The Effects of Short-Term Nutritional Stimulus Before and After the Luteolysis on Metabolic Status, Reproductive Hormones and Ovarian Activity in Goats
スポンサーリンク
概要
- 論文の詳細を見る
The effect of short-term nutritional supplementation on hormonal and ovarian dynamics was studied in goats. Cycling Shiba goats were divided randomly into maintenance (group M, n=4) and high-energy (group H, n=4) groups. After the detection of the ovulation (Day 0, 1st ovulation), group H received a high-energy diet providing 2.5 times of the maintenance energy requirement for 7 days from Day 7 to Day 13 and were administered 2 mg of prostaglandin F2 α (PGF2α) on Day 10 to induce luteal regression followed by the follicular phase. Follicular and luteal dynamics were monitored using ultrasonography daily or every other day, and blood samples were collected daily from Day 0 to the third ovulation (3rd ovulation) following the second ovulation (2nd ovulation) induced by PGF2α administration. Blood samples were also collected at 10-min intervals for 6 h on Day 9 and Day 11 for analysis of pulsatile LH secretion. The mean concentrations of glucose and insulin were significantly (P<0.05) higher in group H than in group M on Days 8, 9, 12, 13 and Days 8, 9 and 10, respectively. For both the 2nd and 3rd ovulations, no significant difference was detected in ovulation rate between groups M and H. On the other hand, the interpeak interval for wave-like patterns of FSH in group H was significantly (P<0.05) shorter than in group M during the period between the 1st and 2nd ovulations (4.3 ± 0.3 days vs. 6.5 ± 1.5 days). The mean LH pulse frequency in group H was significantly (P<0.05) greater than in group M on Day 11 (4.5 ± 0.6 pulses/6 h vs. 3.3 ± 0.5 pulses/6 h). The present study clearly demonstrated that short-term (7 days) nutritional supplementation promoted pulsatile LH and wave-like FSH secretions in cycling goats. However, no significant increase in ovarian performance was found under such endocrine and metabolic conditions.
- 日本繁殖生物学会の論文
- 2009-02-01
著者
-
KAMOMAE Hideo
Laboratory of Veterinary Reproduction, Tokyo University of Agriculture and Technology
-
Tanaka Tomomi
Laboratory Of Veterinary Reproduction Tokyo University Of Agriculture And Technology
-
Tanaka T
Department Of Veterinary Medicine Tokyo University Of Agriculture And Technology
-
Kamomae Hideo
Laboratory Of Veterinary Reproduction Tokyo University Of Agriculture And Technology
-
LU Wengeng
Laboratory of Veterinary Reproduction, Tokyo University of Agriculture and Technology
-
KUROIWA Takenobu
Laboratory of Veterinary Reproduction, Tokyo University of Agriculture and Technology
-
ZABULI Jahid
Laboratory of Veterinary Reproduction, Tokyo University of Agriculture and Technology
-
HARUNA Satoko
Laboratory of Veterinary Reproduction, Tokyo University of Agriculture and Technology
-
Lu Wengeng
Laboratory Of Veterinary Reproduction Tokyo University Of Agriculture And Technology
-
Zabuli Jahid
Laboratory Of Veterinary Reproduction Tokyo University Of Agriculture And Technology
-
Haruna Satoko
Laboratory Of Veterinary Reproduction Tokyo University Of Agriculture And Technology
-
Kuroiwa Takenobu
Laboratory Of Veterinary Reproduction Tokyo University Of Agriculture And Technology
関連論文
- Effects of Brief Exposure of Male Pheromone on Multiple-Unit Activity at Close Proximity to Kisspeptin Neurons in the Goat Arcuate Nucleus
- ウシの内側視索前野および視床下部内側底部におけるエストロジェンレセプターαの解析
- Ultrasonographic Uterine Changes and Vaginal Discharges Following Intrauterine Infusion of Liquid Paraffin in Cows
- The Effects of Short-Term Nutritional Stimulus Before and After the Luteolysis on Metabolic Status, Reproductive Hormones and Ovarian Activity in Goats
- Changes in the Peripheral Concentrations of Inhibin, Follicle-Stimulating Hormone, Luteinizing Hormone, Progesterone and Estradiol-17β During Turnover of Cystic Follicles in Dairy Cows with Spontaneous Follicular Cysts
- シバヤギの発情周期における超音波画像検査による卵巣の観察
- 人絨毛性性腺刺激ホルモン投与による牛における黄体形成および機能の増強
- 黒毛和種受胚牛における凍結胚移植前日および当日の血中プロジェステロンおよびエストロジェン濃度と受胎成績
- 牛の凍結胚移植における胚の発育ステージおよび品質と受胎成績
- Pregnancy Rate and Blood Progesterone Concentrations on the Previous Day and the Day of Frozen Embryo Transfer in Parous Recipient Cows of Japanese Black
- Hypophyseal Portal Blood Collection for Analysis of GnRH Neurosecretion in Shiba Goats
- 未経産牛における黄体初期からのプロジェステロン腟内徐放剤(PRID)処置による発情同期化と受胎成績
- 乳牛における子宮角超音波画像の解析
- The Relationship of Blood Progesterone and Estrogen Concentrations on the Day Before and the Day of Frozen-Thawed Embryo Transfer to Pregnancy Rate in Japanese Black Beef Cattle
- 卵巣静止牛および卵巣に嚢腫化構造物を有する乳牛に対するエストラジオールカプセル含有の腟内留置型プロジェステロン徐放剤(PRID)の治癒効果
- Estrus Synchronization and Conception Rate after a Progesterone Releasing Intravaginal Device (PRID) Treatment from the Early Luteal Phase in Heifers
- Changes of Ovarian Structures, Plasma LH, FSH, Progesterone and Estradiol-17β in a Cow with Ovarian Cysts Showing Spontaneous Recovery and Relapse
- Hypophyseal Portal Blood Collection for Analysis of GnRH Neurosecretion in Shiba Goats
- 牛の凍結胚移植における胚の発育ステージおよび品質と受胎成績
- Pregnancy Rate and Blood Progesterone Concentrations on the Previous Day and the Day of Frozen Embryo Transfer in Parous Recipient Cows of Japanese Black
- Long-term Recording of Hypothalamic GnRH Pulse Generator Activity during Programmed Administration of Progesterone and Estradiol in the Ovariectomized Goat
- Effects of Brief Exposure of Male Pheromone on Multiple-Unit Activity at Close Proximity to Kisspeptin Neurons in the Goat Arcuate Nucleus
- Microdialysis Measurement of In Vivo Gonadotropin-Releasing Hormone Secretion in the Goat
- Estradiol-induced GnRH Surge in Ovariectomized Goats
- Profiles of Ovarian Steroids, Luteinizing Hormone and Estrous Signs from Luteolysis to Ovulation in Lactating and Non-lactating Dairy Cows
- Exposure to Estrogen Mimicking the Level of Late Pregnancy Suppresses Estrus Subsequently Induced by Estrogen at the Level of the Follicular Phase in Ovariectomized Shiba Goats
- Changes in Plasma Progesterone Levels in the Caudal Vena Cava and the Jugular Vein and Luteinizing Hormone Secretion Pattern After Feeding in Lactating and Non-lactating Dairy Cows
- Differential Effects of Continuous Exposure to the Investigational Metastin/Kisspeptin Analog TAK-683 on Pulsatile and Surge Mode Secretion of Luteinizing Hormone in Ovariectomized Goats
- Nutritionally Induced Body Weight Loss and Ovarian Quiescence in Shiba Goats.
- Profiles of Ovarian Steroids, Luteinizing Hormone and Estrous Signs from Luteolysis to Ovulation in Lactating and Non-lactating Dairy Cows