BIOLOGICAL EFFICIENCY OF MEAT AND WOOL PRODUCTION OF 7 SHEEP GENOTYPES

被引：6
作者：
GREEFF, JC [1 ]
BOUWER, L [1 ]
HOFMEYR, JH [1 ]
机构：
[1] NOOITGEDACHT DEV CTR, ERMELO 2350, SOUTH AFRICA
来源：
ANIMAL SCIENCE | 1995年 / 61卷
关键词：
EFFICIENCY; MEAT PRODUCTION; SHEEP; WOOL PRODUCTION;
D O I：
10.1017/S1357729800013783
中图分类号：
S8 [畜牧、 动物医学、狩猎、蚕、蜂];
学科分类号：
0905 ;
摘要：
One hundred and thirty-two ewes of the Merino (M), Finn X Merino (FLXM), Border Leicester X Merino (BLXM), Bleu de Maine X Merino (BMXM), Texel X Merino (TXM), Cheviot X Merino (ChXM) and Merino Landsheep X Merino (MLXM) were evaluated for efficiency of lamb production. Individual food intakes of every ewe and also of her lamb(s) were determined over a complete production cycle. Efficiency of lamb production (kg lamb marketed at 35 kg live mass per kg food consumed by the ewe and her lamb(s)) indicated that the FLXM was the most efficient, followed by the TXM, Merino, MLXM, BLXM, ChXM and the BMXM was the least efficient. No significant differences (P < 0.05) were found between genotypes for efficiency of lamb production for ewes producing and rearing singletons until 35 kg live mass with ewe mass included as a covariate. Efficiency of wool production of the Merino was significantly (P < 0.001) higher than that of the other crosses. These results emphasize the importance of reproduction traits in improving efficiency of lamb production.
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页码：259 / 264
页数：6
相关论文
共 12 条
  • [1] BAKER RL, 1988, J AGR SCI FINLAND, V60, P455
  • [2] Brody S.B, 1945, BIOENERGETICS GROWTH
  • [3] ANIMAL SIZE AND EFFICIENCY - BASIC CONCEPTS
    DICKERSON, GE
    [J]. ANIMAL PRODUCTION, 1978, 27 (DEC): : 367 - 379
  • [4] GREEFF JC, 1990, S AFR J ANIM SCI, V20, P71
  • [5] HOFMEYR JH, 1982, P WORLD C SHEEP BEEF, V1, P157
  • [6] KLEEMAN DO, 1978, AUST J AGR RES, V29, P605
  • [7] Large R. V., 1973, BIOL EFFICIENCY PROT, P183
  • [8] BIOLOGICAL EFFICIENCY OF MEAT PRODUCTION IN SHEEP
    LARGE, RV
    [J]. ANIMAL PRODUCTION, 1970, 12 : 393 - &
  • [9] Snedecor G.W., 1980, STAT METHODS
  • [10] THOMPSON JM, 1986, 3RD P WORLD C GEN AP, V11, P271
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