The Growth of Genital Organ in Both Prepubertal and Postpubertal First-Cross Gilts under the Same Rearing Condition as Fattening Pigs.

• KAWANO Tateo

  Aichi Prefectural Agricultural Research Center

• SAKAKIBARA Tokuzo

  Aichi Prefectural Agricultural Research Center

Bibliographic Information

Other Title

• 肉豚と同様の飼養管理下における一代雑種雌豚の性成熟と生殖器の大きさ
• ニクブタ ト ドウヨウ ノ シヨウ カンリカ ニ オケル イチダイ ザッシュ

Abstract

One hundred and sixty-five Landrace×Large White gilts from 51 litters were randomly slaughtered between 152 and 260 days of age (liveweight of 82 to 137kg) to study the growth of genital organs before and after the attainment of puberty. They were housed in groups of six to ten per pen (about 1m² per pig) and had an ad libitum access to 70.1% total digestible nutrient and 12.7% digestible crude protein diet from approximately 25kg live weight to slaughter, which was almost the same rearing condition as fattening pigs in our experiment station. The rate of gilts already attained puberty was just twenty percent of all. The genital organs of these pigs were significantly larger (P<0.01) than those of prepubertal ones. In prepubertal gilts, the genital organs grew with advance of age (P<0.01), whereas those of postpubertal gilts grew according to increase in the body weight (P<0.05).

Journal

• Nihon Yoton Gakkaishi

  Nihon Yoton Gakkaishi 35 (1), 18-24, 1998

  The Japanese Society of Swine Science

Keywords

• gilt
• puberty
• genital organ
• ad libitum access

Details

• CRID: 1390001204709398400
• NII Article ID: 10008284931
• NII Book ID: AN10202971
• DOI: 10.5938/youton.35.18
• ISSN: 1881655X
• ISSN: 0913882X
• NDL BIB ID: 4425472
• Web Site: https://agriknowledge.affrc.go.jp/RN/2010571325
• Web Site: https://ndlsearch.ndl.go.jp/books/R000000004-I4425472
• Text Lang: ja
• Data Source:
  • JaLC
  • IRDB
  • NDL
  • Crossref
  • CiNii Articles
• Abstract License Flag: Disallowed