Abdulkadir KESKİN

Article | 2016 | Turkish Journal of Veterinary and Animal Sciences40 ( 1 )

The aims of this study were to determine the factors that affect follicle size at the time of artificial insemination (AI) and to detect the relationship between ovulatory follicle size at the time of AI and pregnancy rate in dairy cows. A total of 1428 follicle size measurements were obtained from Holstein-Friesian (HF) and Swedish Red (SR) cows that were inseminated with the fixed-timed AI protocols used in this study. Follicle size was affected by breed (P - 0.0001), milk production (P - 0.01), parity (P - 0.05), and season (P = 0.04). Follicle size was greater (P = 0.0001) in the HF (15.55 mm) than the SR cows (14.88 mm). Multip . . .arous cows had larger (P = 0.04) follicles (15.35 mm) than the primiparous cows (15.07 mm). Cows with follicle sizes between 13.5 and 17.5 mm were more likely to be pregnant than cows with other sizes follicles (P < 0.01). Embryonic loss was lower (P < 0.01) in cows with follicle sizes between 13.5 and 16.5 mm. Thus, the follicle size was affected by breed, milk production, parity, and season. Pregnancy and embryonic loss in lactating dairy cows were significantly related to follicle size. - Author Keywords: Cow; follicle size; timed AI protocol; pregnancy rat More less

Fatih Ramazan İSTANBULLUGİL | Hüseyin KARADAĞ | Şamil SEFERGİL

Article | 2013 | Turkish Journal of Veterinary and Animal Sciences37 ( 2 )

The purpose of this study was to investigate the formation of the plexus sacralis in the Kyrgyz pheasant (Phasianus colchicus mongolicus) and the origin of the nerves emerging from the plexus sacralis. Five adult male Kyrgyz pheasants were used that had been hunted in their natural habitat near the town of Tokmok in the Chuy region of Kyrgyzstan. The plexus sacralis was found to be formed in the lumbar region by the ventral strands of sacral nerves 1 to 5, originating in the spinal cord. The plexus is composed of the truncus cranialis, which consists of the ventral strands of the first 3 nerves united in the fossa renalis region, th . . .e truncus medianus formed by the ventral strand of the 4th nerve alone, and the truncus caudalis formed by the strand of the 5th ventral nerve alone. These 3 trunci are united to form the nervus ischiadicus at the entrance to the foramen ischiadicum. After passing through the foramen ischiadicum, the nerve separates into 5 strands as follows: the 1st strand forms the joint root of n. tibialis and n. peroneus, the 2nd strand forms the n. coxalis caudalis, the 3rd and 5th strands form the rr. musculares, and the 4th strand forms the n. cutaneus femoris caudalis. - Keywords: Pheasant, plexus sacralis, Mare More less

Abdulkadir KESKİN

Article | 2016 | Turkish Journal of Veterinary and Animal Sciences40 ( 3 )

The aim of this study was to determine the effects of three different dietary starch levels on postpartum milk yield, blood metabolites, and reproductive traits in cows. A total of 23 primiparous Holstein-Friesian cows were fed three different diets including different starch levels on a dry matter basis from parturition until day 80. Cows were randomly assigned into the three groups according to the starch levels: low (LS, 16%, n = 7), medium (MS, 20%, n = 8), and high (HS, 24%, n = 8). Milk yields were recorded daily, and body condition score (BCS) was determined every week. Transrectal ultrasonography was performed, and blood sam . . .ples were taken three times each week to determine reproductive traits and blood metabolites. Although the milk yield was greater in the LS group compared to the other groups, BCS and blood metabolites did not differ among the groups. The postpartum follicular patterns, times of first postpartum ovulation, and involution processes did not differ among the groups. In addition, the ovulatory follicle and corpus luteum sizes and the progesterone levels after induced estrus were numerically greater in HS than other groups. Thus, there were no effects of starch levels on postpartum reproductive traits. - Keywords: Nutrition, starch, postpartum, reproductive traits, co More less

Askarbek TÜLÖBAEV | Hasan ALPAK

Article | 2012 | Turkish Journal of Veterinary and Animal Sciences36 ( 4 )

The purpose of the present study was to determine the live weight development phases from hatchling to adolescent bird of Japanese quails bred in Kyrgyzstan, and to determine the age-related changes in body measurements. Adolescent birds were found to have a body length (distance between first vertebra thoracalis to end of sacrum) coefficient of 3.0, a sternum front to rear end length coefficient of 3.3, a tibia length of 2.34, and a pelvic width (distance between right and left acetabulum) coefficient of 1.58. This indicates good development of the quails Keywords: Growth and development, live weight, body measurements, growth coef . . .ficient, quai More less