Ketogenesis is the conversion of acetyl-CoA to the ketone bodies acetoacetate and beta-hydroxybutyrate (BHBA). In hepatic ketogenesis, which occurs during fasting in both nonruminant and ruminant animals, the source of acetyl-CoA is the mitochondrial oxidation of predominantly long-chain fatty acids. In the mature, fed ruminant animal, the ruminal epithelium is also capable of producing ketone ...

The cobalt-deficient diet introduced by Stewart (1947) contains flaked maize as t..is foodstuff contains very little cobalt. Experiments in which this ration was used have already been described (Phillipson & Mitchell, 1952), and examination of the rumen contents of some of the lambs involved revealed an unusual bacteriological picture (Masson, 1950, 1951), for the protozoa had disappeared from...

Baluchi sheep is the dominant fat-tail breed in Iran. We studied the microbial communities in the rumen of four Baluchi lambs fed a high concentrate conventional diet. Using DNA extracted from the rumen samples, we found the partial ribosomal rRNA of bacterial and archaeal were amplified by polymerase chain reaction (PCR). The amplicons were sequenced using 454 Titanium pyrosequencing and the d...

Baluchi sheep is the dominant fat-tail breed in Iran. We studied the microbial communities in the rumen of four Baluchi lambs fed a high concentrate conventional diet. Using DNA extracted from the rumen samples, we found the partial ribosomal rRNA of bacterial and archaeal were amplified by polymerase chain reaction (PCR). The amplicons were sequenced using 454 Titanium pyrosequencing and the d...

introduction a major constraint of animal production in south of iran is the lack of cheap source of roughages. date palm leaves (dpl) is one of the most abundant agricultural by-products in south of iran. almost all pruned leaves are discarded in the fields, mainly for nutrients recycling and soil conservation (m. wan zahari, et al1999). the yearly maintenance of date palm tree produces a (aro...

twenty-four 35-day-old lambs were distributed to a completely randomized design with 3 treatments to study the effects of number of feeding buckets per pen on performance, haematology and behaviour indicators. treatments consisted of 8 (t1), 4 (t2) or 2 (t3) feeding buckets/pen (8 lambs/pen). during the experiment, concentrate was fed at 08:30 in individual feeders. daily dry matter intake (dmi...

This experiment aims to study the effects of dietary fat level during suckling period on growth performance and meat characteristics in twin lambs. Thirty pairs male Hu lambs were divided into two groups, namely high (HF) normal (NF). Lambs HF group fed milk replacer starter containing 26.89% 5.07% fat, whereas those NF 15.15% 2.80% respectively, from eight 60 days age. From 120 age, all a feed...

Crossbreeding of four Iranian fat-tailed sheep breeds, namely Kurdi (K), Chaal (C), Afshari (A) and Sanjabi (S) was carried out to determine the ram breed effects on productivity of Kurdi fat-tailed ewes (K) under extensive production system. A total of 475 Kurdi ewes were mated to 24 rams from the above four breeds resulting in 454 lambs. Ram breed had a significant influence on early growth t...

This study was conducted to evaluate the effect of feeding treated wheat straw with urea and whey on fattening lambs performance. About 4.5 kg urea and 1.5 kg salt were dissolved in 40 L water and mixed with 30 L of whey. The solution was spread over 100 kg chopped wheat straw. Thirty two male lambs were randomly divided into four feeding groups to compare performance with diets based on barley...

The objectives of this study were to determine the effects of 0, 20, 40, or 60% dietary dried distillers grains with solubles (DDGS) on 1) growing lamb performance, carcass characteristics, and tissue minerals, and 2) nutrient digestibility and retention in growing lambs. In Exp. 1, ninety-six lambs were blocked by sex (ewes, n = 48; wethers, n = 48) and BW, housed in 24 pens (4 lambs per pen),...