In order to investigate the relationship between insulin to glucagon ratio and metabolic factors in transitional period of dairy cows, 28 cows heifers with body condition score of 3.25- 3.75 were selected. Dairy cows received close up diet, from 21 days prepartum until parturition and lactation diet according to nutritional requirements after parturition. Blood was sampled at 10 days before and...

Background: The Lori-Bakhtiari sheep breed is one of the most common native breed in the south-western parts of Iran. The peri-parturition period (2 weeks before to, 2 weeks after parturition), is generally of critical importance regarding the health, production and profitability of the ewes. OBJECTIVES: This study was carried out to compare the serum concentrations of glucose, non-esterified f...

the purpose of present study is testing influence of injection oxytocin immediately after parturition and injection prostaglandin f2α, 20 to 25 days after parturition in dairy cows upon process of uterus contraction distance between delivery till first estrus distance between parturition till first and second semenation, amount of pregnancy at first semenation and number of semenation for every...

The effectiveness of dexamethasone and prostaglandin in combination for induction and synchronization of parturition in cattle was evaluated in 100 pregnant Angus, Hereford, Charolais and Simmental cows. Cows were distributed equally by breed, day of gestation and cow age to one of three treatments: 1) Control, 2) Dexamethasone (25 mg) plus prostaglandin F(2alpha) (25 mg) or 3) Dexamethasone (2...

the aim of the present study was to determine the effect of dietary supplementation of pioglitazone (pgt) during transition period on the ovarian function and the incidence of several diseases after parturition. eighty holstein cows were randomly allocatted to four treatment groups (n=20) using a 2×2 factorial design.  pioglitazone was fed for 14 day before the expected parturition time, or for...

background: misoprostol, a prostaglandin e1 analogue compared to prostaglandin e2, has the advantage of being inexpensive and stable at room temperature, with its proven efficacy and safety. however studies on the effect of ph on the efficacy of misoprostol have yielded conflicting results. thus its use in the induction of labour in patients with premature rupture of membrane requires further i...