Pedigree analysis of Iran-Black sheep and inbreeding effects on growth and reproduction traits

Mokhtari, M.S.; Shahrbabak, M. Moradi; Esmailizadeh, Ali; Shahrbabak, Hossein Moradi; Gutiérrez, Juan Pablo

doi:10.1016/j.smallrumres.2013.10.008

Cited by 44 publications

(26 citation statements)

References 21 publications

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“…Pedrosa et al (2010) found a significant inbreeding depression for BW as 3.4 g per 10% increase in Santa Inês lamb inbreeding. In addition, the findings by Ghavi Hossein-Zadeh (2012), Mokhtari et al (2014), and Eteqadi et al (2014) were not similar to the findings of the present study. Ghavi Hossein-Zadeh (2012) reported that BW was affected by inbreeding of lambs being -9 g (p<0.001).…”

Section: Discussioncontrasting

confidence: 99%

“…This finding was similar to the study by Mokhtari et al (2014) and incompatible with the study by Dorostkar et al (2012), being -37 and -291 g, respectively. Also, the WW of male, female, single and twin-born lambs was negative and non-significant decreased by 12.5 -11.0, -16.2, and -1.7 g owing to 1% increase in inbreeding, respectively.…”

Section: Discussionsupporting

confidence: 80%

“…Ghavi Hossein-Zadeh (2012) reported that BW was affected by inbreeding of lambs being -9 g (p<0.001). The inbreeding depression of BW obtained as -7 g (p<0.05) using 6,082 Iran-Black sheep records analyzed by Mokhtari et al (2014). Eteqadi et al (2014) obtained inbreeding depression of BW as -5.5 g using 14,549 Guilan lamb records over an 18-year period.…”

Section: Discussionmentioning

confidence: 99%

“…Inbreeding response is not the same for all animals. There is a wide range of variation in the literature regarding the estimation of inbreeding depression of growth traits (Mirza et al, 1999;Norberg and Sørensen, 2007;Van Wyk et al, 2009;Pedrosa et al, 2010;Ghavi Hossein-Zadeh, 2012;Eteqadi et al, 2014;Mokhtari et al, 2014).…”

Section: Introductionmentioning

confidence: 99%

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Inbreeding depression on growth traits of Iranian Lori sheep

Yeganehpur

Roshanfekr

Fayazi

et al. 2016

Rev Colomb Cienc Pecu

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SummaryBackground: Lori sheep is an Iranian heavy breed known for its superiority in terms of disease resistance, adaptability to the mountainous west of the country and meat production potential. Objective: to estimate and compare the inbreeding coefficient in Lori sheep, and its impact on growth traits. Methods: data and pedigree information were collected in Lorestan Agricultural and Natural Resources Research Center, west of Iran, during 2001-2010. Traits included were birth weight (BW), weaning weight (WW), 6-month weight (6MW) and 9-month weight (9MW). The inbreeding coefficient estimation was carried out through the CFC software, and quantification of individual inbreeding regression on the characteristics was conducted using The Wombat software. All animals were divided into four categories according to the inbreeding coefficients obtained from their pedigree: the first category included non-inbred animals (F = 0%); and the second, third, and fourth categories included inbred animals as 00.20, respectively. Results: inbreeding coefficients were 0.69% and 2.24% in the entire population and inbred population, respectively. Inbreeding regression for BW, WW, 6 MW and 9 MW were estimated as +4.5, -10.3, -76.3, and -77.4 g, respectively. The inbreeding trend was positive and significant for the whole population (0.215; p<0.001), but not significant for the inbred population. Conclusion: these results confirm a low level of inbreeding and suggest that direct controlled mating could be an appropriate method to avoid inbreeding depression.

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Section: Discussioncontrasting

confidence: 99%

Section: Discussionsupporting

confidence: 80%

Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Inbreeding depression on growth traits of Iranian Lori sheep

Yeganehpur

Roshanfekr

Fayazi

et al. 2016

Rev Colomb Cienc Pecu

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“…Pedigree analysis is an appropriate tool for the evaluation of genetic diversity of a population. This method has been commonly used for the study of the genetic variability in pig (Szab o et al 2016), sheep (Mokhtari et al 2014), cattle (Pienaar et al 2015), buffalo (Marcondes et al 2014), horse (Hasler et al 2011), donkey (Cecchi et al 2006) and in pet animals (Cecchi et al 2013). A limited number of studies have also evaluated genetic diversity of goat breeds through this method (Portolano et al 2004;Baldursdottir et al 2012;Oravcov a 2013;Rashidi et al 2015).…”

Section: Introductionmentioning

confidence: 99%

Pedigree analysis of Cashmere goat breed of South Khorasan

Joezy-Shekalgorabi

Maghsoudi

Taheri-Yeganeh

et al. 2016

Italian Journal of Animal Science

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The genealogical data of Cashmere goat breed of South Khorasan province of Iran was analysed in this study. Records from a total of 10,635 animals collected during 1988-2014 from 20 registered flocks were analysed for evaluating pedigree parameters. The reference population was defined as the living reproductive animals born from 2010 till 2014. The average inbreeding coefficient in the studied breed was about 0.07% (ranging from 0 to 25%). In addition, the average inbreeding coefficient for the reference population was about 0.85%. The main reason for the low inbreeding level obtained in Cashmere goat population was related to the extensive production system and lack of sire registration in a large number of animals (about 78% missing sire information). A total of 200 animals were inbred. The inbred animals were all related to the breeding station flock which was acting as a closed nucleus flock and was under the control of Animal Breeding and Milk Improvement Centre of Iran. The result of analysis for gene origin parameters indicated the lack of pedigree depth, which could leads to management problems for conservation of the studied breed.ARTICLE HISTORY

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Inbreeding depression causes reduced fecundity in Golden Retrievers

Chu¹,

Simpson

Diehl

et al. 2019

Mamm Genome

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Inbreeding depression has been demonstrated to impact vital rates, productivity, and performance in human populations, wild and endangered species, and in recent years, the domestic species. In all cases, standardized, high-quality phenotype data on all individuals are invaluable for longitudinal analyses such as those required to evaluate vital rates of a study cohort. Further, many investigators agree upon the preference for and utility of genomic measures of inbreeding in lieu of pedigree-based estimates of inbreeding. We evaluated the association of measures of reproductive fitness in 93 Golden Retrievers enrolled in the Golden Retriever Lifetime Study with a genomic measurement of inbreeding, F ROH . We demonstrate a statistically significant negative correlation between fecundity and F ROH . This work sets the stage for larger scale analyses to investigate genomic regions associated with fecundity and other measures of fitness.

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Pedigree analysis of Iran-Black sheep and inbreeding effects on growth and reproduction traits

Cited by 44 publications

References 21 publications

Inbreeding depression on growth traits of Iranian Lori sheep

Inbreeding depression on growth traits of Iranian Lori sheep

Pedigree analysis of Cashmere goat breed of South Khorasan

Inbreeding depression causes reduced fecundity in Golden Retrievers

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