非繁殖季節におけるサフォーク種およびブールーラー・ドーセットとその交雑種の簡易過剰排卵誘起法について 血漿中のE2およびLH濃度の変化, 卵巣反応および回収卵の性状に与える影響
1995年と1996年のめん羊の非繁殖季節に, 非多産系のサフォーク種8頭と多産系のブールーラー・ドーセットの交雑種16頭に対し, それぞれ簡易的過剰排卵法である20mgFSH1回投与+500IUeCGまたは通常法である20mgFSH6回分割投与+500IUeCGを施し, 種および過剰排卵処置の違いが, 発情前後の血漿中E2およびLH濃度, 卵巣反応および回収卵の性質に及ぼす影響を検討した。 処置に反応した, 全ての多産系のあん羊が過剰排卵 (排卵数4以上) したのに対し, 非多産系のめん羊の4/8が3個以下の多排卵であった。回収卵の性状については, 多産系のめん羊では新鮮精液で良い受精率が得...
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| Published in | 日本緬羊研究会誌 Vol. 1998; no. 35; pp. 12 - 22 |
|---|---|
| Main Authors | , , , , , , , |
| Format | Journal Article |
| Language | Japanese |
| Published |
日本緬羊研究会
20.12.1998
|
| Online Access | Get full text |
| ISSN | 0389-1305 2186-1013 |
| DOI | 10.11595/jpnjsheepsci1964.1998.12 |
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| Abstract | 1995年と1996年のめん羊の非繁殖季節に, 非多産系のサフォーク種8頭と多産系のブールーラー・ドーセットの交雑種16頭に対し, それぞれ簡易的過剰排卵法である20mgFSH1回投与+500IUeCGまたは通常法である20mgFSH6回分割投与+500IUeCGを施し, 種および過剰排卵処置の違いが, 発情前後の血漿中E2およびLH濃度, 卵巣反応および回収卵の性質に及ぼす影響を検討した。 処置に反応した, 全ての多産系のあん羊が過剰排卵 (排卵数4以上) したのに対し, 非多産系のめん羊の4/8が3個以下の多排卵であった。回収卵の性状については, 多産系のめん羊では新鮮精液で良い受精率が得られたが (87.7%), 凍結融解精液および新鮮希釈精液では受精率が悪かった (10.5%, 23.2%) 。しかし, 受精した卵子は胚盤胞および拡張胚盤胞が多かった。非多産系のめん羊は受精率は良好であったが (簡易法75.0%, 通常法100%), 通常法では正常胚は66.7%とやや少なく, 簡易法では正常胚が20.0%とさらに少なかった。多産系のめん羊では繁殖季節と同様, 正常の過剰排卵時のE2の濃度変化を示していたが, 非多産系のめん羊ではE2ピークがスポンジ除去近くの早期に見られ, それ以後E2が上昇しない個体が6/8あり, その傾向は簡易法の全頭に認められた。また, 内因性のLHサージが, 種および処置に関係なく, 早期に現れた。以上のように, 非繁殖季節では繁殖季節と異なり, 非多産系のサフォーク種では回収胚の質の低下およびE2濃度上昇の早期化と短縮化がみられた。これは特に簡易的過剰排卵法で顕著であり, 非多産系の種に対し非繁殖季節に過剰排卵を行う場合は, 数回にわたるpFSHの投与が必要と思われ, 過剰排卵法の検討が必要であると思われる。一方, 多産系のめん羊は, 非繁殖季節も繁殖季節と同様の血漿中のE2濃度の変化や, 卵巣反応を維持していた。 |
|---|---|
| AbstractList | 1995年と1996年のめん羊の非繁殖季節に, 非多産系のサフォーク種8頭と多産系のブールーラー・ドーセットの交雑種16頭に対し, それぞれ簡易的過剰排卵法である20mgFSH1回投与+500IUeCGまたは通常法である20mgFSH6回分割投与+500IUeCGを施し, 種および過剰排卵処置の違いが, 発情前後の血漿中E2およびLH濃度, 卵巣反応および回収卵の性質に及ぼす影響を検討した。 処置に反応した, 全ての多産系のあん羊が過剰排卵 (排卵数4以上) したのに対し, 非多産系のめん羊の4/8が3個以下の多排卵であった。回収卵の性状については, 多産系のめん羊では新鮮精液で良い受精率が得られたが (87.7%), 凍結融解精液および新鮮希釈精液では受精率が悪かった (10.5%, 23.2%) 。しかし, 受精した卵子は胚盤胞および拡張胚盤胞が多かった。非多産系のめん羊は受精率は良好であったが (簡易法75.0%, 通常法100%), 通常法では正常胚は66.7%とやや少なく, 簡易法では正常胚が20.0%とさらに少なかった。多産系のめん羊では繁殖季節と同様, 正常の過剰排卵時のE2の濃度変化を示していたが, 非多産系のめん羊ではE2ピークがスポンジ除去近くの早期に見られ, それ以後E2が上昇しない個体が6/8あり, その傾向は簡易法の全頭に認められた。また, 内因性のLHサージが, 種および処置に関係なく, 早期に現れた。以上のように, 非繁殖季節では繁殖季節と異なり, 非多産系のサフォーク種では回収胚の質の低下およびE2濃度上昇の早期化と短縮化がみられた。これは特に簡易的過剰排卵法で顕著であり, 非多産系の種に対し非繁殖季節に過剰排卵を行う場合は, 数回にわたるpFSHの投与が必要と思われ, 過剰排卵法の検討が必要であると思われる。一方, 多産系のめん羊は, 非繁殖季節も繁殖季節と同様の血漿中のE2濃度の変化や, 卵巣反応を維持していた。 |
| Author | 高橋, 三穂 宮本, 明夫 石田, 直久 福井, 豊 山田, 亜紀 岡田, みどり 山村, 匡男 渡辺, 裕子 |
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| References | 24) GHERARDI, P. B. and D. R. LINDSAY, The effect of season on the ovulatory response of Merino ewes to serum from pregnant mares. J. Reprod. Fertil., 60 : 425-429. 1980. 4) YAMADA, A., M. KAWANA, Y. TAMURA, A. MIYAMOTO and Y. FUKUI, Effect of single or multiple injection of follicle stimulating hormone combined with pregnant mare serum gonadotropin on superovulatory response, and normal and freezable embryos in ewes. J. Reprod. Dev., 42 : 81-87. 1996. 15) MARTIN, G. B. and G.B. THOMAS, Roles of communication between the hypothalamus, pituitary gland and ovary in the breeding activity of ewes. In : Reproductive Physiology of Merino Sheep. Concepts and consequences. (OLDHAM, C. M., G. B. MARTIN and I. W. PURVIS, eds.) School of Agriculture (Animal Science), The University of Western Australia. Perth. 23-40. 1990. 3) THOMPSON, J.G.E., A. C. SIMPSON, R.W. JAMES and H.R. TERVIT, The application of progesterone-containing CIDRTM devices to superovulated ewes. Theriogenology, 33 : 1297-1304. 1990. 27) WEBB, R., G. BAXTER, D. MCBRIDE, M. RITCHIE and A. J. SPRINGBERT, Mechnizm controlling ovulation rate ewes in relation to seasonal anoestrus. J. Reprod. Fertil., 94 : 143-151. 1992. 2) JABBOUR, H.N. and G. EVANS, Ovarian and endocrine responses of Merino ewes to treatment with PMSG and / or FSH-P. Anim. Reprod. Sci., 26 : 93-106. 1991. 26) SOUZA, C. J. H., B. K. CAMPBELL and D. T. BAIRD, Follicular dynamics and ovarian steroid secretion in sheep during anoestus. J. Reprod.Fertil., 108 : 101-106. 1996. 10) SAMARTZI, F., C. Boscos, E. VAINAS and P. TSAKALOF, Superovulatory response of Chios sheep to PMSG during spring and autumn. Anim. Reprod. Sci., 39 : 215-222. 1995. 5) WATANABE, H., A. MIYAMOTO, M. OKADA, N. ISHIDA, H. KIMURA and Y. FUKUI, A simple super-ovulation method of a single injection of follicle-stimulating hormone combined with equine chorionic gonadotropin for superovulation of Suffolk ewes during the breeding season : I. Effects of different treatments on the endocrine profiles. J. Reprod. Dev., 44 : 169-176, 1998. 6) WATANABE, H., H. KIMURA, M. OKADA, N. ISHIDA, A. MIYAMOTO, and Y. FUKUI., A simple super-ovulation method of a single injection of follicle-stimulating hormone combined with equine chorionic gonadotropin for superovulation of Suffolk ewes during the breeding season : II. The ovarian responses and embryo qualities. J. Reprod. Dev., 44 : 167-183, 1998. 11) FUKUI, Y., Y. TASHIRO, H. KIMURA and A. MIYAMOTO, Effects of progestogen treatment and season on superovulatory responses of ewes and development capacity of early embryos recovered. J. Reprod. Dev., 40 : 251-257. 1994. 20) WIJAYAGUNAWARDANE, M. P. B., A. MIYAMOTO, W. A. CERBITO, M. ACOSTA, M. TAKAGI and K. SATO, Local distributions of oviductal estradiol, progesterone, prostaglandins, oxytocin and endothelin-1 in cyclic cow. Theriogenology, 49 : 607-618. 1998. 23) CAHILL, L. P. Folliculogenesis in the sheep as influenced by breed, season and oestrous cycle. J. Reprod. Fertil., 30, Suppl. : 135-142. 1981. 14) YAMADA, A., M. TAKAHASHI, M. YAMAMURA and Y. FUKUI, A simple superovulation and in vivo fertilization of artificially inseminated ewes during the non-breeding season. Jpn. J. Sheep Sci., 33 : 35-42. 1996. (In Japanese). 28) LAND, R. B., The sensitivity of the ovulation rate of Finnish Landrace and Blackface ewes to exogenous oestrogen. J. Reprod. Fertil., 48 : 217-218. 1976. 12) COGNIE, Y., D. CHUPIN and J. SAUMANDE, The effect of modifying the FSH/LH ratio during the superovulatory treatment in ewes. Theriogenology, 25 : 148. 1986. 18) Fuxul, Y., Effect of diluents, thawing temperatures and materials of thawing containers on survival of ram spermatozoa frozen by the pellet method. Jpn. J. Anim. Reprod., 25 : 160-169. 1979. 25) NOEL, B., J. L. BISTER and R. PAQUAY, Ovarian follicular dynamics in Suffolk ewes at different periods of the year. J. Reprod. Fertil., 99 : 695-700. 1993. 7) HAFEZ, E.S.E., Embryo transfer, IVF and genetic engineering. In :.Reproduction in Farm Animals. (HAFEZ, E. S. E., ed.) 528-570. Lea & Febiger. Philadelphia. 1987. 13) DATTENA, M., S. VESPIGNANI, A. BRANCA, M. GALLUS, S. LEDDA, S. NAITANA and P. CAPPAI, Superovulation response and quality of embryos recovered from anestrus ewes after single injection of porcine FSH dissolved in polyvinylpyrrolidone. Theriogenology, 42 : 235-239. 1994. 19) TERVIT, H. R. and P. G. HAVIK, A modified technique for flushing ova from the sheep uterus. New Zealand Vet. J., 24 : 138-140. 1976. 8) FUKUI, Y., Breeding and synchronization of estrus and ovulation of sheep. In : Reproductive Technology in Sheep. (FUKUI, Y., ed.) 37-63. Tokyo University of Agriculture Press. Tokyo. 1989. (In Japanese). 21) MUTAYOBA, B. M., H. H. D. MEYER, D. SCHAMS and E. SCHALLENBERGER, Development of a sensitive immunoassay for LH determination in bovine plasma using the streptavidin-biotin technique. Acta Endocrinol. (Copenh.), 122 : 227-232. 1990. 22) McNATTY, K. P., K. M. HUDSON, S. LUN, M. HEATH, M. GIBB, K. BALL, J. M. McDIARMID and D. C. THURLEY, Changes in gonadotrophin secretion and ovarian antral follicular activity in s seasonally breeding sheep thorough out the year. J. Reprod. Fertil., 70 : 309-321. 1984. 16) MAXWELL, W. M. C., L. G. BUTTER and H.R. WILSON, Intrauterine insemination of ewes with frozen semen. J. Agric. Sci. (Camb.), 102 : 233-235. 1984. 1) TORRES, S., Y. COGNIE and G. COLAS, Transfer of superovulated sheep embryos obtained with different FSH-P. Theriogenology, 27 : 407-419. 1987. 17) SALAMON, S. and D. VISSER, Effect of composition of Tris-based diluents and thawing solution on survival of ram spermatozoa frozen by the pellet method. Aust. J. Biol. Sci., 25 : 605-618. 1972. 9) RYAN, J. P., J. R. HUNTON and W. M. C. MAXWELL, Increased production of sheep embryos following superovulation of Merino ewes with a combination of pregnant mare serum gonadotrophin and follicle stimulating hormone. Reprod. Fertil. Dev., 3 : 551-560. 1991. 29) KUSAKARI, N., M. OHARA and Y. MORI, Seasonal variation in the timing of estrus behavior, LH surge and ovulation following the treatment with progesterone and PMSG in Suffolk ewes. J. Reprod. Dev., 41 : 249-254. 1995. |
| References_xml | – reference: 24) GHERARDI, P. B. and D. R. LINDSAY, The effect of season on the ovulatory response of Merino ewes to serum from pregnant mares. J. Reprod. Fertil., 60 : 425-429. 1980. – reference: 10) SAMARTZI, F., C. Boscos, E. VAINAS and P. TSAKALOF, Superovulatory response of Chios sheep to PMSG during spring and autumn. Anim. Reprod. Sci., 39 : 215-222. 1995. – reference: 26) SOUZA, C. J. H., B. K. CAMPBELL and D. T. BAIRD, Follicular dynamics and ovarian steroid secretion in sheep during anoestus. J. Reprod.Fertil., 108 : 101-106. 1996. – reference: 1) TORRES, S., Y. COGNIE and G. COLAS, Transfer of superovulated sheep embryos obtained with different FSH-P. Theriogenology, 27 : 407-419. 1987. – reference: 15) MARTIN, G. B. and G.B. THOMAS, Roles of communication between the hypothalamus, pituitary gland and ovary in the breeding activity of ewes. In : Reproductive Physiology of Merino Sheep. Concepts and consequences. (OLDHAM, C. M., G. B. MARTIN and I. W. PURVIS, eds.) School of Agriculture (Animal Science), The University of Western Australia. Perth. 23-40. 1990. – reference: 3) THOMPSON, J.G.E., A. C. SIMPSON, R.W. JAMES and H.R. TERVIT, The application of progesterone-containing CIDRTM devices to superovulated ewes. Theriogenology, 33 : 1297-1304. 1990. – reference: 5) WATANABE, H., A. MIYAMOTO, M. OKADA, N. ISHIDA, H. KIMURA and Y. FUKUI, A simple super-ovulation method of a single injection of follicle-stimulating hormone combined with equine chorionic gonadotropin for superovulation of Suffolk ewes during the breeding season : I. Effects of different treatments on the endocrine profiles. J. Reprod. Dev., 44 : 169-176, 1998. – reference: 9) RYAN, J. P., J. R. HUNTON and W. M. C. MAXWELL, Increased production of sheep embryos following superovulation of Merino ewes with a combination of pregnant mare serum gonadotrophin and follicle stimulating hormone. Reprod. Fertil. Dev., 3 : 551-560. 1991. – reference: 23) CAHILL, L. P. Folliculogenesis in the sheep as influenced by breed, season and oestrous cycle. J. Reprod. Fertil., 30, Suppl. : 135-142. 1981. – reference: 13) DATTENA, M., S. VESPIGNANI, A. BRANCA, M. GALLUS, S. LEDDA, S. NAITANA and P. CAPPAI, Superovulation response and quality of embryos recovered from anestrus ewes after single injection of porcine FSH dissolved in polyvinylpyrrolidone. Theriogenology, 42 : 235-239. 1994. – reference: 18) Fuxul, Y., Effect of diluents, thawing temperatures and materials of thawing containers on survival of ram spermatozoa frozen by the pellet method. Jpn. J. Anim. Reprod., 25 : 160-169. 1979. – reference: 6) WATANABE, H., H. KIMURA, M. OKADA, N. ISHIDA, A. MIYAMOTO, and Y. FUKUI., A simple super-ovulation method of a single injection of follicle-stimulating hormone combined with equine chorionic gonadotropin for superovulation of Suffolk ewes during the breeding season : II. The ovarian responses and embryo qualities. J. Reprod. Dev., 44 : 167-183, 1998. – reference: 11) FUKUI, Y., Y. TASHIRO, H. KIMURA and A. MIYAMOTO, Effects of progestogen treatment and season on superovulatory responses of ewes and development capacity of early embryos recovered. J. Reprod. Dev., 40 : 251-257. 1994. – reference: 20) WIJAYAGUNAWARDANE, M. P. B., A. MIYAMOTO, W. A. CERBITO, M. ACOSTA, M. TAKAGI and K. SATO, Local distributions of oviductal estradiol, progesterone, prostaglandins, oxytocin and endothelin-1 in cyclic cow. Theriogenology, 49 : 607-618. 1998. – reference: 27) WEBB, R., G. BAXTER, D. MCBRIDE, M. RITCHIE and A. J. SPRINGBERT, Mechnizm controlling ovulation rate ewes in relation to seasonal anoestrus. J. Reprod. Fertil., 94 : 143-151. 1992. – reference: 7) HAFEZ, E.S.E., Embryo transfer, IVF and genetic engineering. In :.Reproduction in Farm Animals. (HAFEZ, E. S. E., ed.) 528-570. Lea & Febiger. Philadelphia. 1987. – reference: 28) LAND, R. B., The sensitivity of the ovulation rate of Finnish Landrace and Blackface ewes to exogenous oestrogen. J. Reprod. Fertil., 48 : 217-218. 1976. – reference: 21) MUTAYOBA, B. M., H. H. D. MEYER, D. SCHAMS and E. SCHALLENBERGER, Development of a sensitive immunoassay for LH determination in bovine plasma using the streptavidin-biotin technique. Acta Endocrinol. (Copenh.), 122 : 227-232. 1990. – reference: 25) NOEL, B., J. L. BISTER and R. PAQUAY, Ovarian follicular dynamics in Suffolk ewes at different periods of the year. J. Reprod. Fertil., 99 : 695-700. 1993. – reference: 22) McNATTY, K. P., K. M. HUDSON, S. LUN, M. HEATH, M. GIBB, K. BALL, J. M. McDIARMID and D. C. THURLEY, Changes in gonadotrophin secretion and ovarian antral follicular activity in s seasonally breeding sheep thorough out the year. J. Reprod. Fertil., 70 : 309-321. 1984. – reference: 16) MAXWELL, W. M. C., L. G. BUTTER and H.R. WILSON, Intrauterine insemination of ewes with frozen semen. J. Agric. Sci. (Camb.), 102 : 233-235. 1984. – reference: 12) COGNIE, Y., D. CHUPIN and J. SAUMANDE, The effect of modifying the FSH/LH ratio during the superovulatory treatment in ewes. Theriogenology, 25 : 148. 1986. – reference: 2) JABBOUR, H.N. and G. EVANS, Ovarian and endocrine responses of Merino ewes to treatment with PMSG and / or FSH-P. Anim. Reprod. Sci., 26 : 93-106. 1991. – reference: 19) TERVIT, H. R. and P. G. HAVIK, A modified technique for flushing ova from the sheep uterus. New Zealand Vet. J., 24 : 138-140. 1976. – reference: 17) SALAMON, S. and D. VISSER, Effect of composition of Tris-based diluents and thawing solution on survival of ram spermatozoa frozen by the pellet method. Aust. J. Biol. Sci., 25 : 605-618. 1972. – reference: 29) KUSAKARI, N., M. OHARA and Y. MORI, Seasonal variation in the timing of estrus behavior, LH surge and ovulation following the treatment with progesterone and PMSG in Suffolk ewes. J. Reprod. Dev., 41 : 249-254. 1995. – reference: 4) YAMADA, A., M. KAWANA, Y. TAMURA, A. MIYAMOTO and Y. FUKUI, Effect of single or multiple injection of follicle stimulating hormone combined with pregnant mare serum gonadotropin on superovulatory response, and normal and freezable embryos in ewes. J. Reprod. Dev., 42 : 81-87. 1996. – reference: 14) YAMADA, A., M. TAKAHASHI, M. YAMAMURA and Y. FUKUI, A simple superovulation and in vivo fertilization of artificially inseminated ewes during the non-breeding season. Jpn. J. Sheep Sci., 33 : 35-42. 1996. (In Japanese). – reference: 8) FUKUI, Y., Breeding and synchronization of estrus and ovulation of sheep. In : Reproductive Technology in Sheep. (FUKUI, Y., ed.) 37-63. Tokyo University of Agriculture Press. Tokyo. 1989. (In Japanese). |
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| Snippet | 1995年と1996年のめん羊の非繁殖季節に, 非多産系のサフォーク種8頭と多産系のブールーラー・ドーセットの交雑種16頭に対し, それぞれ簡易的過剰排卵法である20mgFSH1回投与+500IUeCGまたは通常法である20mgFSH6回分割投与+500IUeCGを施し, 種および過剰排卵処置の違いが,... |
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| StartPage | 12 |
| Subtitle | 血漿中のE2およびLH濃度の変化, 卵巣反応および回収卵の性状に与える影響 |
| Title | 非繁殖季節におけるサフォーク種およびブールーラー・ドーセットとその交雑種の簡易過剰排卵誘起法について |
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| ispartofPNX | 日本緬羊研究会誌, 1998/12/20, Vol.1998(35), pp.12-22 |
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