an experiment was conducted to evaluate the effects of microbial phytase on apparent digestibility of crude protein (cp), amino acids (aa), and apparent retention of calcium (ca), total phosphorus (tp), iron (fe) and zinc (zn) in female broiler chickens diet. the experiment was designed as a completely randomized design. each treatment consisted of 4 replicates of 10 broilers in battery cages, ...

A dose-response experiment with five lysine levels (0.65, 0.80, 0.95, 1.10, and 1.25%) was conducted to evaluate the lysine requirement of male White Pekin ducklings from 7 to 21 days of age. Two hundred and eighty, 7-day-old, male White Pekin ducklings were allocated to 5 experimental treatments, each containing 8 replicate pens with 7 birds per pen. Feed and water were provided ad libitum fro...

background & aim: medicinal plants is very potential to be used as a supplementary feed as well as feed additive in broilers.this experiment was conducted to investigate the effects of milk thistle (mt) and thyme seeds (ts) on the performance in broilers. experimental: in this study, 160 one-day-old (ross 308) male broiler chicks were divided randomly into four major groups with 4 replicate...

In this study, nine male Dallagh sheep (initial weight 35±2 kg) were used in a replicated 3 × 3 latin square design experiment with three treatments and three 21-day periods (14 d adaptation, 7 d collection). Treatments were control (without addition) and two treatment diets containing 10% dry matter Glycyrrhiza glabra (licorice) and Urtica dioica (nettle) powder. The dry matt...

this experiment was conducted in order to evaluate the effect of different levels of malva sylvestris extract on performance, carcass characteristics and some immune and blood parameters of broiler chickens with 16 experimental units with 4 treatment, 4 replicate and 11 broilers in each replicate  in completely randomized design for 42 days. the dietary treatments consisted of basal diet (contr...

in order to investigate the effect of partial replacement of barley starch with beet pulp soluble fiber with or without roasted canola seed on apparent nutrient digestibility, dry matter intake, daily weight gain, feed conversion ratio and rumenal ph 24 arabian male lambs were used for 84 days in a completely randomized design with a 2×2 factorial arrangement. treatments had no significant effe...

this experiment was carried out to evaluate the effect of probiotic supplementation and feed restriction on growth response in broiler chickens. for this purpose, 336 male broiler chickens of ross 308 were used. after housing, broilers allocated to experimental pens in a completely randomized design with factorial 2×3 arrangement. first and second groups considered as positive control group wit...