The aims of this work were to quantify the requirements of Zn for wool growth in growing male Merino lambs, and to describe the histological lesions of Zn deficiency in skin and wool follicles. Four groups of male Merino lambs (n 4) weighing 22 kg were fed ad lib. for 96 d on diets that contained 4 (basal diet), 10, 17 or 27 mg Zn/kg. Sheep in a fifth group were fed on the diet containing 27 mg...

The purpose of this study was to investigate the effect of dietary magnesium (Mg) supplementation on bone loss in rats fed a high phosphorus (P) diet. Weanling Wistar strain rats were randomly divided into four dietary groups of 6 rats each and fed their respective diets; a diet containing 0.3% P and 0.05% Mg (C), a diet containing 1.5% P and 0.05% Mg (HP), a diet containing 0.3% P and 0.15% Mg...

Indirect methods such as masculinizing treatments by synthetic sex steroids has widely been used to produce all-female stocks in salmonids, but they have some disadvantage such as toxicity and high cost. Therefore, the main objective of this research was to develop indirect methods for the production of allfemale populations of Oncorhynchus mykiss through the use of natural steroids.In this stu...

This study was conducted to investigate the effects of dietary inclusion of the encapsulated thyme essential oil (TEO), oregano essential oil (OEO) mixture and probiotic on growth performance, immune response and intestinal morphology of broiler chickens. A total of 490 one-day-old Ross 308 broiler chicks were randomly divided into seven treatments consisting of five replicates (n=14). Birds we...

a 3 × 2 factorial experiment was conducted to investigate the effect of thymol + carvacrol (0, 100 and 200 mg/kg) on ileal microbial population and jejuna and ileal histomorphology of broilers fed carboxy methyl cellulose (cmc: 0 and 2%) containing diet. each of the 6 dietary treatments was replicated 5 times with 12 chicks each from 0 to 42 days of age. there was no interaction effect of cmc a...

Limited data are available regarding the influence of thiamine supplementation on the incidence of polioencephalomalacia (PEM) in lambs fed diets containing increased concentrations of S in the diet (>0.7%). Therefore, our objective was to evaluate the influence of thiamine supplementation on feedlot performance, carcass quality, ruminal hydrogen sulfide gas concentrations, and incidence of PEM...

The study aimed to evaluate the effect of supplementation an additive based on plant and spice extracts in broiler chicken diets productive performance, carcass yield, meat quality. 704 male chicks were distributed a completely randomized experimental design with 4 treatment, replicates 44 chickens each. consisted Diet 1: Control diet; 2: diet + antibiotic growth promoters (AGP); 3: vegetable (...

The influence of a Mg-deficient diet on blood pressure and various hormonal systems was examined in Wistar rats (WR) and spontaneously hypertensive rats (SHR). The WR and SHR were individually divided into 2 groups. The Mg-deficient diet was given to one group, and a Mg-containing diet was given to the other group for 3 weeks. During this experimental period, the body weight, blood pressure, ur...