this study was conducted to investigate the effects of different levels of zinc sulfate and chromium picolinate on the performance, immune response and meat quality of japanese quails under heat stress condition. the birds (n = 540; 7-d-old) were randomly assigned to 9 treatment groups consisting of 3 replicates of 20 birds each in a 3 × 3 factorial arrangement of treatments [zinc (0, 40, 80 mg...

The main objective of this study was to compare the effect supplementing beef cattle with Desmanthus virgatus cv. JCU2, D. bicornutus JCU4, leptophyllus JCU7 and lucerne on in vivo methane (CH4) emissions measured by open-circuit respiration chambers (OC) or GreenFeed emission monitoring (GEM) system. Experiment 1 employed OC utilized sixteen yearling Brangus steers fed a basal diet Rhodes gras...

This experiment was conducted to determine the effects of replacing corn by 20% barley supplementedwith probiotic, prebiotic and antibiotic on performance, immune response, intestinal morphology, carcass development and nutrient digestibility of broilers. Four hundred Ross 308 one day-old broiler chicks were assigned randomly to 5 dietary treatments and were tested for 42 days in a com...

Two hundred 1-day-old commercial broilers (Ross 308) were used to determine the effects of diets supplementation with waste date's vinegar (WDV) on the growth and performance of digestive tract over a 42-days growing period. Chicks were randomly allocated to one of five experimental diets supplementing as 0 (control), 1, 2, and 3% of WDV and 2% industrial vinegar (IV). Broilers and their feed c...

Abstract In the beef cattle system, liver abscesses are most common abnormality and leading cause for condemnations at slaughter. Virginiamycin (VM) has been used to prevent sub-acute ruminal acidosis (SARA) subsequently control abscess incidence. This study observed interrelationship between VM inclusion (240 mg/hd/d), pH dynamics, hepatic blood metabolites over a 150-d feeding trial. Housed i...