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Articles by H. Lotfollahian
Total Records ( 3 ) for H. Lotfollahian
  Sh. Golzar Adabi , A. Haji Babaei , H. Lotfollahian , T. Farahvash and F. Moslemi Pour
  To investigate the effect of dietary L-carnitine on ostrich sperm quantity and quality, a study was conducted in a completely randomized design consisting of three treatments and four replicates (total 12 male ostriches). The experimental rations were prepared using different levels of carnitine (L1 = 0, L2 = 250 and L3 = 500 mg kg-1). Ejaculates were collected by massage method once a month for three months. The ejaculate volume, total sperm numbers per ejaculate, concentration of spermatozoa, sperm motility, live sperm percentage and abnormal sperm percentage were measured. Semen volume in both groups (250 and 500 mg kg-1) was higher than control group, (p < 0.01), L-carnitine treated ostriches (250 and 500 mg kg-1) have increased sperm count, sperm motility, live sperm (p < 0.05) but L-carnitine had no significant effect on abnormal sperm. According to this study it is recommended to use 250 mg kg-1 L-carnitine in order to increase the ejaculate quality in ostriches.
  H. Lotfollahian and S.A. Hosseini
  In a trail the Apparent Metabolizable Energy (AME), Apparent Metabolizable Energy corrected to Nitrogen retention (AMEn), True Metabolizable Energy (TME) and True Metabolizable Energy corrected to Nitrogen retention (TMEn) content of some feeding stuffs for poultry were determined with cockerels. The test materials consisted of feed grade Oak (Quercus faginea), Fig (Ficus carica), Olive (Olea europea) pulp with nucleolus and without nucleolus. The result showed that Oak, Fig, Olive pulp with nucleolus and without nucleolus according to their component can be noticed as an energy sources. Their crude protein was low. The nitrogen- corrected Apparent Metabolizable Energy (AMEn) values for Oak, Fig and Olive pulp with nucleolus and without nucleolus were 2775.04±29, 2558.7±35, 1347.05±64 and 3052.33±122 Kcal kg-1 dry matter, respectively. The nitrogen-corrected True Metabolizable Energy (TMEn) value for the respective feeding stuffs were 3177.99±30, 2999.06±33, 1537.02±59 and 3243.34±126 Kcal kg-1 dry matter.
  M.J. Agah , H. Nassiri-Moghaddam , A.M. Tahmasbi and H. Lotfollahian
  An experiment was carried out to determine the influence of feeding different levels of Locally Produced Canola Seed (LPCS) on performance and fatty acid compositions of egg yolk lipid. In a completely randomized design, four treatments including control and three levels of whole canola seed (5, 10 and 15%) were fed to 108 laying hens (Hy-line w-36 at the age of 30 weeks) in four groups with three replications for 12 weeks. Fatty acid compositions of egg yolk were measured at the end of 41 weeks. Usage of LPCS in all levels decreased total amount of saturated fatty acid and the ratio of n-6 to n-3 of the yolk in comparison with control diet. The diets had significant effects on egg shell weight, haugh unit and yolk color index. With 15% LPCS in diet, significantly decreased daily haugh unit in comparison with control diet. Supplementation of LPCS >10% in diet resulted to decreased egg shell weight and yolk color comparing to control diet. There were significant differences in daily feed intake, egg production and egg mass. There was no difference in daily produced egg mass between levels of 5 and 10% LPCS in comparison with control diet (51.94 and 50.57 vs. 51.67). The using of 10% LPCS in diet had the best result between treatments due to better performance and ratio of n-6 to n-3 polyunsaturated fatty acid in egg yolk in comparison with control diet (8.28 vs. 16.94).
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