黒毛和種去勢牛における1日当たりの増体量別の肥育効率および血液成分値  [in Japanese] Production Efficiency and Values of Blood Components by Daily Growth in Castrated Japanese Black Cattle  [in Japanese]

Access this Article

Author(s)

Abstract

間接検定成績の1日当り増体量(DG)に基づいて、一肥育農家の黒毛和種去勢牛を低増体群、中間群、増体群と区分し、枝肉販売成績と肥育ステージ別の血液成分値を比較した。DG別の枝肉販売成績では、増体群が肉質および枝肉価格ともに好成績を示した。血液成分値は肥育ステージ別に大きな変動を示した。ビタミンAは、増体群では低増体群に比べてステージ4(22~25カ月齢)と5(26~30カ月齢)で有意な低値を示した。総コレステロールとリン脂質は、増体群では低増体群や中間群に比べて、ステージ3(18~21カ月齢)から4(22~25カ月齢)にかけて高値傾向を示した。以上のように、DG別や肥育ステージ別に血液成分値に差が認められたことから、牛によって発育や肉質形成速度が異なることが示唆された。DG別に、牛を分類することによって、牛本来の特性に基づいた飼養管理が可能になり、肥育効率が高くなると思われた。

Daily growth (DG) records and carcass sales figures of castrated Japanese Black cattle were compared with their blood component values at every growth stage. Cattle were divided into slow, average, and rapid growth groups. As to sales figures for carcass by DG, the rapid growth group attained the best results in both weight gain and price. The blood component values fluctuated significantly depending on the growth stage. The value of vitamin A in rapid growth group was significantly lower in stages 4 (22-25 months of age) and 5 (26-30 months age) compared to that in slow growth group. The level of total cholesterol and phospholipids in rapid growth group was significantly higher in stages 3 (18-21 months age) and 4 (22-25 months age) compared to slow and average growth groups. Since blood component values varied depending on DG or growth stage it was suggested that the weight gain varied by animal. Therefore we concluded production efficiencybecomes possible can be improved by classifying the natural characteristics of each animal cattle.

Journal

  • Japanese Journal of Veterinary Clinics

    Japanese Journal of Veterinary Clinics 24(1), 3-8, 2001-07-20

    Japanese Society of Large Animal Clinics / Large Animal Clinic Research Association

References:  14

Codes

  • NII Article ID (NAID)
    10008024601
  • NII NACSIS-CAT ID (NCID)
    AA1163152X
  • Text Lang
    JPN
  • Article Type
    ART
  • ISSN
    09167579
  • NDL Article ID
    5848516
  • NDL Source Classification
    ZR22(科学技術--農林水産--畜産)
  • NDL Call No.
    Z18-2162
  • Data Source
    CJP  NDL  J-STAGE  JASI 
Page Top