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Articles by Ahmad Asghari
Total Records ( 3 ) for Ahmad Asghari
  Saeed Ozmaie and Ahmad Asghari
  Congenital anomalies are abnormalities of structure or function present at birth and account for a high percentage of calf mortality from just before to just after calving. The etiology of these defects was either genetic (recessive gene) or environmental which included nutritional deficiencies, endocrine disturbances, extremes of temperature during pregnancy, radiation, drugs, chemicals, toxic plants and infectious diseases. This report describes a case of patent ductus arteriosus and arthrogryposis in a 7 days old female buffalo calf. The main clinical signs consisted of exercise intolerance, dyspnea and tachycardia. The calf survived only for 48 h. Necropsy revealed a patent ductus arteriosus, measuring 1.3 cm in length and 0.6 cm in caliber was patent and the heart was enlarged and had a globous shape. In this case, a cause of death could not be determined. Any animal with a patent ductus arteriosus has the potential to develop heart failure but it may take months or years to become clinically significant. Without histological findings, a diagnosis of heart failure can not be made with certainty. Since the above conditions were inherited, the best control is by genetic planning, i.e., to avoid animals that carry these genes from breeding programs and by purchasing bulls/semen from reputable breeders produced by parents who did not carry undesirable genes.
  Jamshid Ghiasi Ghalehkandi , Ahmad Asghari , Rahim Beheshti , Mohammadreza Valilu and Abdolreaz Yeghaneh
  The onion (Allium cepa) has long been used in traditional medicine is one of the important Allium species commonly used in the daily diet and has recently been the source of much interest because of its antithrombotic, hypolipidaemic, hypotensive, diaphoretic, antibiotic, antidiabetic, antiatherogenic and anticancer medicinal properties. Zinc deficiency causes primary testicular failure and altered testicular steroidogenesis. The aim of present study was to evaluation of onion (Allium cepa. Linn) aqueous extract on serum concentration of LH, FSH and testosterone compared with Zn sulfate supplementation in the rats. In this experiment, 162 mature male rats (250 g on the average) were acquired from Razi Serum-Producing Institute of Karaj and transferred to keeping place. This design is performed as a factorial experiment 3x3 (3 level of onion extract and 3 level of zinc sulfate complement) in the form of totally random design with 9 groups per 3 replications each containing 6 rats. All of keeping cages were disinfected before performing the experiment. Data showed that the effect of different levels of zinc supplementation and onion extract was significant on the concentrations of these hormones, p<0.05. The combined use of onion and Zn was more significant on LH and FSH and no significant on testosterone, p<0.01. Treatment group 9 has highest increase in the amount of LH and FSH. The reason of this fact that contrary, the concentration of testosterone showed no increase in the experimental groups treated with onion and Zn supplementation probably can be attribute to the negative feedback effect of this hormone versus LH and FSH.
  Jamshid Ghiasi Ghalehkandi , Ahmad Asghari , Yahya Ebrahimnazhad , Saeed Ghaemmaghami and Mohammad Reza Valilu
  An experiment was conducted to study the effects of different levels of perlite on serum calcium, phosphor and chloride in broiler chicks. The experimental design was arranged as randomized complete blocks in 4x2 factorial arrangement of treatment. About 180 male broilers of Ross 308 commercial hybrid was designated into 3 groups (0, 2 and 4%). About 3 replicates of 20 birds were assigned to each treatment. Control treatments were fed base diet and treatments with the same base diet plus 2 and 4% perlite. The feeding continued up to the age of 42 days. At the 21 and 42 days, 6 birds from each treatment were selected for serum calcium, phosphor and chloride in broiler chicks. Blood samples were collected from the vena axillaries). As intake of perlite, significantly increased serum calcium, phosphor and chloride at weeks on broiler chicks (p<0.05) these data suggested that perlite administration did not have significant effect on control treatment comparing to treatment.
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