نوع مقاله : مقاله پژوهشی

نویسندگان

1 دانش آموخته دکتری تخصصی فیزیولوژی دام، گروه علوم دامی، دانشکده کشاورزی، دانشگاه صنعتی اصفهان، اصفهان - ایران و استادیار گروه علوم دامی، دانشکده کشاورزی، دانشگاه یاسوج، یاسوج - ایران

2 دانشیار، گروه علوم دامی، دانشکده کشاورزی، دانشگاه صنعتی اصفهان، اصفهان - ایران.

3 استادیار، گروه علوم دامی، پردیس کشاورزی و منابع طبیعی، دانشگاه تهران، تهران - ایران.

چکیده

در این مطالعه اثر مصرف کوتاه‌مدت جیره حاوی انرژی زیاد و تزریق گنادوتروپین‌ جفت اسب1 (eCG) و گنادوترپین جفت انسان2 (hCG) بر دینامیک فولیکولی، متابولیت‌های خون و پاسخ تولید مثلی میش‌های نائینی بررسی شد. از 45 رأس میش نایینی 3 تا 4 ساله استفاده شد که به سه گروه 15 رأسی تقسیم شدند. تیمارها شامل: 1- جیره نگهداری همراه با تزریق eCG (Me)، 2- جیره کوتاه‌مدت پر انرژی همراه با تزریق eCG (HEe) و 3- جیره کوتاه‌مدت پر انرژی همراه با تزریق eCG و hCG (HEeh). چرخه فحلی تمام میش‌ها با اسفنج‌ حاوی پروژسترون به‌مدت 12 روز در فصل تولیدمثلی، همزمان شد. تغذیه کوتاه مدت جیره پرانرژی به‌مدت 6 روز (از 4 روز قبل گذاشتن اسفنج تا 1 روز پس از برداشتن آن) انجام شد. تزریق eCG یک روز قبل از برداشتن اسفنج و تزریق hCG در روز برداشتن اسفنج و یک روز پس از آن انجام شد. نتایج نشان داد که صرف نظر از نوع هورمون تزریق شده، مصرف کوتاه مدت جیره پرانرژی جمعیت فولیکول‌های متوسط و بزرگ را افزایش (05/0>P) داد. در گروه‌های مصرف کننده جیره پرانرژی غلظت گلوکز، کلسترول و انسولین بیشتر (05/0>P) و غلظت نیتروژن اوره‌ای سرم کمتر (05/0>P) از گروه Me بود. قبل از برداشتن اسفنج، غلظت استرادیول در گروه-های HEe و HEeh کاهش (05/0>P) و پس از آن افزایش (05/0>P) یافت. گروهHEeh بیشترین (05/0>P) نرخ دوقلوزایی (9/42%) را داشت. به‌طور کلی تغذیه کوتاه‌مدت جیره پرانرژی همراه با تزریق گنادوتروپین‌های جفتی موجب افزایش توسعه فولیکولی، تغییر فراسنجه‌های خونی و بهبود عملکرد تولیدمثلی میش‌های نایینی شد.

کلیدواژه‌ها

Abo El-Maaty, A.M. and El-Gawad M.H. (2014). Follicle growth, ovulation rate, body weight change, and antioxidant and metabolic status in three fat-tailed sheep breeds fed a half-maintenance diet. Open Access Animal Physiology. 6: 21-31.
 Acero-Camelo, A., Valencia, E., Rodrlguez, A. and Randel, P.F. (2008). Effects of flushing with two energy levels on goat reproductive performance. Livestock Research for Rural Development. 20(9).
Barrett, D.M., Bartlewski, P.M., Batista-Arteaga, M., Symington, A. and Rawlings, N.C. (2004). Ultrasound and endocrine evaluation of the ovarian response to a single dose of 500 IU eCG following a 12- day treatment with progestagen-releasing intravaginal sponges in the breeding and non-breeding season in ewes. Theriogenology. 61: 311-327.
Bobowiec, R., Kosior-Korzecka, U., Patkowski, K., Gruszecki, T. and Tusinska, E. (2012). Reproductive performance of PLS and BCP ewes exposed to hCG at the follicular phase of the estrous cycle. Medycyna Weterynaryjna. 68: 226-230.
Boscos, C.M., Samartzi, F.C., Dellis, S., Rogge, A., Stefanakis, A. and Krambovitis, E. (2002). Use of progestagen-gonadotrophin treatment in estrus synchronization of sheep. Theriogenology. 58: 1261-1272.
Coyan, K., Ataman, M.B., Erdem, H., Kaya, A. and Kasikci, G. (2003). Synchronization of estrus in cows using double PGF2 alpha, GnRH–PGF2 alpha and hCG-PGF2 alpha combination. Revue de Medecine Veterinaire. 154: 91-96.
Downing, J.A., Joss, J. and Scaramuzzi, R.J. (1999). The effect of a direct arterial infusion of insulin and glucose on the ovarian secretion rates of androstenedione and oestradiol in ewes with an autotransplanted ovary. Journal of Endocrinology. 163: 531-541.
Fuentes, V.R., Sanchez, R. and Fuentes, P.I. (2001). The effect of low doses of Naloxone on the preovulatory surge of LH and on the onset and duration of estrus in the ewe with induced estrus during the non-breeding season. Animal Reproduction Science. 65: 225-230.
Gallet, C., Dupont, J., Campbell, B.K., Monniaux, D., Guillaume, D. and Scaramuzzi, R.J. (2011). The infusion of glucose in ewes during the luteal phase increases the number of follicles but reduces oestradiol production and some correlates of metabolic function in the large follicles. Animal Reproduction Science.127: 154-163.
Habibizad, J., Riasi, A., Kohram, H. and Rahmani, H.R. (2015). Effect of feeding greater amounts of dietary energy for a short-term with or without eCG injection on reproductive performance, serum metabolites and hormones in ewes. Animal Reproduction Science. 160: 82-89.
Hulet, C.V., Blackwell, R.L., Ercanbrack, S.K., Price D.A. and Humphrey, R. D. (1962). Effects of feed and length of flushing period on lamb production in Range ewes. Journal of Animal Science. 21: 505-510.
 Kaminski, S.L., Redmer, D.A., Bass, C.S., Keisler, D.H., Carlson, L.S., Vonnahme, K.A., Dorsam, S.T. and Grazul-Bilska, A.T. (2015). The effects of diet and arginine treatment on serum metabolites and selected hormones during the estrous cycle in sheep. Theriogenology. 83: 808-816.
Kara, C., Orman, A., Topal, E. and Carkungoz, E. (2010). Effects of supplementary nutrition in Awassi ewes on sexual behaviors and reproductive traits. Journal of Biodiversity and Environmental Sciences. 4: 15-21.
Karami-Shabankareh, H., Habibizad, J., Sarsaifi, K., Cheghamirza, K. and Kazemein Jasemi, V. (2010). The effect of the absence or presence of a corpus luteum on the ovarian follicular population and serum oestradiol concentrations during the estrous cycle in Sanjabi ewes. Small Ruminant Research. 93: 180-185.
Karami-Shabankareh, H., Seyedhashemi, S.B., Torki, M., Kelidari, H. and Abdolmohammadi, A. (2012). Effects of repeated administration of hCG on follicular and luteal characteristics and serum progesterone concentrations in eCG-superovulated Sanjabi ewes. Tropical Animal Health and Production. 44: 1865-1871.
 Kelidari, H.R., Souri, M., Shabankareh, H.K. and Hashemi, S.B. (2010). Repeated administration of hCG on follicular and luteal characteristics and serum progesterone concentrations in eCGsuperovulated does. Small Ruminant Research. 90: 95-100.
 Khiati, B., Bacha, S., Hammoudi, S.M. Niard, A. and Guetarn, D. (2012). The use of fluorogestone acetate (FGA) and equine chorionic gonadtrophin (ECG) in out of season breeding improves reproductive performances of Algerian Rembi ewes. African Journal of Agricultural Research. 7: 2149-2152.
Leroy, J.L.M.R., Vanholder, T., Mateusen, B., Christophe, A., Opsomer, G., De Kruif, A., Genicot, G. and Van, S.A. (2005). Non-esterified fatty acids on follicular fluid of dairy cows and their effect on development capacity of bovine oocytes in vitro. Reproduction. 130: 485-495.
Martinez, M.F., McLeod, B., Tattersfield, G., Smaill, B., Quirke, L.D. and Juengel, J.L. (2015). Successful induction of oestrus, ovulation and pregnancy inadult ewes and ewe lambs out of the breeding season using aGnRH + progesterone oestrus synchronisation protocol.  Animal Reproduction Science. 155: 28-35.
Mulvaney, F.J., Morris, S.T., Kenyon, P.R., Morel, P.C.H., West, D.M., Vinoles, C. and Glover, K.M.M. (2013). Comparison between the reproductive performance of ewe hoggets and mature ewes following aprogesterone-based oestrus synchronization protocol. New Zealand Journal of Agricultural Research. 56: 288-296.
Munoz-Gutierrez, M., Blache, D., Martin, G.B. and Scaramuzzi, R.J. (2004). Ovarian follicular expression of mRNA encoding the type I IGF receptor and IGF-binding protein-2 in sheep following five days of nutritional supplementation with glucose, glucosamine or lupins. Reproduction. 128: 747-756.
Pendleton, R.J., Youngs, C.R., Rorie, R.W., Pool, S.H., Memon, M.A. and Godke, R.A. (1992). Follicle stimulating hormone versus pregnant mare serum gonadotropin for superovulation of dairy goats. Small Ruminant Research. 8: 217-224.
Sabra, H.A. and Hassan, S.G. (2008). Effect of new regime of nutritional flushing on reproductive performances of Egyptian Barki Ewes. Global Veterinary. 2: 28-31.
Scaramuzzi, R.J., Brown, H.M. and Dupont, J. (2010). Nutritional and metabolic mechanisms in the ovary and their role in mediating the effects of diet on folliculogenesis: a perspective. Reproduction in Domestic Animal. 45: 32-41.
Scaramuzzi, R.J., Campbell, B.K., Downing, J.F., Kendall, N., Khalid, M., Munoz-Gutierrez, M. and Somchit, A. (2006). A review of the effects of supplementary nutrition in the ewe on the concentrations of reproductive and metabolic hormones and the mechanisms that regulate folliculogenesis and ovulation rate. Reproduction Nutrition Development. 46: 339-354.
Scaramuzzi, R.J. and Martin, G.B. (2008). The importance of interactions among nutrition, seasonality and socio-sexual factors in the development of hormone-free methods for controlling fertility. Reproduction in Domestic Animal Suppliment. (2). 43: 129-136.
Scaramuzzi, R.J., Zouaidi, N., Menassol, J.B. and Dupont, J. (2015). The effects of intravenous, glucose versus saline on ovarian follicles and their levels of some mediators of insulin signaling. Reproductive Biology and Endocrinology. 13: 6.
Senosy, W., Abdel-Raheem, Sh.M., Abd-Allah, M., Fahmy, S., Hassan, E.H. and Derar, R.I. (2013). Effect of transient high-energy diets just after ovulation on ovarian performance and metabolic status in cyclic ewes. Small Ruminant Research. 109: 152-155.
Somchit, A., Campbell, B.K., Khalid, M., Kendall, N.R. and Scaramuzzia, R.J. (2007). The effect of short-term nutritional supplementation of ewes with lupin grain (Lupinus luteus), during the luteal phase of the estrous cycle on the number of ovarian follicles and the concentrations of hormones and glucose in plasma and follicular fluid. Theriogenology. 68: 1037-1046.
Sormunen-Cristian, R. and Jauhiainen, L. (2002). Effect of nutritional flushing on the productivity of Finnish Landrace ewes. Small Ruminant Research. 43: 75-83.
Vinoles, C., Forsberg, M., Martin, G.B., Cajarville, C., Repetto, J. and Meikle, A. (2005). Short-term nutritional supplementation of ewes in low body condition affects follicle development due to an increase in glucose and metabolic hormones. Reproduction. 129: 299-309.
 Vinoles, C., Paganoni, B.L., Glover, K.M.M., Milton, J.T.B., Blache, D., Blackberry, M.A. and Martin, G.B. (2010). The use of a ‘first-wave’ model to study the effect of nutrition on ovarian follicular dynamics and ovulation rate in the sheep. Reproduction. 140: 865-874.
Vinoles, C., Paganoni, B.L., McNatty, K.P., Heath, D.A., Thompson, A.N., Glover, K.M.M., Milton J.T.B. and Martin, G.B. (2014). Follicle development, endocrine profiles and ovulation rate in adult Merino ewes: effects of early nutrition (pre and post natal) and supplementation with lupin grain. Reproduction. 147: 101-110.
Ying, S., Wang, Z., Wang, C., Nie, H., He, D., Jia, R., Wu, Y., Wan, Y., Zhou, Z., Yan, Y., Zhang, Y. and Wang, F. (2011). Effect of different levels of short-term feed intake on folliculogenesis and follicular fluid and plasma concentrations of lactate dehydrogenase, glucose, and hormones in Hu sheep during the luteal phase. Reproduction. 142: 699-710.
Ying, S.J., Xiao, S.H., Wang, C.L., Zhong, B.S., Zhang, G.M., Wang, Z.Y., He, D.Y., Ding, X.L., Xing, H.J. and Wang, F. (2013). Effect of nutrition on plasma lipid profile and mRNA levels of ovarian genes involved in steroid hormone synthesis in Hu sheep during luteal phase. Journal of Animal Science. 91: 5229-5239.