Teaching, research, and herd breeding applications may require calculation of breed additive contributions for direct and maternal Brazilian Journal of Genetics Calculation of breed direct and maternal ... http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-845519... 2 of 14 5/2/2008 1:54 PM genetic effects and fractions of heterozygosity associated with breed specific direct and mater...

AIM In Sultanate of Oman, goats are considered as one of the most important livestock in which there are many breeds of goat such as Batinah, Jabali, Dhofari, Jabal Al-Akhdar, Sahrawi, and Sahrawi Musandam. Little hematological and biochemical information is known on Omani goat breeds; therefore, the main purpose of this study was to determine reference baseline data regarding hematological and...

Future progress in genetic improvement and the monitoring of genetic resources in beef cattle requires a detailed understanding of the population under selection. This study examines the gene flow in the UK beef population with an uncommon breeding structure involving interaction between the beef and dairy populations. British Cattle Movement Service records were used as the primary source of i...

China is one of the principal origins of ponies in the world. We made a comprehensive analysis of genetic diversity and population structure of Chinese ponies based on 174 animals of five indigenous Chinese pony breeds from five provinces using 13 microsatellite markers. One hundred and forty-four alleles were detected; the mean number of effective alleles among the pony breeds ranged from...

The effects of age on lipogenic and lipolytic activities in several breeds of swine were investigated. Females from a contemporary line and genetically selected populations of lean and obese pigs were utilized. Subcutaneous adipose tissue samples were taken from the shoulder area of nonfasted animals at 28-day intervals from 3 to 6 months of age for determination of in vitro lipogenic, lipolyti...

The objective of this review is to explore the current developments on major genes working on prolific sheep breeds and the mechanism behind it, while identifying the future working points. Productivity is the ultimate goal of farm animal production and prolificacy is a key feature in determining productivity in farm animals. Ovulation rate in mammals is an intricate process involving genetics ...

Over thousands of years humans changed the genetic and phenotypic composition of several organisms and in the process transformed wild species into domesticated forms. From this close association, domestic animals emerged as important models in biomedical and fundamental research, in addition to their intrinsic economical and cultural value. The domestic rabbit is no exception but few studies h...

Single nucleotide polymorphisms (SNPs) are the most abundant form of DNA polymorphism which can be used as simple genetic markers for many breeding applications as well as for population studies. SNPs in fecundity (Fec) genes viz. BMPR1B, GDF9 and BMP15 were genotyped in Indian goat breeds to assess their basic population parameters and genetic structuring, using simple and economical methods o...

A genetic correlation near unity between ovulation rate in heifers and later twinning frequency led to consideration of using measures of ovulation rate in heifers for each estrous cycle, beginning at puberty, to increase accuracy of selection for twinning rate. An initial evaluation with a multiple trait animal model for predicting breeding values included six genetic groups: 1) selected Scand...

The genetic diversity of modern populations domestic animals is very important for improving breeds, their adaptation to various environmental conditions, as well obtaining high-quality livestock products, in particular meat. calpastatin gene (CAST) considered one the promising markers growth intensity and meat quality. article presents an analysis literature review on CAST sheep from following...