This study was conducted to investigate the effects of different levels of zinc sulfate and chromium picolinate on performance, body temperature, carcass characteristics, tibia ash and serum biochemical parameters 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 factor...

this experiment was conducted to study the effects of two kinds of sodium and calcium bentonite (nab and cab) on performance, blood biochemical parameters, carcass characteristics and tibia ash of broiler chickens. two hundred and sixty day old broilers of male ross 308 strain were allocated to 5 treatments with four replicatates and 13 broilers in each. the experiment was carried out in a comp...

BACKGROUND: Exogenous phytase enhances the utilization of plant phytate phosphorus in poultry. OBJECTIVES: In the present study the effects of exogenous phytase was investigated on tibia bone characteristics of white quail. METHODS: In a 2x2 factorial arrangement, eighty, 11-day old unsexed chicks were randomly divided into 4 treatments of 20 replicates. All birds received one of four experimen...

We report the genetic relationship between growth and bone quality traits in a random mating broiler control population. Traits studied were growth rates from week 0 to 4 [body weight gain (BWG) 0 to 4], from week 0 to 6 (BWG 0 to 6), and residual feed intake (RFI) from week 5 to 6 (RFI 5 to 6). Bone quality traits were obtained at 6 weeks of age. These traits were shank weight (SW), shank leng...

background: exogenous phytase enhances the utilization of plant phytate phosphorus in poultry. objectives: in the present study the effects of exogenous phytase was investigated on tibia bone characteristics of white quail. methods: in a 2x2 factorial arrangement, eighty, 11-day old unsexed chicks were randomly divided into 4 treatments of 20 replicates. all birds received one of four experimen...

The purpose of this study was to investigate the effects of varying ratios of n-6 to n-3 fatty acids in the diets of White Leghorn chickens on tibia bone characteristics [bone mineral density, bone mineral content (BMC), ash bone mineral content, bone morphology, and cortical thickness] and tibia bone strength parameters (ultimate force, bending stress, maximum strain, Young's modulus of elasti...

The effbets of galaetooligosaccharides (GOS), a mixture of galactosyl oligosaccharides formed from lactose by the transgalactosyl reaction of fi-D-galactosidase deriyed from Bacitlas circulans, on calcium absorption and preyention of bone loss were examined in oyariectomized (OYX) Wistar rats. Rats fbd on a diet containing GOS abserbed calcium more eMciently than those on the control diet after...

s of papers 11 42 Phosphorus efficacy of an E. coli phytase in young chicks. N.R. Augspurger*1, D.M. Webel2, X.G. Lei3, and D.H. Baker1, 1University of Illinois at Urbana-Champaign, 2United Feeds, Inc., Sheridan, IN, 3Cornell University, Ithaca, NY. Three assays were done to investigate the phosphorus (Pi)-releasing efficacy of an E. coli phytase (ECP, produced by Phytex LLC), relative to Natup...

There is considerable data on the effect of reducing inorganic Ca and P in broiler finisher diets on carcass quality. However, there is limited information on the effect of reducing dietary Ca and P during the different phases of growout. Two experiments were conducted from 0 to 35 d in floor pens. In both experiments, at least 4 replicates per treatment (50 chicks per replicate) were used. Cor...

Sixty White Leghorn hens were assigned to 1 of 6 treatments: pretrial control (PC), full fed (FF), 9-d feed withdrawal (FW), 90% alfalfa-10% layer ration (A90), 80% alfalfa-20% layer ration (A80), and 70% alfalfa/30% layer ration (A70). For the PC, hens were killed and bones collected immediately before light restriction. The FF hens were also subjected to light restriction. After hens were fas...