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A trial was conducted to evaluate the effects of FGA (Fluorogestone acetate) and CIDR (Controlled internal drug release) on the induction of estrus and pregnancy and fecundity rates of the Sanjabi and Lori sheep. A total of 360 Sanjabi and Lori sheep were randomly grouped into two treatments with intravaginal devices inserted for 13 days: Group FGA (40 mg(More)
Evidence is presented for the existence of a soluble heterotetramer containing the low and middle molecular weight neurofilament (NF) proteins, NF-L and NF-M, and one containing the low and high molecular weight proteins, NF-L and NF-H, and for their role in filament assembly. When a mixture of either pair of proteins was renatured in 2 M urea, 20 mM Tris,(More)
Neurofilament proteins purified from bovine spinal cord were characterized by sedimentation studies in aqueous buffers. In 10 mM Tris, pH 8, the middle molecular weight neurofilament protein (NF-M) has a sedimentation coefficient, S20,w, of 2.6 S. Sedimentation equilibrium data shows considerable nonideality; extrapolation to infinite dilution and(More)
The cumulus oocyte complexes (COCs) were obtained from local abattoir. After aspiration, the COCs were allotted into four treatments to evaluation of brilliant cresyl blue (BCB) test. Control treatment (C): oocytes were cultured directly (without exposure to BCB) after recovery in in vitro production (IVP) process. Oocyte treatment (OBCB): immediately after(More)
The presence of corpus luteum may have a local effect on metabolite composition of follicular fluid (FF) and could indirectly influence follicular development and oocyte quality. The purpose of this study was to examine the influence of the corpus luteum on metabolite composition of follicular fluid (FF), harvested from different-sized follicles and the(More)
Artificial collapse of the blastocoel cavity before vitrification can improve the quality of warmed embryos, yet how reduction of blastocoel fluid impacts formation of the blastocyst cell lineages is not clear. The present study assessed the effect of pre-vitrification blastocoel fluid reduction on the survival, hatching rate, and the expression of genes(More)
The purpose of this study was to investigate leptin gene polymorphisms and their relationships with the characteristics of sperm quality and testicular dimensions. Semen samples were collected from 96 Sanjabi rams during autumn and spring seasons over two years. Simultaneously, the dimensions of length, width and scrotal circumference were measured. Blood(More)
BACKGROUND Previous studies reported many discrepancies about the effects of corpus luteum (CL) and ovarian follicle size on the developmental competence of oocytes. OBJECTIVE The aim of this study was to investigate the effects of CL and different size of follicle on the developmental potential of bovine oocytes. MATERIALS AND METHODS After ovarian(More)
The aim of the current study was to investigate the effects of the presence or absence of corpus luteum (CL) on in vitro developmental competence of bovine oocytes. In experiment 1, cumulus oocyte complexes (COCs) were collected from slaughterhouse ovaries and divided according to the presence (CL(+) oocytes) or absence (CL(-) oocytes) of a CL in the ovary.(More)