Hamidreza Moslehi; Bahman navidshad; seyed davood sharifi; Farzad Mirzaei Aghjeh-Gheshlagh
Volume 20, Issue 1 , May 2018, , Pages 159-175
Abstract
The effect of different sources of Se, together with flaxseed on performance, egg physical qualities and some serum biochemical parameters in laying hens was investigated. In a completely randomized design, 384 "Hy-Line W36" hens (50 wks of age) were assigned to a 3×4 factorial arrangement comprising ...
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The effect of different sources of Se, together with flaxseed on performance, egg physical qualities and some serum biochemical parameters in laying hens was investigated. In a completely randomized design, 384 "Hy-Line W36" hens (50 wks of age) were assigned to a 3×4 factorial arrangement comprising four replicates of eight for ten weeks. Birds received three basal diets containing 0, 5% and 10% of flaxseed, supplemented with no Se and one mg/kg of Se from sodium selenite, Se-enriched yeast and seleno-hydroxy-methionine(Selisseo). Inclusion of flaxseed decreased egg weight and egg mass(P
Elham Sarbaz; Bahman navidshad; Farzad Mirzaei Aghjegheshlagh
Volume 18, Issue 4 , December 2016, , Pages 811-820
Abstract
The effect of peanut pod as insoluble fiber source in diets on growth performance, small intestine morphology and nutrient digestibility of broilers was evaluated. This study was conducted using 320 Ross-308 broiler chickens in a completely randomized design with four treatments diets (containing 0 (control), ...
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The effect of peanut pod as insoluble fiber source in diets on growth performance, small intestine morphology and nutrient digestibility of broilers was evaluated. This study was conducted using 320 Ross-308 broiler chickens in a completely randomized design with four treatments diets (containing 0 (control), 2.5, five or 7.5 percent peanut pod), with five replicates and 16 birds in each from 11 to 42 days of age. At the growth phase (11 to 24 d) dietary peanut pod decreased feed intake and feed conversion ratio, however, the birds that fed the diet containing 7.5 percent had higher daily weight gain (P<0.05). Peanut pod improved the digestibility coefficients of dry matter and ether extract and the diets containing 2.5 or 5.0 percent peanut pod had more organic matter digestibility than the control diet (P<0.05) Chicks that fed the diets containing 5.0 or 7.5 percent peanut pod, the villous was (P<0.05) longer than control birds. The results of present study suggest that using peanut pod up to 7.5 percent of diet did not adversely affect chickens growth performance and can improve feed conversion ratio at the grower phase.
Mahdi Afra; Bahman Navidshad; Farzad Mirzaei Aghjeh Gheshlagh; Nemat Hedayat Ivarigh
Volume 18, Issue 3 , October 2016, , Pages 563-573
Abstract
This experiment was carried out using 200 Ross 308 broiler chickens in a completely randomized design with 5 treatments and 4 replicates. The true metabolisable energy of the barley hulls were determined using cecectomized roosters.The dry matter, true metabolisable energy, ash, ether extracts, crude ...
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This experiment was carried out using 200 Ross 308 broiler chickens in a completely randomized design with 5 treatments and 4 replicates. The true metabolisable energy of the barley hulls were determined using cecectomized roosters.The dry matter, true metabolisable energy, ash, ether extracts, crude protein, crude fiber, NDF, ADF, Ca and total P content of barely hulls were: 92%, 978 kcal/kg, 3.53%, 4.26%, 12.26%, 12.6%, 52.1%, 23.5%, 0.9% and 0.6%, respectively. The experimental diets were consisted of a control hulls free diet and four diets containing 0.75 or 1.5 percent barley hulls with particle sizes of less than 1 mm or between 1-2 mm. The barley hulls improved weight gain and feed conversion ratio and particularly the diet contained 1.5 percent barley hulls with particle size of 1-2 mm was more effective in this respect (P < 0.05). The same trend was observed in gizzard weight (P < 0.05). Dietary barley hulls improved dry matter, crude protein and ash digestibility (P < 0.05). All the barley hulls contained diets reduced feed cost per kg weight gain of broiler chickens, which could be a surprising finding. The results of the present study suggest that including barley hulls with 1-2 mm particle size at 1.5 percent of the diet could positively affect performance traits and feed cost of broiler chickens.