the hypothesis of this experiment was that the various sources of dietary fat with different dietary ratios of polyunsaturated fatty acids (pufas) to saturated fatty acids (sfas) would alter the reproduction parameters of mature rams. twelve mature rams were randomly allotted to one of four dietary treatments in a completely randomized design. dietary treatments were: 1) ration with 4% soybean ...

Two experiments were performed to determine the endocrine and ovarian changes in medroxyprogesterone acetate (MAP)-primed ewes after ram introduction. Experiment 1 was performed during the mid-breeding season with 71 ewes primed with an intravaginal MAP sponge for 12 days. While the control (C) ewes (n = 35) were in permanent contact with rams, the ram effect (RE) ewes (n = 36) were isolated fo...

This study tested the hypothesis that central administration of corticotrophin-releasing hormone (CRH) and/or arginine vasopressin (AVP) will affect the secretion of LH in rams and that testosterone is necessary for these actions to occur. Plasma LH levels were measured in castrated rams during 1 h infusion of either 100 microliter vehicle/mock cerebrospinal fluid (CSF) or mock CSF containing 2...

Abstract The physical and chemical properties structure of lamb fat are derived from the qualitative composition content saturated unsaturated fatty acids. Higher levels acid in sheep increase melting point yield a solid lard. Characteristic deposition carcass young is closely related to meat productivity nutritional value mutton. paper presents results prove influence genotype purebred Tsigai ...

Abstract Self-consistent energy system (SCES) that integrates volatile renewable energy, challenges power operation of highway service areas. How to evaluate its resilience and efficiency is a key issue for the entire SCES. In this paper, we investigate assessment approach Based on electricity consumption model consisting different functional sections SCES in areas, by deriving corresponding th...

The article presents the results of studies indicators live weight and internal organs purebred Khalkha crossbreed Khalkha-Suffolk rams, depending on method their fattening. Experimental were conducted in Selenga aimak Mongolia laboratories Mongolian University Natural Sciences. According to research, it was revealed that rams inferior terms at birth age 8 months. When fed with rapeseed cake, h...

an experiment was conducted to evaluate the impact of melatonin on scrotal circumference and semen parameters using 8 shall rams in april until june 2004 (out of season). in the april, the rams were randomly allocated in two groups. four animal received 3 implants of melatonin tablets (totally 54 mg/ram) at the base of ear and the other 4 rams were considered as control group and kept at the id...

in this study 21721 pedigree records of iranian baluchi sheep registered during 30 years (1979 to 2008) at abasabad breeding station were used to estimate pedigree completeness level, inbreeding and average relationship coefficients of animals. during the studied years pedigree completeness level has a positive trend with the most recent cohort of lambs born in 2008 having pedigrees with 6.2 eq...

Effects of Dorset, Finnsheep, Romanov, Texel, and Montadale breeds for performance as sires were estimated in the initial phase of a comprehensive evaluation of these breeds as contributors to sheep crossbreeding systems. Objectives were to evaluate the effects of ram breed, ewe breed, season of mating, and two-way interactions. Rams from the five breeds were single-sire-mated with ewes from tw...