Akkaraman Koyunlarının Bazı Üreme Özellikleri Üzerine Progesteron ve Östrojen Hormon Seviyelerinin Etkileri

Bu çalışmada, Akkaraman koyunlarının üreme döneminde progesteron ve östrojen hormon düzeylerini ve bu hormonların bazı üreme özellikleri üzerine etkileri incelenmiştir. İncelenen 31 baş koyunda doğum oranı %90.32; tek doğum oranı %53.57; ikizlik oranı %46.42; kuzu verimi %132.25 ve tek doğuma kuzu oranı ise 1.46 olmuştur. Birinci ikinci östrus arası progesteron seviyeleri tek doğuran koyunlarda 3.69-12.20 ng/ml; ikiz doğuran koyunlarda 3.04- 10.44 ng/ml; östrojen miktarları tek doğuran koyunlarda 39.40-84.03 pg/ml ve ikiz doğuran koyunlarda 52.44-72.77 pg/ml olarak bulunmuştur. Progesteronun anöstrus dönemindeki seviyesi 0.20- 10.20 ng/ml; östrojenin 6.30-169.60 pg/ml olmuştur. Östrojen hormonunun doğum tipi üzerine etkisi önemsiz; progesteron seviyelerinin ikinci östrustan önceki ikinci ve üçüncü günlerde doğum tipine etkisinin önemli olduğu (P

The Effects of Progesterone and Estrogen Hormone Levels on Some Reproductive Characteristics of The Akkaraman Sheep

In this study, progesterone and estrogen hormone levels ofAkkaraman (White Karaman/WK) sheep and their effects on somereproductive traits were investigated. The data obtained, from 31ewes, as 90.32% for lambing, 53.57% for a single birth, 46.42% fortwinning, 132.25% for lamb production and 1.46 for litter size.Between the first and second estrus, progesterone levels were foundto be between 3.69-12.20 ng/ml for singles and 3.04-10.44 ng/ml fortwins; estrogen levels were determined to be between 39.40-84.03pg/ml for singles and 52.44-72.77 pg ml for twins. The equivalentvalues at anestrus period of progesterone were 0.20-10.20 ng/ml, andestrogen levels were 6.30-169.60 pg/ml. The effects of birth type onestrogen level were not-significant, while progesterone levels weredetermined to be significant on the second and third days before thesecond estrus (P

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Akçapınar H 2000. Koyun Yetiştiriciliği 2. Baskı, ISBN: 975-96978-1-5, TR: İsmat matbaası.
Akçapinar H, Kadak R 1982. The effects of some factors on the duration of pregnancy and birth weight in Akkaraman and Morkaraman sheep breeds. Vet J Ankara Univ 29: 392-400.
Akçapınar H, Kadak R, Odabaşioğlu F 1982. Comparative investigations on fertility and milk yield of Morkaraman and Kangal-Akkaraman sheep, Vet J Ankara Univ 29: 379-391.
Akçapınar H, Özbeyaz C, Ünal N, Avci M 2000. the possibilities of developing dam and sire lines using Akkaraman, Sakız and Kıvırcık sheep breeds for lamb production I. Fertility in Akkaraman sheep, survival rate and growth characteristics of Sakız x Akkaraman F1 and Kıvırcık x Akkaraman F1 Lambs, Turk J Vet Anim Sci 24: 71-79.
Atasoy F, Ünal N, Akçapinar H, Mundan D 2003. Some production traits of Karayaka and Bafra (Chios x Karayaka B1) sheep. Turk J Vet Anim Sci 27: 259- 264.
Ali A, Derar R, Hussein H 2006. Seasonal variation of the ovarian follicular dynamics and luteal functions of sheep in the subtropics. Theriogenology 66: 463- 469.
Ali A, Hayder M 2008. Seasonal variation of reproductive performance, foetal development and progesterone concentrations of sheep in the subtropics. Reprod Domest Anim 43: 730-734.
Arsoy D, Sağmanlıgil V 2018. Reproductive cycles in white Karaman ewes: comparison of ovarian hormone secretion and reproductive behavior in non-pregnant and pregnant ewes in semi-intensive conditions. Acta Scientiarum 10.4025/ actascianimsci.v40i1.39908.
Bartlewski PM Beard AP, Cook SJ, Rawlings NC 1998. Ovarian follicular dynamics during anoestrus in ewes. J Reprod Fertil 113: 275-285.
Bartlewski PM, Baby TE, Giffin JL 2011. Reproductive cycles in sheep. Anim Reprod Sci 124: 259-268.
Bartlewski PM, Beard AP, Cook SJ, Chandolia RK, Honaramooz A, Rawlings NC 1999. Ovarian antral follicular dynamics and their relationships with endocrine variables throughout the oestrous cycle in breeds of sheep differing in prolificacy. J Reprod Fertil 115: 11-124.
Bartlewski PM, Sohal J, Paravinja V, Baby T, Oliveira MEF, Murawski M, Schwarz T, Zieba DA, Keisler DH 2017. Is progesterone the key regulatory factor behind ovulation rate in sheep? Domest Anim Endocrin 58: 30–38.
Büyüktekin M, Öztürk A 2018. Effects of some factors on reproduction perfoemance of Akkaraman sheep in breeder flocks in Konya province, Turkey. Selcuk J Agr Food Sci, 31 (1): 87-90.
Canoğlu E, Saribay K 2012. Üreme kanalı morfolojisi ve üreme fizyolojisi. (Çiftlik Hayvanlarında Doğum ve Jinekoloji TR: Medipres: Ed. Semecan A, Kaymaz M, Fındık M, Rişvanlı A, Köker A) 521-548.
Coelho LA, Rodrigues PA, Nonaka KO, Sasa A, Balieiro JCC, Vincente WRR, Cipolla-Neto J 2006. Annual pattern of plasma melatonin and progesterone concentrations in hair and wool ewe lambs kept under natural photoperiod at lower latitudes in the southern hemisphere. J Pineal Res 41: 101-107.
Cunningham NF, Symons AM, Saba N 1975. Levels of progesterone, LH and FSH in the plasma of sheep during the oestrous cycle. J Reprod Fertil 45: 177- 180.
Çolakoğlu N, Özbeyaz C 1999. Comparison of Some Production Traits in Malya and Akkaraman Sheep. Turk J Vet Anim Sci 23: 351-360.
Devonish EH, Knights M, Inskeep EK 2009. Effect of expected peripheral concentrations of progesterone on ovulation rate and litter size in Barbados blackbelly ewes. Sheep goat res. j. 24: 17-25.
Goodman RL, Inskeep EK 2015. Control of the ovarian cycle of the sheep. (Knobil and Neill’s Physiology of Reproduction Fourth Edition Volume 2. London, UK: Elsevier: Ed. Plant TM, Zelenik AJ) 1259-1305.
Güler M 2007. Gebelik fizyolojisi. (Evcil Hayvanlarda Doğum ve İnfertilite. TR: Medisan: Ed. Alaçam E) 99-108.
Haliloğlu S, Serpek B 2000. The effects of plasma vitamin c and ceruloplasmin levels and exogenous vitamin c supplementation on reproduction in sheep. Turk J Vet Anim Sci 24: 403-411.
Johnson SK, Sailey RA, Inskeep EK, Lewis PE 1996. Effect of peripheral concentrations of progesterone on follicular growth and fertility in ewes. Domest Anim Endocrin 13: 69-79.
Karagül H, Sallmann HP, Fidanci UR, Sel T, Çelik S, Vural R, Önal A, Ünal N 1999. The effect of vitamin E and selenium deficiency on the reproductive hormones and antioxidative systems in akkaraman Sheep. Proceedings of Deutsch-Türkische Agrarforschug-6. Symposium, 383-388 Giessen, Germany.
Mitchell LM, King ME, Aitken RP, Gebbie FE, Wallace JM 1999. Ovulation, fertilization and lambing rates, and peripheral progesterone concentrations, in ewes inseminated at a natural oestrus during November or February. J Reprod Fertil 115: 133- 140.
Özarslan B 2014. Investigation of reproduction traits in bafra sheep breeding. Ankara University, Graduate School of Health Science, PhD, Ankara, Turkey.
Seekallu SV, Toosi BM, Duggavathi R, Barrett DMW, Davies KL, Waldner C, Rawlings NC 2010. Ovarian antral follicular dynamics in sheep revisited: comparison among oestrous cycles with three or four follicular waves. Theriogenology 73: 670-680.
Sulu N, Özsar S, Güven B 1988. Determination of progesterone levels in blood sera in Sakız sheep by use of EIA. Vet J Ankara Univ 35: 209-217.
Tekerli M, Gündoğan M, Akinci Z, Akcan A 2002. Determination of production characteristics of Akkaraman, Daglic, Chios and Awassi sheep in the conditions of Afyon Province I. Fertility and survival rate. Lalahan Hay. Araşt. Enst. Derg. 42: 29-36.
Tworoger SS, Hankinson SE 2006. Collection, processing and storage of biological samples in epidemiologic studies: sex hormones, carotenoids, inflammatory markers and proteomics as examples. Cancer Epidemiol. Biomarkers Prev. 15: 1578-1581.
Ünal N, Akçapinar H. Behavior in sheep 1994. Bahri Dağdaş Hay. Araşt. Derg. 4: 113-123.
Ünal N, Atasoy F, Akçapinar H, Erdoğan M 2003. Fertility traits, survival rate and growth characteristics of Karayaka and Bafra (Chios x Karayaka B1) Genotypes. Turk J Vet Anim Sci 27: 265-272.
Ünal N, Akçapinar H, Atasoy F, Koçak S, Aytaç M 2004. The body weight and fleece traits of White Karaman, Chios x White Karaman F1, B1, Kıvırcık x White Karaman F1, B1, Karayaka and Bafra Sheep. Lalahan Hay. Araşt. Enst. Derg. 44: 15-22.
Ünal N, Aytaç M, Koçak S, Erol H 2006a. Some of the reproduction characteristics in various local pure and crossbred sheep genotypes. Lalahan Hay. Araşt. Enst. Derg. 46: 45-57.
Ünal N, Akçapinar H, Atasoy F, Aytaç M 2006b. Some reproductive and growth traits of crossbred genotypes produced by crossing local sheep breeds of kivircik x white karaman and chios x white karaman in steppe conditions. Archiv Tierzucht 49: 55-63.
Yakan A, Ünal N, Dalci MT 2012. Reproductive traits, growth and survival rates of akkaraman, awassi and kivircik sheep breeds in Ankara conditions. Lalahan Hay. Araşt. Enst. Derg. 52: 1-10.