Intramuscular collagen characteristics and expression of related genes in skeletal muscle of cull cows receiving a high-energy diet

Santos, Marta Maria dos; Costa, Thaís Correia; Lopes, M. M.; Souza, Ranyeri; Carneiro, Lorena Silva; Paulino, Pedro Veiga Rodrigues; Chizzotti, M. L.; Silva, Fabyano Fonseca e; Serão, Nick V. L.; Duarte, Márcio de Souza

doi:10.1016/j.meatsci.2021.108495

Cited by 16 publications

(6 citation statements)

References 32 publications

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“…However, the shear force was unaffected by age in this study. A recent study [36] reported that the shear force of beef from cull cows was lower than that from heifers when fed with a high-energy ration for 150 d, which indicates that the high IMF content induced by long-term fattening could weaken the effect of connective tissue properties on tenderness. Drip loss, pressing loss as well as cooking loss can describe the water-holding capacity of beef and reflect different characteristics.…”

Section: Discussionmentioning

confidence: 98%

Effects of Age and Rice Straw Inclusion Levels in the Diet of Yiling Cull Cows on Growth Performance, Meat Quality, and Antioxidant Status of Tissues

Qiu

Qin

Chen

et al. 2021

Animals

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The objectives of this study were to investigate the effects of age and dietary straw levels on growth performance, carcass and meat traits, as well as tissue antioxidant status of Yiling cull cows. Twenty-four Yiling cull cows were arranged in a 2 × 2 factorial design: two age classes consisting of younger cull cows (YCC; appearing with three or four pairs of permanent teeth) and older cull cows (OCC; worn out teeth); two dietary treatments consisting of lower and higher rice straw levels (LRS and HRS; providing 0.7 kg/d and 1.2 kg/d rice straw per head based on air-dry basis, respectively). Cows were fed twice a day. Straw was offered at half of the predetermined weight each meal; concentrate was separately supplied ad libitum. After 300 d of feeding, final body weight (BW), total BW gain, average daily gain and gain:feed intake were higher (p < 0.01) in the YCC group than in the OCC group. Total dry matter intake was higher (p = 0.03) in the HRS group than in the LRS group, but neutral detergent fiber apparent digestibility was negatively affected (p = 0.01) by increased straw levels. Decreased C15:0, C17:0, C20:5n3c, and saturated fatty acids (SFAs) proportion as well as increased C18:1n9c and monounsaturated fatty acids (MUFAs) proportion in meat from YCC with HRS diet were observed as compared to that in meat from YCC with LRS diet (p < 0.05). Meat from HRS group had higher (p = 0.04) C18:3n3c proportion than meat from LRS group. No significant differences (p > 0.05) were found for meat quality attributes except for cooking loss, which was higher (p = 0.02) in the HRS group than in the LRS group. Both YCC group and HRS group had higher (p < 0.05) cold carcass weight compared to OCC group and LRS group. Moreover, catalase activity of liver tissue was higher (p = 0.045) in YCC than in OCC, while superoxide dismutase activity of muscle tissue was higher (p = 0.01) in LRS than in HRS. Based on results, we concluded that younger age and feeding high-level straw can improve the finishing performance of Yiling cull cows.

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Section: Discussionmentioning

confidence: 98%

Effects of Age and Rice Straw Inclusion Levels in the Diet of Yiling Cull Cows on Growth Performance, Meat Quality, and Antioxidant Status of Tissues

Qiu

Qin

Chen

et al. 2021

Animals

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“…In mice, deficiency of TIMP2 leads to increased cardiac hypertrophy and subsequent heart enlargement [43]. In cows, mRNA expression of TIMP2 is associated with intramuscular fat content and explains 32% of the variation in intramuscular fat [44]. TIMP2 also affects feed conversion efficiency in cattle by regulating cell growth and proliferation networks [45,46].…”

Section: Genetic Loci and Candidate Genes For The Tlnw Traitmentioning

confidence: 99%

Identification of Candidate Genes for Economically Important Carcass Cutting in Commercial Pigs through GWAS

Zhou,

Quan,

Ruan

et al. 2023

Animals

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During the process of pork production, the carcasses of pigs are divided and sold, which provides better economic benefits and market competitiveness for pork production than selling the carcass as a whole. Due to the significant cost of post-slaughter phenotypic measurement, the genetic architecture of tenderloin weight (TLNW) and rib weight (RIBW)—important components of pig carcass economic value—remain unknown. In this study, we conducted genome-wide association studies (GWAS) for TLNW and RIBW traits in a population of 431 Duroc × Landrace × Yorkshire (DLY) pigs. In our study, the most significant single nucleotide polymorphism (SNP) associated with TLNW was identified as ASGA0085853 (3.28 Mb) on Sus scrofa chromosome 12 (SSC12), while for RIBW, it was Affx-1115046258 (172.45 Mb) on SSC13. Through haplotype block analysis, we discovered a novel quantitative trait locus (QTL) associated with TLNW, spanning a 5 kb region on SSC12, and a novel RIBW-associated QTL spanning 1.42 Mb on SSC13. Furthermore, we hypothesized that three candidate genes, TIMP2 and EML1, and SMN1, are associated with TLNW and RIBW, respectively. Our research not only addresses the knowledge gap regarding TLNW, but also serves as a valuable reference for studying RIBW. The identified SNP loci strongly associated with TLNW and RIBW may prove useful for marker-assisted selection in pig breeding programs.

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“…Due to the presence of fibro-adipogenic progenitor cells in postnatal period, diet intervention in this period may slightly contribute to improve marbling and tenderness. Feeding cull cows with high-energy diets tended to increase the intramuscular fat content and contributed to increase meat tenderness ( Fontes et al, 2021 ). In contrast, feeding beef cattle with vitamin A during the fattening phase, impaired the lipid biosynthesis in the skeletal muscle and consequently decreased the intramuscular fat deposition ( Campos et al, 2020 ), negatively contributing to meat quality parameters.…”

Section: Fetal Programming and The Efficiency For The Deposition Of Muscle And Fatmentioning

confidence: 99%

Fetal programming in ruminant animals: understanding the skeletal muscle development to improve meat quality

2021

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Intramuscular collagen characteristics and expression of related genes in skeletal muscle of cull cows receiving a high-energy diet

Cited by 16 publications

References 32 publications

Effects of Age and Rice Straw Inclusion Levels in the Diet of Yiling Cull Cows on Growth Performance, Meat Quality, and Antioxidant Status of Tissues

Effects of Age and Rice Straw Inclusion Levels in the Diet of Yiling Cull Cows on Growth Performance, Meat Quality, and Antioxidant Status of Tissues

Identification of Candidate Genes for Economically Important Carcass Cutting in Commercial Pigs through GWAS

Fetal programming in ruminant animals: understanding the skeletal muscle development to improve meat quality

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