Crossbreeding of Holstein-Friesian dairy cows with both early maturing (e.g. Aberdeen Angus (AA)) and late maturing (e.g. Belgian Blue (BB)) beef breeds is commonly practised. In Ireland, genetic merit for growth rate of beef sires is expressed as expected progeny difference for carcass weight (EPD(CWT)). The objective of this study was to compare the progeny of Holstein-Friesian cows, sired by...

In order to estimate genetic parameters for body weights and carcass yield of 2 strains of quails; 32 pairs of Japanese quail (coturnix Japanese) and 26 pairs of range quail (coturnix ypisilophorus) randomly were selected from the base populations of parents. Produced progenies (650 birds) were used to estimate the genetic parameters of body weights and carcass characteristics traits. Body weig...

Thirty-two Santa Inês male lambs, not castrated, were distributed in a randomized block design to evaluate the effects of different tropical forage cultivars (two Panicum maximum (Syn. Megathyrsus maximus): Aruana and Massai, two Brachiaria brizantha Urochloa brizantha) Marandu Piatã) on carcass characteristics, quality, physical composition, meat chemistry. The data subjected an analysis varia...

the effects of feeding diets containing salbutamol (0, 1, 3, 5 and 7 mg/kg diet) from 21 to 49 days of ageon growth performance and carcass characteristics in 180 male and 180 female japanese quails (coturnixjaponica) were studied using a factorial arrangement based on completely randomized design. gender hadsignificant effect on weight gain (pwere not statistically significant (p>0.05). salbut...

The effect of genotype, sex and hatch on carcass traits and physical characteristics of eggs was investigated in the Japanese quail. Two strains of Japanese quails including the White (P1) and Wild (P2) genotypes were chosen as the parental generation and crossed reciprocally (10 singlepair mating) to create the F1 progeny. The F1 birds (27 males and 81 females) were mated randomly to produce t...

Live animal and carcass data were collected from market barrows and gilts (n = 119) to determine the accuracy and precision of using a single longitudinal scan, parallel to midline, in estimating body and carcass composition. Data from test pigs (n = 96) were used to develop prediction equations. Best results were obtained in predicting weight of boneless cuts (ham, loin, and shoulder), weight ...

Fifty merino wethers (liveweight range from 44 to 81kg, average of 58.6kg) were lot fed for 42d and scanned through a dual X-ray absorptiometry (DXA) as both a live animal and whole carcass (carcass weight range from 15 to 32kg, average of 22.9kg) producing measures of total tissue, lean, fat and bone content. The carcasses were subsequently boned out into saleable cuts and the weights and yiel...

The objective of this study was to determine the effects of dietary administration of a badrenergic agonist (BAA; L-644,969) and male sex condition (ram vs wether) on muscle growth and meat quality of Dorset × Romonov lambs believed to be heterozygous for the callipyge gene. At approximately 17 wk of age, lambs were blocked by weight within each sex condition and randomly assigned to BAA treatm...