In this study, POU1F1 gene polymorphism was detected in five sheep populations (large-tailed Han, small-tailed Han, Yuxi fat-tailed, Lanzhou large-tailed, and Mongolian sheep), using DNA pooling and sequencing, to provide theoretical basis for the breeding of excellent sheep varieties. Three single-nucleotide polymorphism (SNP) loci of POU1F1 gene were detected in five sheep populations, namely...

BACKGROUND The progression of scrapie is known to be influenced by the amino acid polymorphisms of the host prion protein (PrP) gene. There is no breeding programme for TSE resistance in sheep in Finland, but a scrapie control programme has been in place since 1995. In this study we have analysed PrP genotypes of total of 928 purebred and crossbred sheep together with the data of scrapie survey...

Flystrike in sheep is a life-threatening condition whereby fly larvae, primarily Lucilia cuprina, infest the flesh, often in the moist, wrinkled, breech area. Mulesing is currently the main method for preventing breech flystrike of sheep in Australia. Although the combination of topical anaesthetic and long-acting non-steroidal anti-inflammatory drugs (NSAIDs) – carprofen was demonstrated to gi...

The Garole is the only known prolific sheep breed in India and is a native of Sunderban, the swampy delta region of West Bengal [1]. Malpura is a popular mutton-type breed of semi-arid tropical region of India. These sheep are known for their hardiness and adaptability to the local environment but prolificacy is low with ewes usually producing single lambs. Increasing prolificacy of the Malpura...

About the authors Dr John Karlsson is a researcher and farmer interested in improving animal production and sustainability via genetic selection. Over the last 30+ years his work has predominantly revolved around optimum production and developing Merino Sheep fit for the local environment including breeding for parasite resistance. Until his recent retirement he was a Senior Veterinary Officer ...

RORA (RAR-Related Orphan Receptor Alpha) regulates estrogen synthesis by transcribing steroid related genes. Litter size is an important reproductive trait associated with synthesis. Therefore, it critical to investigate the relationship between gene and sheep litter size. In this study, a 23 base pair nucleotide sequence mutation in called effect of on productivity offspring were investigated....

The genotypes for calpastatin (CAST) and calpain (CAPN) loci were determined by PCR-RFLP and PCRSSCPmethods. Blood samples were collected from 200 pure-bred Zel sheep from Shirang’s Zel sheep Breeding Station located in south-west of Golestan, Iran. Extraction of genomic DNA was performed based on the modified salting out method. Based on results, two investigated loci were polymorphic an...

The accurate identification of sheep is crucial for breeding, behavioral research, food quality tracking, and disease prevention on modern farms. As a result the time-consuming, expensive, unreliable problems traditional sheep-identification methods, relevant studies have built face recognition models to recognize through facial images. However, existing such as high computational costs, large ...