Bayesian estimates of genetic parameters for pre-conception traits, gestation length and calving interval in beef cattle

Yagüe, G.; González, Juan José Becerra; Moreno, C.; Sánchez, L.; Altarriba, J.

doi:10.1016/j.anireprosci.2008.09.015

Cited by 29 publications

(22 citation statements)

References 26 publications

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“…The repeatability estimates of all traits were twice as high as heritability estimates, indicating an important effect of the permanent environmental components on each of the studied trait. The results of the present study on repeatability estimates were in agreement with the repeatability values estimated by Yagüe et al (2009) for fertility traits in beef cows using the Bayesian methodology. Most of the genetic correlations among fertility traits obtained in the current study were high and positive, in agreement with those found by other researchers for similar traits (Campos et al, 1993; Gonzàlez- Large permanent environmental correlation estimates (0.6-0.83) were found among fertility traits, except for DFI with FIC and NI, where estimates were low and negative.…”

Section: Discussionsupporting

confidence: 78%

Genetic parameters of reproductive traits in Tunisian Holsteins

et al. 2016

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Abstract. Multi-trait Bayesian procedure was used to estimate genetic parameters for reproductive traits in Tunisian Holstein cows. A total of 31 348 lactations of the calving years 2005 to 2012 were analyzed. Fertility traits were the calving interval (CI), days open (DO), days to first insemination (DFI), days from first insemination to conception (FIC), and number of inseminations per conception (NI). Posterior means of heritabilities of CI, DO, DFI, FIC, and NI were 0.047, 0.03, 0.025, 0.024, and 0.069, respectively. Posterior means of repeatabilities of the same respective traits were 0.106, 0.094, 0.051, 0.036, and 0.17. Genetic correlations among female fertility traits were also computed. Calving interval and DO had the highest genetic correlation estimate (0.85) because they have overlapping genetic meanings. The lowest genetic correlation estimate ( − 0.25) was found between DFI and NI. Genetic parameter estimates are low and are even lower than those reported in most literature, implying that more focus should be put upon improving the management of reproduction in dairy cattle herds in Tunisia.

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Section: Discussionsupporting

confidence: 78%

Genetic parameters of reproductive traits in Tunisian Holsteins

et al. 2016

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“…Azevêdo et al (2006b), para vacas Nelore brasileñas, y Yagüe et al (2009), para vacas Rubia Gallega españo-las, reportaron que los días abiertos tuvieron una heredabilidad cercana a cero (0,05, 0,07, respectivamente), lo cual es acorde con lo encontrado en el presente estudio. Por el contrario, Núñez (2006) encontró que la heredabilidad para servicios por concepción en vacas de doble propósito (Holstein, Pardo Suizo y Simmental x Cebú) en condiciones tropicales de México fue prác-ticamente nula, con un valor de 0,006.…”

Section: Servicios Por Concepciónunclassified

“…Sin embargo, dichos estimadores muestran una considerable variabilidad con magnitudes que van de 0,002 (Manatrinon et al 2009) y 0,04 (Yagüe et al 2009) hasta 0,12 (Azevêdo et al 2006b) y 0,15 (van Graan et al 2004), pasando por valores intermedios de 0,07 (Cervantes et al 2010) y 0,09 (Crews 2006). La duración de la gestación es una característica importante porque las vacas con gestaciones más cortas tienen más tiempo para recuperarse y ciclar nuevamente, además de que sus crías disponen de un periodo más largo para alimentarse de leche materna.…”

Section: Duración De La Gestaciónunclassified

“…El bajo estimador de heredabilidad en este caso, concuerda con los reportados para las razas productoras de carne Japonés Negro (Oyama et al 2002) y Rubia Gallega (Yagüe et al 2009). Por el contrario, para la raza española Asturiana de los Valles, Goyache et al (2005) encontraron que días abiertos es una característica reproductiva con considerable variabilidad genética, en relación con lo que usualmente se ha encontrado para características reproductivas, especialmente para vaquillas y vacas de segundo parto.…”

Section: Días Abiertosunclassified

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Heredabilidad de características reproductivas de vacas Indubrasil.

et al. 2013

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“…Analyses were carried out, for the first time in this breed, using a Bayesian methodology that is still rarely applied in these livestock (Yagüe et al, 2009).…”

Section: Discussionmentioning

confidence: 99%

Cytoplasmic line effects for birth weight and preweaning growth traits in the Asturiana de los Valles beef cattle breed

2012

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A total of 15,645 records of birth weight (BrW), weaning weight (WW) and average daily gain (ADG) from 6055 cows belonging to 2121 different dam lines were analyzed to quantify the contribution of cytoplasmic line (l) effects to phenotypic variance of preweaning growth traits in a sample of Asturiana de los Valles beef cattle breed. Only dam lines with 2 or more cows having performance records in the database were used. Bayesian estimates were obtained fitting eight different univariate and multivariate models defined depending on the inclusion or not of the permanent maternal environment (c) and the l effects. Univariate models that included both the c and the l effects had the best fit with data (assessed by computing the logarithm of the conditional predictive ordinate; logCPO) for BrW and ADG while for WW this was the case for the model that only included the c effect. For multivariate models, the best fit with data was obtained for the model that only included the c effect (logCPO = − 245,899) while the second "better" model was that which only include the l effect value (logCPO = − 241,108). In general, whatever the estimation model used, estimates of heritability for the direct (h 2 ) and maternal (m 2 ) genetic effects and the genetic correlation between them (r am ) obtained in the current study for BrW were slightly higher (r am more negative) than the most recent estimates reported in the breed. However, this is not true for WW and ADG when multivariate estimation models include the l effect. In these cases, estimates of h 2 and m 2 for WW and ADG tend to be lower and r am less negative than those previously estimated. In conclusion, the cytoplasmic line may have a marginal effect on growth performance in beef cattle but not sufficient in magnitude to justify including the l effect in models in beef improvement schemes.

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Bayesian estimates of genetic parameters for pre-conception traits, gestation length and calving interval in beef cattle

Cited by 29 publications

References 26 publications

Genetic parameters of reproductive traits in Tunisian Holsteins

Genetic parameters of reproductive traits in Tunisian Holsteins

Heredabilidad de características reproductivas de vacas Indubrasil.

Cytoplasmic line effects for birth weight and preweaning growth traits in the Asturiana de los Valles beef cattle breed

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