Ziaei N.,University of Jiroft
Journal of Applied Animal Research | Year: 2015
The aim of this study was to investigate the effect of selenium (Se) and vitamin (vit) E supplementation on reproductive indices and biochemical metabolites in Raieni goats. Ninety adult Raieni goats, weighing 43 ± 2.5 kg and with a body condition score of 3.5 ± 0.1, were randomly allocated into nine groups which entered into an experiment with 3 x 3 factorial design. The experimental diets consist of three levels of se (0.0, 0.3 and 0.5 mg/kg of feed) and three levels of vit E (0.0, 20 and 50 mg/kg of feed). At the end of the experiment, blood samples were collected from the jugular vein of all goats into 10-ml vacuum tubes (venoject). Serum was recovered by centrifugation (10 m at 3000 rpm) and stored at -20°C until assayed for the concentration of biochemical metabolites (glucose, cholesterol, triglycerides, low-density lipoprotein (LDL), high-density lipoprotein (HDL), total proteins, albumin and T3 and T4). The results of this experiment revealed that supplementation of diets with Se or vit E had no significant effect on biochemical metabolites or reproductive traits. However, the interactive effect of Se and vit E on reproductive indices was significant (P < 0.05), with goats fed diets containing 0.5 mg/kg Se and 20 mg/kg vit E, giving birth to heavier kids compared to those which received the other dietary treatments. © 2014 Taylor & Francis.
Endocrine changes, timing of ovulation, ovarian follicular growth and efficacy of a novel protocol (Estradoublesynch) for synchronization of ovulation and timed artificial insemination in Murrah buffaloes (Bubalus bubalis)
Mirmahmoudi R.,University of Jiroft |
Souri M.,Razi University |
Prakash B.S.,National Dairy Research Institute
Theriogenology | Year: 2014
Experiments were conducted to investigate (1) ovarian follicular growth, timing of ovulation and associated endocrine changes (progesterone, estrogen, and LH) in cycling, and (2) efficacy in terms of pregnancy rate in cycling and anestrus Murrah buffaloes subjected to the Estradoublesynch protocol (prostaglandin F2α [PGF2α] 0, GnRH 2, PGF2α 9, estradiol benzoate, EB 10). Twelve cycling buffaloes were subjected to the Estradoublesynch protocol and observed for ovulation, follicle size, and endocrine changes after EB treatment. Ovulation occurred in 12 of 12 buffaloes (100%) at 48.5 ± 1.6 hours (range, 38.0-56.0) after EB treatment. Plasma LH, total estrogen, and progesterone concentrations were determined in intensive blood samples collected after EB treatment. Peak LH concentration of 34.2 ± 7.7 ng/mL (range, 17.8-178.5) occurred at 18.3 ± 0.8 hours (range, 14.0-22.0) after EB treatment. Peak total estrogen of 50.8 ± 6.9 pg/mL (range, 32.3-82.7) occurred 5.7 ± 1.0 hours (range, 2.0-14.0) after EB treatment. Follicle size was gradually increased from second PGF2α injection (9.7 ± 0.3 mm; range, 8.0-12.0) until ovulation was detected (12.9 ± 0.4 mm; range, 11.0-15.0). Fourteen cycling and 11 anestrus buffaloes were subjected to the Estradoublesynch protocol, with timed artificial insemination (TAI) 48 and 60 hours after EB treatment, and 58 cycling buffaloes were inseminated after spontaneous estrus (control group). Pregnancy rates were 62% for TAI of cycling buffaloes, 64% for anestrus buffaloes, and 34.5% for control group. Our observations demonstrated that the Estradoublesynch protocol followed by TAI satisfactory enhanced pregnancy rates in both cycling and anestrus buffaloes. © 2014 Elsevier Inc.
Kor N.M.,Islamic Azad University at Baft |
Ziaei N.,University of Jiroft
Asian Journal of Animal and Veterinary Advances | Year: 2012
Reproductive management has an important role in animal production; therefore, the objective of this study was to determine the effect of different dosages of equine chronic gonadotropin (eCG) on reproductive performance of mature Raini goats during the breeding season. One hundred Raieni goats (42±2.5 kg) were randomly allocated to five groups to receive different dosages of eCG; (0 IU as control group; and other treated groups received 350, 450, 550 and 650 IU of eCG respectively). The interval to onset of estrus was detected by using five aproned bucks. Oestrus was induced by prostaglandin and occurred 24 to 48 h after the second injection. The results showed the estrus incidence rates were not significantly different between groups (p>0.05). The pregnancy rates were 90, 90, 95, 100 and 85% in treatments and control group, respectively, with the pregnancy rate in 550 and 650 IU groups being significantly higher than the other groups (p<0.05). Twinning rates were higher in treated goats (55, 58 and 65%) than in controls (36%, p<0.05). The results of the present study show that eCG treatments increase the twinning rate in Iranian Raieni goats. © 2012 Academic Journals Inc.
Seyedi N.,University of Jiroft
Transition Metal Chemistry | Year: 2013
In this investigation, glycerol and [Fe(III)(salen)]Cl as a green catalyst system were used in multicomponent reactions for the synthesis of bis(indolyl)methanes, 3,4-dihydropyrimidinones, and 1,4-dihydropyridines, respectively. Excellent product yields and short reaction times were achieved. © 2012 Springer Science+Business Media Dordrecht.
Beitollahi H.,Research Institute of Environmental science |
Khabazzadeh H.,Shahid Bahonar University of Kerman |
Karimi-Maleh H.,Islamic Azad University |
Akbari A.,University of Jiroft
Chinese Chemical Letters | Year: 2012
A new electrochemical sensor for determination of isoproterenol (IP) is described. The sensor is based on carbon paste electrode (CPE) modified with 5-amino-2′,4′-dimethoxybiphenyl-2-ol (5ADMB) and takes the advantages of carbon nanotubes (CNTs). Under the optimum pH of 7.0, the oxidation of IP occurs at a potential about 210 mV less positive than that of the unmodified CPE. The oxidation currents increased linearly with two concentration intervals of IP, one is 0.09 to 20.0 μmol/L and, the other is 20.0 to 400.0 μmol/L. The detection limit (3σ) obtained by square wave voltammetry (SWV) was 39.0 nmol/L. The practical application of the modified electrode was demonstrated by determining IP in IP ampoule, urine and human blood serum samples. © 2012 Hadi Beitollahi.