Relationships among feed efficiency traits across production segments and production cycles in cattle
نویسندگان
چکیده
منابع مشابه
Maternal and Direct Genetic Parameters for Production Traits and Maternal Correlations among Production and Feed Efficiency Traits in Duroc Pigs
Direct and maternal genetic parameters for production traits in 1,642 pigs and maternal genetic correlations among production (1,642 pigs) and feed efficiency (380 boars) traits were estimated in 7 generations of a Duroc population. Traits studied were daily gain (DG), intramuscular fat (IMF), loineye area (LEA), backfat thickness (BF), daily feed intake (FI), feed conversion ratio (FCR) and re...
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The difficulties and costs of measuring individual feed intake in dairy cattle are the primary factors limiting the genetic study of feed intake and utilisation, and hence the potential of their subsequent industry-wide applications. However, indirect selection based on heritable, easily measurable, and genetically correlated traits, such as conformation traits, may be an alternative approach t...
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The importance of milk proteins and the positive effect of administration of growth hormone (GH) on milk production, and the presence in some dairy cattle lines of greater GH concentrations prompted us to examine the presence of restriction fragment length polymorphism at the GH gene using the restriction enzyme TaqI and to investigate associations between this polymorphism in Simmental cows an...
متن کاملStudy of Relationships Between Production and Fertility Traits in Dairy Cattle Using Molecular Data
Selection strategies focusing on milk yield in dairy cattle have generally led to a decline in fertility (Pryce et al. 2004). This fact is due to an antagonistic relationship between production and reproduction, which has been proven via the estimation of genetic correlations in quantitative genetic studies (e.g. König et al. 2009). Novel molecular techniques can be used to get a deeper insight...
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STATs are a group of transcription factors that mediate actions of a variety of peptide hormones and cytokines within target cells (for example, prolactin and growth hormone). Therefore, STAT5A gene is a candidate marker for quantitative traits in farm animals with respect to milk production traits. In this study the STAT5A/AvaI polymorphism was investigated with PCR-RFLP in a sample of 233 Ita...
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ژورنال
عنوان ژورنال: Translational Animal Science
سال: 2021
ISSN: 2573-2102
DOI: 10.1093/tas/txab111