2015
DOI: 10.1017/s1751731114003140
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Sire effect on early and late embryonic death in French Holstein cattle

Abstract: We investigated the effect of maternal sire on early pregnancy failure (between D0, day of insemination and D90) in their progeny during the first and second lactations (n = 3508) in the Holstein breed. The estimated breeding value (EBV) for cow fertility of 12 bulls (reliability ⩾ 0.95) was used to create the following three groups: low, medium and high EBV (EBV from − 0.7 to 1 expressed as genetic standard deviation relative to the mean of the breed). In their daughters (93 to 516 per bull), progesterone mea… Show more

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Cited by 16 publications
(4 citation statements)
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References 49 publications
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“…Pregnancy loss was considered to be the dependent variable, and the day of pregnancy (class variable: days 28, 29, 30, 31, 32, 33, and 34), the mean length of twin pairs, and the size differential between co-twins (continuous variables), and the sex of the embryo, coded as a class variable (non-sexed, female, and male), were considered factors in the analysis. The semen-providing bull (sire of the embryo in this study), a main factor influencing pregnancy maintenance independent of its fertilizing capacity [ 51 , 52 , 53 ], was not included in the model because a large number of sires was used (14 sires). Four sires provided semen for a single pregnancy each, with six sires for two pregnancies and four sires for three or more pregnancies.…”
Section: Methodsmentioning
confidence: 99%
“…Pregnancy loss was considered to be the dependent variable, and the day of pregnancy (class variable: days 28, 29, 30, 31, 32, 33, and 34), the mean length of twin pairs, and the size differential between co-twins (continuous variables), and the sex of the embryo, coded as a class variable (non-sexed, female, and male), were considered factors in the analysis. The semen-providing bull (sire of the embryo in this study), a main factor influencing pregnancy maintenance independent of its fertilizing capacity [ 51 , 52 , 53 ], was not included in the model because a large number of sires was used (14 sires). Four sires provided semen for a single pregnancy each, with six sires for two pregnancies and four sires for three or more pregnancies.…”
Section: Methodsmentioning
confidence: 99%
“…Contrariwise, the heritability value of milk production was moderate, proposing it will be improved by direct mass selection (Malhado et al, 2013 ). There were several factors that influenced the reproduction, such as animal body condition score, dam age at insemination and insemination season (Grimard et al, 2006 ; Zobel et al, 2011 ), milk yield (Grimard et al, 2006 ; Ledoux et al, 2015 ), days in milk at insemination, calving to first service (Ledoux et al, 2015 ), and farm management (Zobel et al, 2011 ). High yielding animals were in higher risk of early and late fetal death (Abdalla et al, 2017 ).…”
Section: Introductionmentioning
confidence: 99%
“…Early embryonic mortality, defined as the death or loss of embryos within the first 27 days of gestation in cattle, is a major component of reproductive failure [1]. While the causes of early embryonic mortality are multifaceted and complex [2], inadequate or asynchronous paracrine communication between the conceptus and endometrium, particularly during maternal recognition of pregnancy (MRP), make a significant contribution to this loss [3][4][5][6].…”
Section: Introductionmentioning
confidence: 99%