Introduction: In most dairy farms, calves are housed individually during the milk-feeding period and will only introduce to social groups after weaning. Individual housing can help keep calves healthy by reducing disease transmission and incidence behavioral problems such as cross-sucking as well...

Introduction: Zinc (Zn) is required for many enzymatic and metabolic functions in the animal's body (Prasad and Kucuk 2002). Also, it affects the antioxidant defence system, where deficiency of Zn increases oxidative damage to cell membranes (Prasad and Kucuk 2002). Zn was assumed to improve the...

The aim of this study was to investigate the effects of dietary threonine levels on the performance and meat quality of broilers chickens under different stocking densities. 495 male Ross-308 broiler chickens from 1 to 42 days of age were divided in a completely randomized design with 4 treatments...

BACKGROUND: Stocking density is one of the most important problems in the poultry industry, which impair their production and welfare. OBJECTIVES: This experiment was done to evaluate the effect of organic selenium supplementation on the growth performance, blood metabolites, and the meat quality...

The present study investigated the impact of stocking density and dietary protein level on the growth, hematology, immunity and resistance against Aeromonas hydrophila in common carp reared under biofloc conditions for 60 days. Fish (12.09±0.99g) were stocked into 15 tanks in a 2×2 factorial design ...

Introduction: Heat stress can compromise sheep's productive performance and growing lambs are considered to be one of the most susceptible groups to heat stress. Exposure to heat stress increases inflammatory cytokines secretion and impairs insulin signaling in muscle which may underlie poor growth ...

This experiment was conducted to evaluate effect of feed form and stocking density on performance and some behavioral parameters of 208 one-day-old broiler chickens (Ross 308), for 42 days. Treatments were 2 feed forms (pellet versus mash) and 2 levels of density (10 and 16 birds/m²) that was...

Introduction: Stresses such as climatic, environmental, nutritional, social and psychological stresses have negative effect on animal welfare, performance and immunological parameters. Following the increase in consumption of poultry products and the widespread production of these products,...

In order to study the effects of various levels of organic chromium on performance and egg quality characteristics of laying hens reared at high stock density, an experiment was done using two levels of density (three and five birds per cage) and four levels of organic chromium (0, 300, 600 and 900 ...

Introduction: There is an increasing interest in the use of spineless cactus (Opuntia fícus-indica) as fodder for cows, goats, and sheep around the world especially in the arid and semi-arid regions. Cactus withstands water shortage, high temperature, and poor soil fertility, and thus adapted to...