mohammad Bojarpour; Akbar Yaghoobfar; somayeh salari
Volume 19, Issue 1 , May 2017, , Pages 159-174
Abstract
This experiment was conducted to evaluate the effects of physical form, barley variety and enzyme addition on Ileal digestibility, apparent metabolizable energy (AME) and energy efficiency of broiler chickens.The experiment was carried using a factorial experiment with a completely randomized desiegn. ...
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This experiment was conducted to evaluate the effects of physical form, barley variety and enzyme addition on Ileal digestibility, apparent metabolizable energy (AME) and energy efficiency of broiler chickens.The experiment was carried using a factorial experiment with a completely randomized desiegn. Factors were barley varity (Fajr, Reyhaneh, and Yosef), diet form (mash or pellet) and enzyme level (0 and 0/05 g/kg dry matter). Here 927 one day-old Ross 308 broiler chickens were assigned to 12 treatments, 3 replicates and 27 chickens in each replicate. The results of experiment indicated that the digestibility of nutrients, AME, apparent metabolizable energy corrected to zero nitrogen retention (AMEn) and energy efficiencies (NE/AMEn) affected by barley variety (p <0/05). Net Energy (NE) affected by main and interaction effects (P < 005). Diets containing Ryhaneh barley variety in comparison with other varietys, increased Ileal Digestibel Protein (IDP), Ileal Digestibel fat (IDF), NE, AME and AMEn (P <0/05). Although pelleting decreased Ileal Digestibility of nutrients (p>005), NE, AME and AMEn (p <0/05), addition of enzyme to diet increased this indicators (P <0/050). According to these results, the use of pellet diet containing Ryhaneh variety with enzyme improved digestibility and energy efficiency and thus it's recommended to be used in poultry nutrition.
Behrouz Yarahmadi; Morteza Chaji; Mohammad Boujarpour; Khalil Mirzadeh; Morteza Rezaei
Volume 18, Issue 3 , October 2016, , Pages 447-459
Abstract
This experiment was carried out the aim of the effect of sainfoin forage and forage:concentrate ratios on feed intake, nitrogen balance,ruminal biohydrogenation and milk fatty acid profile in dairy ewes using of eight Lori breed ewes according to a replicated 4 × 4 Latin square design. Treatments ...
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This experiment was carried out the aim of the effect of sainfoin forage and forage:concentrate ratios on feed intake, nitrogen balance,ruminal biohydrogenation and milk fatty acid profile in dairy ewes using of eight Lori breed ewes according to a replicated 4 × 4 Latin square design. Treatments were adjusted from one to four according to forage:concentrate ratios of 35:65 with and without sainfoin and 65:35 with and without sainfoin. Dry matter intake was not significant among experimental diets. Retention of N was higher in ewes that receiveddiets consist of forage:concentrate ratios of 35:65 with sainfoin and 65:35 with and without sainfoin (P<0.05). The high concentrate diet with sainfoinwas the most vaccenic acid concentration accompanied by the less concentrations of stearic acid in ruminal liquor (P<0.05). Apparently biohydrogenation ofhigh concentrate diet with sainfoin (treatment one) decreased for oleic, linoleic and linolenic acid with 10.2, 12.3and 7.1%, respectively (P<0.05). Experimental diets effect were significant on vaccenic acid, conjugated linoleic acid, linoleic acid and linolenic acidconcentrationsin milk fat (P<0.05).In base onobtained the results,feeding of dairy ewes with high concentrate diets consist of sainfoin forage were an important due to increased conjugated linoleic acid and vaccenic acid concentration in milk fat.
Shahin Nasimi Esfahani; Morteza Chaji; Tahereh Mohammadabadi; Mohammad Bojarpour
Volume 18, Issue 1 , April 2016, , Pages 39-49
Abstract
The digestibility and fermentation parameters of the diets containing leaf, pod and seed of the Subabul tree in sheep was determined by using two steps digestion and gas production (GP) methods. The experimental diets consisted of 0.0 (control), 25, 50, 75 and 100 percent of the leaf, pod and seed of ...
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The digestibility and fermentation parameters of the diets containing leaf, pod and seed of the Subabul tree in sheep was determined by using two steps digestion and gas production (GP) methods. The experimental diets consisted of 0.0 (control), 25, 50, 75 and 100 percent of the leaf, pod and seed of the Subabul tree that were replaced with alfalfa in diets of sheep. Diets containing 50 percent seed of the Subabul had higher GP compared to the control diet (P<0.05). The highest true digestibility of organic matter in Subabul leaf was belonged to diet contains 100 percent leaf. The diet contain 100 percent had the highest partitioning factor (PF) and microbial biomass efficiency (P<0.05) compared to other levels of the Subabul pod. The digestibility of DM, NDF and ADF of diets contain the pod of the Subabul tree for all levels were less than control (P<0.05). There are no significant differences between digestibilities of NDF and ADF of diets contain up to 75 percent the leaf of the Subabul tree and others diets. Digestibility of DM, NDF and ADF was more than control diet (P<0.05) by increasing the amount of the seed of the Subabul tree in the diets (75 and 100 percent of the seed of the Subabul). According to the results, the leaf and seed of the Subabul can be replaced up to 100 percent with alfalfa in the diets of sheep without any negative effect on fermentation and digestion. The nutritional value of sheep diets can be improved by replacing the alfallfa with Subabul tree seeds.
Morteza Nadali; Somayyeh Salari; Mohammad Boujarpour; Saleh Tabatabaei Vakili; Mohsen Sari
Volume 17, Issue 1 , April 2015, , Pages 141-149
Abstract
Effect of levels of zinc supplementation on footpad lesions, reproductive and blood parameters of broiler breeders with 300 hens and 40 roosters of Ross 308 strain with four treatments, five replicates and 15 hens and two roosters in each for 12 weeks was evaluated in a completely randomized design. ...
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Effect of levels of zinc supplementation on footpad lesions, reproductive and blood parameters of broiler breeders with 300 hens and 40 roosters of Ross 308 strain with four treatments, five replicates and 15 hens and two roosters in each for 12 weeks was evaluated in a completely randomized design. Dietary treatments were 80, 110, 140 and 170 mg zinc/kg diet. Increasing supplemental zinc level especial 170 mg/kg diet increased hatchability (P<0.05). Levels of 140 and 170 mg zinc/kg diet significantly improved footpad lesions (P<0.05). In the first phase of incubation, the lowest rate of mortality observed in 140mg zinc/kg diet (P<0.05). Also, number of large and small size follicles of broiler breeders increased at 170 mg zinc/kg diet (P<0.05). Blood parameters did not affect significantly. The results of this experiment showed that supplementation of broiler breeders diet with zinc at 140 and 170 mg/kg diet could improve hatchability and had desirable effect on footpad health.