Results 31 to 40 of about 16,410 (115)

Inbreeding on productive and reproductive traits of dairy Gyr cattle

Revista Brasileira de Zootecnia, 2015
The objective of this study was to estimate genetic parameters and to evaluate the effects of inbreeding on productive and reproductive traits of dairy Gyr cattle.
João Cruz Reis Filho, Rui da Silva Verneque, Robledo de Almeida Torres, Paulo Sávio Lopes, Fernanda Santos Silva Raidan, Fabio Luiz Buranelo Toral   +5 more
doaj   +1 more source

Estimation of Inbreeding Coefficient and Its Effects on Lamb Survival in Sheep

پژوهشهای علوم دامی ایران, 2016
Introduction The mating of related individuals produces an inbred offspring and leads to an increased homozygosity in the progeny, genetic variance decrease within families and increase between families.
mohammad almasi, Amir Rashidi, Mohammad Razmkabir, mohammad mehdi gholambabaeion   +3 more
doaj  

Reduction of inbreeding in commercial females by rotational mating with several sire lines

Genetics Selection Evolution, 2004
A mating system to reduce the inbreeding of commercial females in the lower level was examined theoretically, assuming a hierarchical breed structure, in which favorable genes are accumulated in the upper level by artificial selection and the achieved ...
Mukai Fumio, Nomura Tetsuro, Honda Takeshi   +2 more
doaj   +1 more source

Fine-tuning genomic and pedigree inbreeding rates in equine population with a deep and reliable stud book: the case of the Pura Raza Española horse

Journal of Animal Science and Biotechnology, 2022
Background Estimating inbreeding, which is omnipresent and inevitable in livestock populations, is a primary goal for management and animal breeding especially for those interested in mitigating the negative consequences of inbreeding.
Davinia Isabel Perdomo-González, Nora Laseca, Sebastián Demyda-Peyrás, Mercedes Valera, Isabel Cervantes, Antonio Molina   +5 more
doaj   +1 more source

Estimate of Inbreeding Coefficient and Its Effects on Reproductive Traits of Dairy Herds in Isfahan Province

پژوهشهای علوم دامی ایران, 2016
This study was carried out to study the inbreeding coefficient and its effect on reproductive performance of dairy cows (age at first calving, calving interval and open days) in Isfahan province.
S. Gholizadeh, S. Ansari-Mahyari, A. Riasi, M. Rokouei   +3 more
doaj  

The Weight of Genetic Drift: A Pedigree-Based Evaluation of the Breton Horse Population in Brazil

Veterinary Medicine International
The genetic diversity of Breton horses in Brazil is a critical concern, mainly due to the small population size and low number of births per year. Given that the inbreeding was overlooked by breeders for multiple generations, we estimated the genetic ...
Bruno B. Medeiros, Kate M. C. Barcelos, Millena Oliveira Andrade, Michele Cristina da Paz Carvalho, Victoria Rocha Miranda, Kalebe de Oliveira Maia, Susana Reinhardt, Laura Patterson Rosa   +7 more
doaj   +1 more source

An indirect approach to the extensive calculation of relationship coefficients

Genetics Selection Evolution, 2002
A method was described for calculating population statistics on relationship coefficients without using corresponding individual data. It relied on the structure of the inverse of the numerator relationship matrix between individuals under investigation ...
Colleau Jean-Jacques
doaj   +1 more source

LEVEL OF INBREEDING IN JERSEY COWS IN PUNJAB

Pakistan Veterinary Journal, 2002
Pedigree, breeding and performance records of the purebred Jersey herd maintained at the Livestock Experiment Station, Bhunikey (Pattoki) Kasur during the period 1982-2000 were utilized for the present study.
Riaz Hussain Mirza, Abdul Sattar and Khalid Javed
doaj  

Analysis of Czech cold-blooded horses: genetic parameters, breeding value and the influence of inbreeding depression on linear description of conformation and type characters

Czech Journal of Animal Science, 2011
Genetic parameters, breeding values and inbreeding depression for 22 linear type description of conformation and type characters and 4 body measurements were evaluated in a group of 1744 horses of three original cold-blooded breeds in the Czech Republic ...
L. Vostrý, Z. Čapková, J. Přibyl, K. Mach   +3 more
doaj   +1 more source

FnR: R package for computing inbreeding and numerator relationship coefficients

BMC Ecology and Evolution
Background Inbreeding and relationship coefficients are essential for conservation and breeding programs. Whether dealing with a small conserved population or a large commercial population, monitoring the inbreeding rate and designing mating plans that ...
Mohammad Ali Nilforooshan
doaj   +1 more source