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Comparisons of carcass traits,meat quality,and serum metabolome between Shaziling and Yorkshire pigs

Animal Nutrition 2022年第1期8卷 125-134页

作者： Bo Song Changbing Zheng Jie Zheng Shiyu Zhang Yinzhao Zhong Qiuping Guo Fengna Li Cimin Long Kang Xu Yehui Duan Yulong Yin CAS Key Laboratory of Agro-ecological Processes in Subtropical Region Hunan Provincial Key Laboratory of Animal Nutritional Physiology and Metabolic ProcessNational Engineering Laboratory for Pollution Control and Waste Utilization in Livestock and Poultry ProductionInstitute of Subtropical AgricultureChinese Academy of SciencesChangsha410125China University of Chinese Academy of Sciences Beijing100039China

This study aims to compare the meat quality of Shaziling and Yorkshire pigs and to find the potential indicator in serum for superior meat *** Shaziling and Yorkshire pigs at 30,60,90,150,210,and 300 d of age were selected to examine carcass traits,meat quality,and serum *** results showed that the body weight,carcass length,and loin eye area of Shaziling pigs at 150,210,and 300 d of age were significantly lower than those of Yorkshire pigs(P<0.05).Shaziling pigs at 150 and 300 d of age had significantly lower backfat thickness than Yorkshire pigs(P<0.05).Compared with Yorkshire pigs,Shaziling pigs at all 6 ages had a lower lean percentage and a higher fat percentage(P<0.05).At 60,90,and 150 d of age,the post-mortem pH-decline,b*value(yellowness),and drip loss of Shaziling pigs were significantly lower than those of Yorkshire pigs(P<0.05).Moreover,at 150 d of age,Shaziling pigs had significantly higher a^(*)value(redness)and intramuscular fat(IMF)content than Yorkshire pigs(P<0.05).Correlation analysis between the top 40 metabolites and phenotypes indicated that L-carnitine had positive correlations with fat percentage,pH24h,and IMF content,but had negative correlations with lean percentage,L^(*)value(lightness),and b^(*)value(P<0.05).Serum L-carnitine content,fat percentage,pH24h,and IMF content all decreased first and then increased as the pigs grew,which verified the positive correlations between L-carnitine and these *** conclusion,Shaziling pigs have a slower growth rate but a better meat quality than Yorkshire *** meat quality of Shaziling pigs is the best from 150 to 210 d of *** study suggests that a higher serum L-carnitine content is a promising indicator for better meat quality.

关键词： Shaziling pig Yorkshire pig carcass trait Meat quality Serum metabolome

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Genome-Wide Association Study for Certain carcass traits and Organ Weights in a Large White×Minzhu Intercross Porcine Population

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Journal of Integrative Agriculture 2014年第12期13卷 2721-2730页

作者： LIU Xin WANG Li-gang LIANG Jing YAN Hua ZHAO Ke-bin LI Na ZHANG Long-chao WANG Li-xian Key Laboratory of Farm Animal Genetic Resources and Germplasm Innovation Ministry of Agriculture/Institute of Animal Science C hinese Academy of Agricultural Sciences Jilin Academy of Agricultural Sciences

Porcine carcass traits and organ weights have important economic roles in the swine industry. A total of 576 animals from a Large White×Minzhu intercross population were genotyped using the Illumina PorcineSNP60K Beadchip and were phenotyped for 10 traits, speciifcally, backfat thickness （6-7 libs）, carcass length, carcass weight, foot weight, head weight, heart weight, leaf fat weight, liver weight, lung weight and slaughter body weight. The genome-wide association study （GWAS） was assessed by Genome Wide Rapid Association using the mixed model and regression-genomic control approach. A total of 31 single nucleotide polymorphisms （SNPs）（with the most signiifcant SNP being MARC0033464, P value=6.80×10-13） were located in a 9.76-Mb （31.24-41.00 Mb） region on SSC7 and were found to be signiifcantly associated with one or more carcass traits and organ weights. High percentage of phenotypic variance explanation was observed for each trait ranging from 31.21 to 67.42%. Linkage analysis revealed one haplotype block of 495 kb, in which the most signiifcant SNP being MARC0033464 was contained, on SSC7 at complete linkage disequilibrium. Annotation of the pig reference genome suggested 6 genes （GRM4, HMGA1, NUDT3, RPS10, SPDEF and PACSIN1） in this candidate linkage disequilibrium （LD） interval. Functional analysis indicated that the HMGA1 gene presents the prime biological candidate for carcass traits and organ weights in pig, with potential application in breeding programs.

关键词： genome-wide association study (GWAS) carcass trait HMGA1 gene organ weight pig

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Infusion of short chain fatty acids in the ileum improves the carcass traits,meat quality and lipid metabolism of growing pigs

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Animal Nutrition 2021年第1期7卷 94-100页

作者： Anran Jiao Hui Diao Bing Yu Jun He Jie Yu Ping Zheng Yuheng Luo Junqiu Luo Quyuan Wang Huifen Wang Xiangbing Mao Daiwen Chen Institute of Animal Nutrition Sichuan Agricultural UniversityKey Laboratory for Animal Disease-Resistance Nutrition of China Ministry of EducationKey Laboratory of Animal Disease-resistant Nutrition and Feed of China Ministry of Agriculture and Rural AffairsKey Laboratory of Animal Disease-resistant Nutrition of Sichuan ProvinceYa'an625014China

Short chain fatty acids(SCFA)are the main products of indigestible carbohydrates undergoing bacterial fermentation in the hindgut,which are related to some physiological *** study was designed to investigate the effects of SCFA infusion by ileum on the carcass traits,meat quality and lipid meta-bolism of growing *** a 28-day study,24 growing barrows fitted with a T-cannula in distal ileum were divided into 4 treatments:1)Control,2)antibiotics(AB),3)AB+300 mL of SCFA1 solution(ABS1),4)AB+300 mL of SCFA2 solution(ABS2).The concentrations of acetate,propionate and butyrate in SCFA1 solution were respectively 61.84,18.62 and 12.55 mmol/L,and in SCFA2 were respectively 40.08,15.41 and 9.78 mmol/L The results showed that the SCFA infusion increased the average daily feed intake and average daily gain of pigs(Pcarcass weight(P=0.058),decreased the drip loss of longissimus dorsi(P=0.059),and reduced serum concentrations of triglyceride,total cholesterol and urea nitrogen(Pcarcass traits and meat quality of growing pigs,which was possibly due to the fact that SCFA modulated lipid metabolism.

关键词： Short chain fatty acid carcass trait Meat quality Lipid metabolism Growing pig

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Imprinting Analysis of RTL1 and DIO3 Genes and Their Association with carcass traits in Pigs (Sus scrofa)

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Agricultural Sciences in China 2009年第5期8卷 613-619页

作者： YANG Zong-lin CHENG Huan-chen XIA Qing-you JIANG Cao-de DENG Chang-yan LI Yue- min School of Life Science Southwest University Chongqing 400715 P.R.China College of Animal Science and Technology Southwest University Chongqing 400715 P.R. China Key Laboratory of Pig Genetics and Breeding Ministry of Agriculture/Huazhong Agricultural University Wuhan 430070 P.R.China Key Sericultural Laboratory Ministry of Agriculture/Southwest University Chongqing 400715 P.R.China

Imprinted genes play significant roles in the regulation of fetal growth, development, function of the placenta and postnatal behavior in mammals, but little is known in pigs. In order to investigate the imprinting status of porcine retro-transposon like 1 （RTL1） and type 3 iodothyronine deiodinase （DIO3） genes, DNA or RNA samples of the parents and F1 animals, generated with reciprocal crosses between Large White and Meishan breeds, were isolated, and analyzed by reverse transcription polymerase chain reaction restriction fragment length polymorphism （RT-PCR-RFLP）. The results demonstrated that the RTL1 gene was paternally expressed in 10 tissues, such as the skeletal muscle, heart, spleen, liver, kidney, lung, stomach, fat, small intestine and brain, and D103 gene exhibited paternal expression in the skeletal muscle, heart, spleen, lung, stomach, and brain, in 2-month-old pigs. The association of RTL1 and DI03 with carcass traits was further analyzed in the F2 population of Large White×Meishan pigs. The statistical results showed that the R TL1 A1101G polymorphism （EU781029） was significantly associated with lean meat percentage （LMP） and fat meat percentage （FMP）（P〈0.05）, while the D103 A744C polymorphism （AY533208） was not significantly associated with any carcass traits. These results indicate that the imprinting status of RTL1 and DIO3 is well kept across the mammalian species, and porcine RTL1 may have important roles in muscle growth and fat deposition.

关键词： imprinted gene RTLI DIO3 carcass trait pig

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Chromium propionate improves performance and carcass traits in broilers

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Animal Nutrition 2020年第4期6卷 480-487页

作者： Veerle Van Hoeck Mahendra Sonawane Antonio L.Gonzalez Sanchez Iris Van Dosselaer Chris Buyens Dany Morisset Kemin Europa N.V. Animal Nutrition and Health EMENAToekomstlaan 422200HerentalsBelgium

There is evidence to suggest that poultry may have a dietary requirement for metabolically available chromium(Cr)that exceeds the amount provided through wheat soybean meal *** objective of the present study was to investigate the effects of dietary supplemental organic Cr from Cr propionate at different dose levels(control=0μg/kg,T1=200μg/kg,T2=400μg/kg)on the growth performance,carcass traits,and meat quality of *** gain and feed intake of each treatment were recorded at the start and after 14,28 and 35 d,and feed conversion ratios(FCR)were calculated ***35 d of age,birds were randomly selected and euthanized for carcass *** of the first trial indicate that both Cr propionate treatments increased final body weight(Pcarcass ***,with increased Cr dosage,carcass yield,dressing percentage and breast meat yield increased linearly(Pcarcass yield,dressing percentage,breast meat yield,leg and thigh weights compared with the control *** conclusion,growth performance,feed conversion,carcass yield,breast and leg meats of broiler birds can be significantly improved by dietary inclusion of Cr *** pro

关键词： Chromium propionate Broiler Performance carcass trait

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Estimated Genetic Variance Explained by Single Nucleotide Polymorphisms of Different Minor Allele Frequencies for carcass traits in Japanese Black Cattle

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Journal of Biosciences and Medicines 2016年第5期4卷 89-97页

作者： Shinichiro Ogawa Hirokazu Matsuda Yukio Taniguchi Toshio Watanabe Yoshikazu Sugimoto Hiroaki Iwaisaki Graduate School of Agriculture Kyoto University Kyoto Japan National Livestock Breeding Center Nishigo Fukushima Japan Shirakawa Institute of Animal Genetics Japan Livestock Technology Association Nishigo Fukushima Japan

Japanese Black cattle are a beef breed and well known to excel in carcass quality, but the details of genetic architectures for carcass traits in beef breeds including this breed are still poorly understood. The objective of this study was to estimate the degree of additive genetic variance explained by single nucleotide polymorphism (SNP) marker groups with different levels of minor allele frequency (MAF) for marbling score and carcass weight in Japanese Black cattle. Phenotypic data on 872 fattened steers with the genotype information about 40,000 autosomal SNPs were analyzed using two different statistical models: one considering only SNPs selected based on MAF (model 1) and the other also considering all remaining SNPs as the different term (model 2). All available SNPs were classified into 10 groups based on their MAFs. For both traits, the estimated proportions of additive genetic variance explained by SNPs selected based on their MAFs using model 1 were always higher than the estimated ones using model 2. For carcass weight, relatively high values of the proportion of the additive genetic variance were estimated when using SNPs with MAFs which were in the ranges of 0.20 to 0.25 and 0.25 to 0.30, which may be partly due to the three previously-reported quantitative trait loci candidate regions. The results could have provided some information on the genetic architecture for the carcass traits in Japanese Black cattle, although its validity may be limited, mainly due to the sample size and the use of simpler statistical models in this study.

关键词： Additive Genetic Variance carcass trait Japanese Black Cattle Minor Allele Frequency Single Nucleotide Polymorphism

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IDEAL DIGESTIBLE LYSINE REQUIREMENT OF FINISHING PIGS

IDEAL DIGESTIBLE LYSINE REQUIREMENT OF FINISHING PIGS

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面向21世纪的动物科学与动物医学国际研讨会

作者： Lin Yingcai Jiang Zongyong YangXiaojian YuDeqian Wu Shilin ChenZhonggan Institute of Animal Science Guangdong Academy of Agricultural Science Guangzhou 510640

＜正＞Seventy crossbred（Duroc×（Landrace×Yorkshire）） pigs were used to investigate the effects of different dietary lysine levels（0.53, 0.60, 0.65, 0.70, 0.75, 0.80 and 0.90％） on performance, serum urea nitrogen（SUN）concentration and carcass traits of finishing pigs weighing from 51 to 93kg. The results showed that daily gain trended to increase（P＞0.05）, feed to gain ratio trended to decrease（p＞0.05）, lean gain increased significantly（P＜0.05）,

关键词： finishing pig lysine requirement carcass trait ideal digestibility

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