Application of multivariate discriminant analysis for differentiation between Saudi sheep () breeds based on physical and histochemical meat characteristics.

Background And Aim: The multivariate discriminant (MVD) analysis was a successful statistical tool with a discriminatory capacity for tracing sheep breeds based on meat characteristics. Thus, this study aimed to identify three Saudi sheep breeds based on the physical and histochemical aspects of meat using MVD analysis.

Materials And Methods: Eight male lambs from each breed, Najdi, Neami, and Harri, were selected randomly at 90 days of age and allocated into three groups for breeding in a completely randomized design.

Power of phenotypes in discriminating Awassi sheep to pure strains and from other breeds.

The phenotypic description is the oldest method for animal taxonomic studies. In this study, we report phenotypic traits of discriminant power to assign sheep individuals into Awassi breed or other exotic breeds found in Jordan. Twenty-two and 19 phenotype traits for ewes and rams, respectively, were utilized using multivariate and discriminant analyses.

The wild species genome ancestry of domestic chickens.

Background: Hybridisation and introgression play key roles in the evolutionary history of animal species. They are commonly observed within several orders in wild birds. The domestic chicken Gallus gallus domesticus is the most common livestock species.

Microsatellite-Based Genetic Structure and Diversity of Local Arabian Sheep Breeds.

The genetic diversity of the sheep breeds in the Arab countries might be considered to be a mirror of the ecology of the region. In this study, the genetic structure and diversity of sheep breeds from Saudi Arabia (Harri, Najdi, Naemi, Arb, and Rufidi) and Awassi sheep from Jordan as an out-group were investigated using 19 microsatellites. All the breeds had high intra-population genetic diversity expressed as allelic number (7.

Whole-Genome Resequencing of Red Junglefowl and Indigenous Village Chicken Reveal New Insights on the Genome Dynamics of the Species.

The red junglefowl is the main progenitor of domestic chicken, the commonest livestock species, outnumbering humans by an approximate ratio of six to one. The genetic control for production traits have been well studied in commercial chicken, but the selection pressures underlying unique adaptation and production to local environments remain largely unknown in indigenous village chicken. Likewise, the genome regions under positive selection in the wild red junglefowl remain untapped.

Genetic origin of goat populations in Oman revealed by mitochondrial DNA analysis.

The Sultanate of Oman has a complex mosaic of livestock species and production systems, but the genetic diversity, demographic history or origins of these Omani animals has not been expensively studied. Goats might constitute one of the most abundant and important domestic livestock species since the Neolithic transition. Here, we examined the genetic diversity, origin, population structure and demographic history of Omani goats.

Effects of concentration of corn distillers dried grains with solubles and enzyme supplementation on cecal microbiota and performance in broiler chickens.

With the increasing production of ethanol for biofuels, a by-product of corn-based ethanol fermentation, dried distillers grains with solubles (DDGS) is finding its way into the feed of agricultural animals including cattle, pigs, poultry, sheep, goats, aquaculture species and horses. Corn DDGS contains very high levels of non-starch polysaccharides and could be considered a good source of fibre. Despite knowledge of the role of the fibre in modulating intestinal microbiota and consequently influencing health, there is currently little information on the interactions between DDGS and intestinal microbiota.

The effect of corn distiller's dried grains with solubles (DDGS) fortified with enzyme on growth performance of broiler.

The objective of the current study was to investigate the effect of corn distiller's dried grains with solubles (DDGS) and enzyme supplementation on growth performance and carcass yield in broiler chickens. The experiment was a 5 × 3 factorial design with 450 broiler chickens and with diets containing five levels of DDGS (0, 6, 12, 18, and 24%) and three levels of the enzymes (no supplementation, Rovabio® enzyme, and Tomoko® enzyme). Five pens with six chicks were fed an experimental diet from 0 to 35 days of age.

A survey of mycotoxin contamination and chemical composition of distiller's dried grains with solubles (DDGS) imported from the USA into Saudi Arabia.

Distiller's dried grains with solubles (DDGS) is a source of nutritional feedstuff for poultry farmers and industry. The DDGS is a by-product of ethanol industry and an economical feed source of energy, amino acids, crude fiber, minerals, and vitamins. The use of DDGS as a feed ingredient is a novel idea and little information is available on its dietary composition.

The differentiation of camel breeds based on meat measurements using discriminant analysis.

The meat productivity of camel in the tropics is still under investigation for identification of better meat breed or type. Therefore, four one-humped Saudi Arabian (SA) camel breeds, Majaheem, Maghateer, Hamrah, and Safrah were experimented in order to differentiate them from each other based on meat measurements. The measurements were biometrical meat traits measured on six intact males from each breed.

Phylogeny and evolutionary analysis of goat breeds in Jordan based on DNA sequencing.

Phylogeny and evolutionary analyses were performed for Jordan goat breeds based on DNA sequencing. DNA segment of 0.5-kb from sixteen goat individuals of four breeds was sequenced.