Results 51 to 60 of about 16,024 (236)

Understanding natal emigration in group‐living carnivores

Journal of Animal Ecology, EarlyView.
Dispersal is a key ecological and evolutionary process, yet drivers of variation in emigration under human‐modified conditions remain understudied. Using a novel genetic approach applied to harvested grey wolves in Idaho, USA, we found that prey availability and population density shape natal emigration patterns in a cooperative breeder.
Kathleen M. Petersen, Joel M. Tebbenkamp, Matthew A. Mumma, David E. Ausband   +3 more
wiley   +1 more source

EFFECT OF INBREEDING ON SOME PERFORMANCE TRAITS IN SAHIWAL CATTLE

Pakistan Veterinary Journal, 2001
Pedigree, breeding and performance records of a purebred Sahiwal herd maintained at Livestock Experiment Station, Jahangirabad, Khanewal during the period 1939-97 were utilised for the present study. The effect of inbreeding on various performance traits
Khalid laved, Ghulam Mohiuddin1 and Muhammad Abdullah1
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

Museomics Deciphers the Phylogeographic Differentiation and Conservation Status of a Montane Pheasant

Integrative Zoology, EarlyView.
Museum specimens provide a rich source of historical DNA, enabling insights into phylogenetic relationships and demographic history of the endangered Koklass Pheasant. Our findings uncovered a previously unrecognized population in Guizhou province and highlighted elevated extinction risk in populations from Anhui province and Southern China, informing ...
Zhiyong Jiang, Yalin Cheng, Shuai Zhang, Wenqing Zang, Peng He, Dezhi Zhang, Jinjuan Mei, Peng Cui, Yanhua Qu, Hailong Wu   +9 more
wiley   +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  

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

Genomic Investigations Unveil the Genetic Underpinnings of Environmental Adaptation in African Goat Populations

Integrative Zoology, EarlyView.
This study integrates genomics and landscape genetics to analyze African goat environmental adaptation. Analyzing 1591 samples, it finds population structure differentiates geographically into four groups, with gene flow between wild Yura goats and North Africans.
Weifeng Peng, Yihua Wang, Yiyuan Zhang, Lei Gao, Lili Wu, Shuping Wang, Yiyang Gao, Wanlu Shi, Kaixin Lu, Rong Deng, Junting Li, Jing Han, Xiaohui Lu, Yujie Liu, Xiaojiao Tang, Yunxia Zhang, Guoyin Li, Li Huang, Mingsheng Yang, Xiaoyan Li   +19 more
wiley   +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  

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

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