A pedigree file consisting of 5860 individuals, 167 sires and 1582 dams collected at Makooei sheep breeding station (MSBS) during a period of 24 years (1990 to 2013) was used to calculate the inbreeding coefficients to reveal any probable effects of inbreeding (F) on the studied traits. The studied traits were classified to the five main groups including body weight, Kleiber ratio, body measure...

Naturally mated female New Zealand White (NZW) rabbits (24/group) received formamide (35, 70, or 140 mg/kg/day) or vehicle (1 ml/kg deionized/distilled water) by gavage on gestational days (GD) 6 through 29. The study was conducted using a 2-replicate design. Maternal food consumption (absolute and relative), body weight, and clinical signs were monitored at regular intervals throughout gestati...

The effects of feeding different levels of dried layer litter as a protein source on live weight, testicular weight, gonadal and epididymal sperm reserves of Yankasa rams was investigated in a 98day study. Twenty healthy Yankasa rams with clinically normal genitalia were divided randomly into 4 groups (A, B, C and D) of 5 rams each. Diets containing 12.11% CP, 14.96% CP and 17.94% CP were formu...

the experiment was designed to study the changes in production performance and egg quality of old laying hens after injection of different doses of growth hormone (gh) and testosterone (ts). a total of 160 old laying hens (hyline w-36) at 73 wks of age were randomly assigned to four treatments with four replicates and 10 birds in each replicate in a completely randomized design. treatment group...

The rate of gain, carcass measurements and three muscles were evaluated in 65 crossbred boars representing 13 litters that were allotted at 4 wk of age to slaughter weight and treatment groups as follows: 1) 105 kg, castrated; 2) 105 kg, intact; 3) 118 kg, intact; 4) 132 kg, intact and 5) 145 kg, intact. One barrow and four boars within a litter constituted a replicate and each replicate was pe...