twenty four male lambs divided into four groups and were allocated to 90, 105, 120 and 135 days of fattening periods.at the end of each fattening period, lambs were slaughtered. the percentage of cold carcass on the basis of empty body weight in the mentioned periods were 57.0 ± 0.94, 57.5 ±1.7, 59.9 ±3.3 and 62.2 ±4.4,respectively(p

this experiment was conducted using 172 male lambs of ghezel and mehraban breeds for two periods of 60 and 80 days. two systems of fattening were studied. the first group of lambs entered feedlot boxes immediately after weaning (spring) but the second group being fed on pasture, entered the experiment approximately 4 months later (autumn). fattening periods were 60 and 80 days. the average wean...

The study examined the effect of raw and roasted cereals (corn, oat and barley) and soybean in diet on growth performance and blood parameters of lambs fattening. Totally 60 lambs after ablactation at average of 50 days, were tested and equally divided into three groups: an experimental I (E I), experimental II (E II) and a control (C) group. The fattening period lasted 56 days. Lambs of the C ...

a study was conducted to evaluate effects of age at weaning on various growth characteristics and stress measures of zandi lambs. the lambs were weaned at 45 and 90 days of age. the body weights and average daily gain (adg) were monitored during the experimental period and 5 months of age. cortisol, glucose, blood urea nitrogen (bun) and lamb behavior (agitation, vocalization) were recorded bef...

A total of 1,159 Tiris half-duplex passive injectable transponders (PIT) of 32-mm length were used to study the electronic identification of 618 fattening lambs of two breeds used for different production purposes (Ripollesa, meat breed, n = 271, and Manchega, dairy breed, n = 347). The lambs were s.c. injected in the armpit and the retro-auricular positions at 2, 15, and 30 d of age. All lambs...

This research investigated the effect of stress mid-pregnancy shorn Zandi ewes on live birth weight and body sizes twin lambs. A total 96 ewes, confirmed pregnant with twins, were randomly allocated day 80 pregnancy into 4 groups, each group containing 6 replicates (each replicate sheep). The experimental groups included: 1. Control, 2. Crutched, 3. Sham-Shorn, 4. Shorn. Blood cortisol concentr...

The aim of this study was to evaluate the effect sex on fattening performance and carcass characteristics Kivircik lambs. Fifty head weaned lambs, half males females, were used in period. After weaning, growth feed consumption male female lambs fattened for 56 days recorded. Average daily weight gain differed significantly (P

in order to investigate the effect of diets contained urea and molasses on fattening performance and blood urea nitrogen (bun) density of male lambs, 72 arabic male lambs were used in a completely randomized design with a 3×4 factorial experiment, for 90 days. the experimental diets contained; 0, 0.5, 1 and 1.5% of urea each with 0, 7.5 and 15% of molasses, in isoprotein and isocalaric diets. t...

The purpose of this study was to investigate the effect of different corn processing methods on rumen microbial flora, histomorphometry and fermentation in fattening male lambs. Twenty male lambs (average age and weight of 90 days and 25.00 ± 1.10 kg, respectively) were used in a completely randomized design including four treatments and five replicates each over 80 days long period: 1) Lambs f...