نتایج جستجو برای: livestock breeds

تعداد نتایج: 31466  

Journal: :Animal genetics 2016
J L Williams S J G Hall M Del Corvo K T Ballingall L Colli P Ajmone Marsan F Biscarini

Local breeds of livestock are of conservation significance as components of global biodiversity and as reservoirs of genetic variation relevant to the future sustainability of agriculture. One such rare historic breed, the Chillingham cattle of northern England, has a 350-year history of isolation and inbreeding yet shows no diminution of viability or fertility. The Chillingham cattle have not ...

2016
Caihong Wei Huihua Wang Gang Liu Fuping Zhao James W. Kijas Youji Ma Jian Lu Li Zhang Jiaxue Cao Mingming Wu Guangkai Wang Ruizao Liu Zhen Liu Shuzhen Zhang Chousheng Liu Lixin Du

Tibetan sheep have lived on the Tibetan Plateau for thousands of years; however, the process and consequences of adaptation to this extreme environment have not been elucidated for important livestock such as sheep. Here, seven sheep breeds, representing both highland and lowland breeds from different areas of China, were genotyped for a genome-wide collection of single-nucleotide polymorphisms...

2014
B Chuluunbat P Charruau K Silbermayr T Khorloojav P A Burger

The tradition of animal husbandry in the context of a nomadic lifestyle has been of great significance in the Mongolian society. Both Bactrian camels and horses have been invaluable for the survival and development of human activities in the harsh arid environment of the Mongolian steppe. As camels offer unique and sustainable opportunities for livestock production in marginal agro-ecological z...

Journal: :Acta Fytotechnica et Zootechnica 2022

Developments in sequencing and SNP chip technologies have enabled scientists to obtain high-density genomic data from different livestock species, including cattle. Moreover, many bioinformatics tools are available analyse data. Via these tools, several statistical approaches such as Principal Component Analysis clusterin-based analyses could be conducted reveal the genetic structure of cattle ...

Journal: :Journal of animal science 2010
C S Welsh T S Stewart C Schwab H D Blackburn

Globally, genetic diversity of livestock populations is contracting. Knowing the true extent of the contraction is needed to develop effective conservation strategies. Although contractions of genetic diversity have been documented at the breed level, little within breed documentation has occurred. This situation is no different for US swine breeds. Therefore, the objective of this study was to...

2014
Sydur Rahman

The present cattle population of Bangladesh is 24.17 million (DLS, 2009). More than 80 percent of this cattle population is indigenous and rests of them are purebreds and crossbreds of different exotic breeds (Friesian, Jersey and Shahiwal) cattle, which is contributing a major share of livestock sub-sector and playing multi-functional roles (supply of milk, meat, skin, manure, carting etc.) in...

Journal: :Agriculture 2022

The livestock of Pakistan includes different animal breeds utilized for milk farming and exporting worldwide. Buffalo have a high production rate, is the third-largest milk-producing country, its increasing over time. Hence, it essential to recognize best breed milk- meat yield meet world’s demands production. has second-largest number buffalos among countries worldwide, where Neli-Ravi most co...

Journal: :Animal 2021

Under a climate change perspective, the genetic make-up of local livestock breeds showing adaptive traits should be explored and preserved as priority. We used genotype data from ovine 50 k Illumina BeadChip for assessing breed autozygosity based on runs homozygosity (ROH) fine-scale structure detecting genomic regions under selection in 63 Tunisian sheep samples. The average inbreeding coeffic...

Journal: :Sustainability 2021

Cattle populations arrived in Southern Africa almost 2000 years ago, brought by farming communities migrating southwards. For centuries, cattle have been an integral component of livestock production to meet the animal protein needs a growing population and they are also important many cultural religious events, as repositories wealth signifiers social status. Selection within these led develop...

Journal: :Randwick International of Social Science Journal 2023

The enhancement of the income s is expected to have an impact on welfare cattle breeders in Karo Regency. focus this paper decide factors that influence respondents’ grow Cattle business better It also was conducted Tigapanah District, Tigabinanga District and Dolat Rakyat Regency with using 78 respondents. results showed breeds, feed, labor selling cost livestock were had a notable result Rege...

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