier (CAR, RN-/rn(+)) genotypes (n= 16/geno-type), were divided into two dietary groups, (high fat [HF] or low fat [LF]) diets, for 12 weeks (n= 8 pigs/genotype/diet) after which pigs were killed for gene expression analysis by RT-PCR. Feeding HF diet caused increased daily gain (ADG, p<.05) and final body weight (BW) (p<.05) in comparison with the LF diet (p<.05). Feed efficiency (gain: feed) was higher (p<.05) in pigs on the HF and was higher (p<.05) in CAR pigs compared to WT. There was genotype x diet interaction (p=.05) on final BW such that CAR animals on LF diet had the same final BW as animals of both genotypes on HF diet. Carrier pigs on LF diet had higher (p<.05) average daily gain and gain: feed than WT pigs. There was a trend (p<.08) for a higher feed consumption in pigs on the LF diet. Backfat thickness was higher (p<.01) in pigs on the HF diet. Serum triglyceride was higher (0.62 vs. 0.33 mg/dl, p<.01) in pigs on HF diet. Serum insulin was higher (p<.05) in CAR versus WT pigs (0.40 vs. 0.015 mu g/ml). Pigs on the HF diet had a higher (p<.05) serum insulin compared to those on the LF diet (0.032 vs. 0.023 mu g/ml). Carnitine palmitoyl transferase 1-alpha was higher (p<.05) in the longissimus dorsi and semitendinosus muscles of pigs on HF diet. Acyl-CoA oxidase I was elevated (p<.05) in the liver of pigs on HF diet. Fatty acid synthase was lower in the longissimus dorsi muscle, liver and mesenteric fat (p<.05) of carrier pigs. The RN gene regulates specific metabolic markers in the Ossabaw pigs.
引用
收藏
页码:E132 / E138
页数:7
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