体重90kg時の雌豚の生殖器の大きさと体型,産肉性との関係およびその遺伝  [in Japanese] Relationship of Female Genital Organ Measurements to Body Size, Meat Performance and Heredity at 90kg Live Weight in Swine  [in Japanese]

Access this Article

Search this Article

Author(s)

Abstract

大ヨークシャー雌豚315頭を用い, 体重90kg時の生殖器の大きさ (長さおよび重量) と体型, 産肉性との関係およびその遺伝について分析した。生殖器の大きさは, 総重量197.5g, 外陰部面積9.8cm<sup>2</sup>, 膣前庭長7.6cm, 同重量41.1g, 膣長6.0cm, 同重量22.8g, 子宮頚長12.2cm, 同重量45.8g, 子宮角 (左右平均) 長45.2cm, 同重量30.9g, 卵管 (左右平均) 長17.7cm, 同重量2.21g, 卵巣 (左右平均) 重量2.77gであった。いずれも個体による変動が大きく, 特に重量面でその傾向が強かった。卵管長, 同重量および卵巣重量において, 左右間に有意差が認められ, いずれも左側が大きい傾向にあった (各P<0.01, P<0.05, P<0.01)。生殖器総重量は, 体高の高い豚 (P<0.05) ほど, また発育の遅い豚 (P<0.01) ほど大きい傾向にあった。外陰部の大きな豚は内部生殖器も大きい傾向にあった。生殖器各部位の遺伝率推定値は, 総重量0.716, 外陰部面積0.563, 膣前庭長0.269, 同重量0.692, 膣長0.350, 同重量0.829, 子宮頚長0.402, 同重量0.632, 子宮角長0.665, 同重量0.596, 卵管長0.493, 同重量0.492, 卵巣重量0.323と, おおむね中程度以上の値を示した。

A total of 315 Large White gilts were slaughtered at 90kg live weight to study the relationship of the size of female genital organ to body size, meat performance and heredity. The average total weight of the organs was 197.5g. The average length and weight were 7.6cm and 41.1g for vaginal vestibule, 6.0cm and 22.8g for vagina, 12.2cm and 45.8g for uterine cervix, 45.2cm and 30.9g for uterine horn (mean of the Left and Right sides), 17.7cm and 2.21g for oviduct (mean of L and R). The average weight of ovaries was 2.77g (mean of L and R) and the average area of external genitalia was 9.8cm<sup>2</sup>. These characteristics had large variations in individuals, especially in the weights. The left organs were significantly greater than the right ones in the length of oviduct (P<0.01), the weight of oviduct (P<0.05) and the weight of ovary (P<0.01). The pigs which had large body hight, large external genitalia and small daily gain had larger genital organs. Heritability estimates were 0.716 for the whole weight of the organs, 0.563 for the area of external genitalia, 0.269 (length) and 0.692 (weight) for vaginal vestibule, 0.350 (length) and 0.829 (weight) for vagina, 0.402 (length) and 0.632 (weight) for uterine cervix, 0.665 (length) and 0.596 (weight) for uterine horn, 0.493 (length) and 0.492 (weight) for oviduct and 0.323 for the weight of ovary by full-sib analysis.

Journal

  • Nihon Yoton Gakkaishi

    Nihon Yoton Gakkaishi 34(3), 99-105, 1997-09-30

    The Japanese Society of Swine Science

References:  15

Cited by:  2

Codes

  • NII Article ID (NAID)
    10008284722
  • NII NACSIS-CAT ID (NCID)
    AN10202971
  • Text Lang
    JPN
  • Article Type
    Journal Article
  • ISSN
    0913882X
  • NDL Article ID
    4305613
  • NDL Source Classification
    ZR22(科学技術--農林水産--畜産)
  • NDL Call No.
    Z18-1082
  • Data Source
    CJP  CJPref  NDL  J-STAGE  JASI 
Page Top