background and aims: finding prevalence of chicken anemia virus (cav) infection in native chickens is necessary to avoid transmission of infection to commercial flocks. in this paper we attempt to describe molecular detection of chicken anemia virus in native larry-breed chickens in chaharmahal-va-bakhtiyari province in iran for the first time. materials and methods: blood samples were collecte...

This paper concerns the likely origin of three mutations with large effects on ovulation rate identified in the Belclare and Cambridge sheep breeds; two in the BMP15 gene (FecX(G) and FecX(B)) and the third (FecG(H)) in GDF9. All three mutations segregate in Belclare sheep while one, FecX(B), has not been found in the Cambridge. Both Belclare and Cambridge breeds are relatively recently develop...

Previous studies on mitochondrial DNA analysis of sheep from different regions of the world have revealed the presence of two major- A and B, and three minor- C, D and E maternal lineages. Lineage A is more frequent in Asia and lineage B is more abundant in regions other than Asia. We have analyzed mitochondrial DNA sequences of 330 sheep from 12 different breeds of India. Neighbor-joining anal...

This short history of the Dorper sheep traces its background and the steps taken to develop that breed in South Africa. The most important traits considered for the developing of the Dorper are listed and the breeding system outlined. The development of the White Dorper is also detailed and the breed improvement programs are indicated.

involved in choosing appropriate criteria and procedures for problem~ ses of breed and mating system evaluation experiments in sheep are. nom lC ana iiterature is rev1ewed of expenments 1n Wh1Ch blOlog1cal or econom1C scn bed . has been investigated. The .range in relative economic merit from the lCl ency the best group in an expenment tYP1cally 1S from 100 to 120, w1th rest to 140 not uncommon...

Serum biochemical traits constitute important panels in the clinical diagnosis, prognosis and treatment of livestock diseases via the investigations of myriads of parameters influencing these biochemical references. Sixty clinically healthy animals of three extant breeds of Nigerian native sheep (20 Balami: 20 Yankassa and 20 Uda) were sampled to examine the roles of breed, age and sexual dimor...

The article presents the results of a biochemical and morphological analysis pure blood cross-bred sheep Edilbaevsky breed, born in different seasons year. parameters animals studied groups by us were within physiological norm, but there some differences between groups. It was found that redox processes body cross-breed group more intense than peers same group, which turn affected higher indica...

The objectives of this study were to 1) evaluate the genetic diversity of Navajo-Churro sheep using pedigree information; 2) examine the distribution of the Navajo-Churro population; and 3) evaluate the effect of breeder dynamics on genetic conservation of the breed. Pedigree data and breeder information (city and state) were obtained from the Navajo-Churro Sheep Breed Association. Inbreeding c...

Gastrointestinal parasites are one of the main sources of economic decline in sheep production around the world. Resistant sheep do not completely reject the disease; they only harbor fewer parasites than susceptible sheep and therefore have a lower fecal egg count. The present research was designed to evaluate microsatellite polymorphism in intron 5 of DRB2 gene and its correlation with H. con...