2019
DOI: 10.1111/jbg.12457
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Non‐parametric association analysis of additive and dominance effects of casein complex SNPs on milk content and quality in Murciano‐Granadina goats

Abstract: Goat milk casein proteins (αS1, αS2, β and κ) are encoded by four loci (CSN1S1, CSN1S2, CSN2 and CSN3, respectively) clustered within 250 kb in chromosome 6. In this study, 159 Murciano‐Granadina goats were genotyped for 48 SNPs within the entire casein region. Phenotypes on milk yield and components were obtained from 2,594 dairy registries. Additive and dominance effects on milk composition and quality were studied using non‐parametric tests and principal component analysis to prevent SNPs multicollinearity.… Show more

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Cited by 11 publications
(21 citation statements)
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“…Milk yield and components were estimated until 210 days of lactation and expressed in Kg [12]. Each goat's real milk production (RP j ) was computed through the equation described in Pizarro Inostroza et al [7]. Official control policies are stated by the Royal Decree-Law 368/2005, on 8 th April 2005, regulating official milk yield controls for the genetic evaluation in the bovine, ovine, and caprine species of the Spanish Ministry of Agriculture (2005).…”
Section: Milk Yield Standardization and Composition Analysismentioning
confidence: 99%
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“…Milk yield and components were estimated until 210 days of lactation and expressed in Kg [12]. Each goat's real milk production (RP j ) was computed through the equation described in Pizarro Inostroza et al [7]. Official control policies are stated by the Royal Decree-Law 368/2005, on 8 th April 2005, regulating official milk yield controls for the genetic evaluation in the bovine, ovine, and caprine species of the Spanish Ministry of Agriculture (2005).…”
Section: Milk Yield Standardization and Composition Analysismentioning
confidence: 99%
“…Milking policies varied across farms depending on whether milking was performed every 4 or 6 weeks, during the morning or afternoon (AT4, AT4T, AT4M, A6, AT6M, and AT6T). First control (d 1 ) and the last (d 2 ) were assessed individually for every goat computing the days between the day the animal was born (BD) and the date of the first control (FC), and the days between the penultimate control (PC) and the last control (LC), respectively using the formulas in Pizarro Inostroza et al [7]. To save interindividual differences that could be ascribed to differences in milking period among other factors, birthdate information, and the date on which several controls were performed until 210 lactation days were included to normalize milk yield for each goat.…”
Section: Milk Yield Standardization and Composition Analysismentioning
confidence: 99%
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