This study was looking for the effects of energy levels and growth performance on physical characteristics Iranian lambs’ meat. Forty-eight male lambs (initial BW 31.6kg) 5-month age were assigned to a completely randomized design with factorial method includes fattening periods (12weeks 15weeks) metabolism (ME) (2.36 2.62 ME M cal/kg DM intake). Diets iso-nitrogenous (14.1 percent crud protein...

The use of terminal sires (TS) for crossbreeding is integral to the UK sheep industry where approximately 71% of market lambs are sired by TS rams. Early growth of these crossbred lambs affects profitability. The objectives of this study were i) to evaluate the effectiveness of index selection among TS on BW and ADG of their crossbred offspring; and ii) to compare the efficacy of that selection...

The study on availability of cow colostrum (C) and cow colostrum protein concentrate (CC) derived from membrane filtration was conducted on Olkuska breed lambs. The lambs were assigned to 4 groups receiving IgG addition in cow colostrum or colostrum concentrate: group I – control, group II – 7.49g IgG in 150 ml C, group III – 7.09 IgG in 125 ml CC, and group IV – 14.18 IgG in 250 ml CC. The lam...

The IgG1 concentrations in two-day-old lambs were significantly correlated with litter size, date of lambing, length of gestation and age of the dam. When these and other effects were allowed for significant breed differences were found, the concentrations being relatively high in Finnish Landrace, Welsh Mountain and Soay lambs, and relatively low in Border Leicester, Oxford Down and Southdown ...

protein oxidationm.longissimus dorsi andm. semimembranosuswas studied in ram lambs of northeastern bulgarian fine wool breed and cross of this breed with ile de france, reared and in doors and on pasture.the degree of protein oxidation is determined by measuring the content of carbonyls, formed during the storage of the investigated muscles at low temperatures(4˚с till6thday and -20˚с till90thd...

Breed diversity is a valuable resource of the sheep industry. Crossbreeding systems use breed diversity to increase productivity relative to purebred flocks. Crossbreeding systems vary in managerial complexity and in use of beneficial effects due to crossbred ewes and lambs. Efficiency of meat production is maximized in terminal crossbreeding systems by use of specialized sire breeds to complem...

The present study aimed to evaluate the effect of freezing and frozen storage duration (1 4 months) on chemical composition technological properties lamb meat. Meat samples from Musculus Longissimus thoracis et lumborum were collected Bulgarian Dairy Synthetic Population their crosses with Ile-de-France Mouton Charollais breed, a slaughtering weight 22-23 kg. Samples in freezer at -18 ??. Froze...

lamb survival is one of the major factors affecting overall sheep productivity. lamb survival affected by environmental effect such as management, birth-type, year, season of birth, dam-age, maternal behavior, genotype of parents, and birth-weight. the data comprised 9989 records were collected from 1989 to 2009 in iranian baluchi sheep at abbasabad sheep breeding station. four binary traits cr...

BACKGROUND This study examined the effects of dietary supplementation with rice bran, sire breed and gender on live animal performance and carcass characteristics in Australian crossbred and purebred Merino lambs. METHODS Forty-eight lambs balanced by sire breed (Dorset, White Suffolk, Merino) and gender (ewe, wether) were randomly allocated into three dietary supplementation groups (Control-...