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奶山羊血浆催乳素(PRL)水平及其与产奶量的关系 被引量:1

Plasma Prolactin(PRL)Le7el and Relationship Between Plasma Prolactin Level and Milk Yield in Goats
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摘要 对40只奶山羊分娩前后血浆PRL水平测定结果表明,头胎羊血浆PRL水平于分娩前一天开始升高(n=20),经产羊血浆PRL水平于分娩前2~3天开始升高(n=20)但均在分娩之日达到峰值。分娩后第3天血浆PRL水平大幅度降低。经产羊分娩前后血浆PRL水平显著高于头胎羊(P<0.05)。头胎羊分娩之日和泌乳的54~64d血浆PRL水平与分娩后的产奶量无显著相关性(P>0.0);经产羊分娩之日和泌乳的40~66d血浆PRL水平与分娩后的产奶量呈显著相关性(P<0.05)。 The PRL levels in the serial samples were assayed in 40 goats before and after parturition .The results of which indicated that plasma PRL levels began to rise one day before parturition in the first-parous goats(n = 20). Plasma PRL levels in the multi-parous goats,however, began to rise 2*-3 days before parturition ( n = 20 ) . On the day of parturition, average plasma PRL levels are peaked in both first-parous and multi-parous goats. On the third day after parturition, plasma PRL levels in the multi-parous goats were significantly higher than those in the first-parous goats before, during and after parturition ( p<0.05 ). In the first-parous goats, no correlations were found between plasma PRL levels and milk yields on the day of parturition and during 54-63 days of early lactation stage ( P>0.05 ) . In multi-parous goats, significant correlations were found between plasma PRL levels and milk yields on the day of parturition and during 40-66 days of early lactation stage (p<0.05) .
出处 《西北农林科技大学学报(自然科学版)》 CSCD 1990年第2期42-47,共6页 Journal of Northwest A&F University(Natural Science Edition)
关键词 催乳素 产奶量 乳羊 放射免疫测定 Pro'actin, milk production, milk goat, radioimmunoassay
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  • 2CONNOR. E E, MEYER M J, LI R W. et al. Regulation of Gene Expression in the Bovine Mammary Gland by Ovarian Steroids [J]. J Dairy Sci, 2007, 90 (Suppl 1): 55-65.
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  • 7LYDON J P, DEMAYO F J, FUNK C R, et al: Mice Lacking Progesterone Receptor Exhibit Pleiotropic Reproductive Abnormalities[J]. Genes Dev, 1995, 9(18): 2266-2278.
  • 8SCHAMS D, KOHLENBEtLG S, AMSELGRUBER W, et al. Expression and Localisation of Oestrogen and Progesterone Receptors in the Bovine Mammary Gland during Develop- ment, Function and Involution [J]. J Endocrinol, 2003, 177 (2): 305- 317.
  • 9MALLEPELL S, KRUST A, CHAMBON P, et al. Paracrine Signaling Through the Epithelial Estrogen Receptor Alpha is Required for Proliferation and Morphogenesis in the Mammary Gland[J]. Proc Natl Acad Sci U S A, 2006, 103(7): 2196-2201.
  • 10BOCCHINFUSO W P, KORACH K S. Mammary Gland Development and Tumorigenesis in Estrogen Receptor Knockout Mice [J]. J Mammary Gland Biol Neoplasia, 1997, 2(4): 323-334.

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