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Articles by Taghizadeh Akbar
Total Records ( 3 ) for Taghizadeh Akbar
  Paya Hamid , Taghizadeh Akbar , Janmohammadi Hossein and Moghadam Gholam Ali
  Some feedstuffs which used in ruminants diet (corn grain, soybean meal, wheat bran and alfalfa) were analyzed for chemical composition, apparent in vivo nutrient digestibility, in vitro fermentation gas production and metabolizable energy. Chemical composition of test feeds differed in nutrient contents. Initially apparent in vivo digestibility of alfalfa nutrients were obtained then digestibility of nutrients for the other test feeds were determined by difference method, using 16 Ghezel mature rams (mean weight of 43.9±4 kg). In vivo DM, CP, NDF and OM apparent digestibility were different among the test feeds (p<0.05). Regarding to the results, corn grain had a high DM and OM digestibility between test feeds and soybean meal had a high CP and NDF digestibility between test feeds (p<0.05). Cumulative gas production was recorded at 2, 4, 8, 12, 16, 24, 36, 48, 72 and 96 h of incubation and the equation of p = A (1-e-ct) was used to describe the kinetics of gas production. Potential gas production (A) and rates of gas production (c) differed (p<0.01) among feeds. Corn grain showed higher potential gas production (A) (326.5 mL g-1 DM) and wheat bran had higher rate of gas production (c) (0.097 h-1) than the other feeds, inverses alfalfa (257.6 mL g−1 DM) and corn grain (0.048 h-1) had lower potential gas production and rate of gas production than the other test feeds, respectively. The metabolizable energy (MJ kg-1 DM) content of feeds was calculated using in vivo organic matter digestibility and gas production data. According to in vivo organic matter digestibility data, the ME values ranged from 9.2 in alfalfa to 13.3 MJ kg−1 DM in corn grain. It was concluded that regarding to different chemical composition of test feeds, the in vivo digestibility, in vitro gas production and ME of feeds showed different values.
  Besharati Maghsoud , Taghizadeh Akbar , Janmohammadi Hossein and Moghadam Gholam Ali
  Food by-products in Iran are produced in high levels. In this study, in situ and in vitro gas production techniques were used to describe nutritive value of apple pomace, tomato pomace and noodle waste. For this purpose two ruminal fistulated sheep were used. Nylon bags which were approximately (6x12 cm) containing 5 g samples (2 mm screen) were incubated in duplicate in the rumen of fistulated sheep for 0,2,4,6,8,12,16,24,36 and 48 h. The gas production was recorded after 2, 4, 6, 8, 12, 16, 24, 36 and 48 h of incubation and the equation of P = A (1-e-ct) was used to describe the kinetics of gas production. The data was analyzed using completely randomized design. DM and CP disappearance were significantly different among feedstuffs (p<0.05). After 48 h of incubation DM disappearance in noodle waste was highest and in tomato pomace was lowest. Regarding to the results, at the most incubation times tomato pomace had lower CP disappearance among feedstuffs (p<0.05). Potential gas production (A) and rates of gas production (c) differed among feedstuffs. Apple pomace showed higher potential gas production (A) (305.1 mL g-1 DM) and tomato pomace had higher rate of gas production (c) (0.09 h-1) than the other feedstuffs. According to gas production volume, the value for the ME, OMD and SCFA ranged from in 8.87 noodle waste to 9.76 in apple pomace, 56.1 in tomato pomace to 64.3 in apple pomace and 0.919 in noodle waste to 1.168 in apple pomace, respectively. Partitioning factor in noodle waste was highest and in tomato pomace was lowest. In the present study, feeds composition significantly affected the degradation parameters.
  Taghizadeh Akbar , Mahbob Soltan Ali , Zarrini Golamreza , Besharati Maghsoud and Ansari Adel
  Problem statement: Ciliate protozoa are one of the normal microorganisms that found in rumen of both domestic and wild ruminants. Several factors seem to influence the concentration and composition of the protozoal fauna in the rumen. The aim of the present study was to determine the rumen ciliates protozoa diversity in Ghizel sheep of East Azerbaijan province and evaluate effects of alfalfa replacement by multiple level of dried grape by-product (0, 15, 30 and 45% of diet) on ciliate protozoa population. Approach: In the first experiment, samples of rumen fluids were collected from 16 mature sheep. Selected sheep were belonged to 4 pure herds of Ghizel sheep in east Azerbaijan province. In the second experiment, sixteen mature Ghizel wether sheep of live weight 34 kg (±1.5) were used. Data obtained from study was subjected to ANOVA as a completely randomized design with 4 replicates by the GLM procedure and treatment means were compared by the Duncan test. Results: In experiment 1, different geographical locations affect total number of rumen ciliated protozoa (p<0.05), Entodinium spp. and Dasytricha spp. In experiment 2, the concentrations of Entodinium spp., Diplodinium spp., Holotricha spp. and Opharyoscolex species were higher when 15% dried grape by-product (DGB) was included in the diet. With increasing DGB in diets the number of Epidinium spp. and Euodiplodinium spp. reduced in treatments 2 (15% of diet replaced by DGB) and 3 (30% of diet replaced by DGB) (p<0.05). Conclusion: The different geographical locations affected total number of rumen ciliated protozoa, Entodinium spp. and Dasytrisha spp. The concentration of Diplodinium was observed to increase when sheep were fed with dried grape by-product.
 
 
 
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