A NOTE ON GROWTH-CURVES FOR THE OSTRICH (STRUTHIO-CAMELUS)

被引：29

作者：

DUPREEZ, JJ

JARVIS, MJF

CAPATOS, D

DEKOCK, J

机构：

[1] NATL PK & WILDLIFE MANAGEMENT,HARARE,ZIMBABWE

[2] DEPT AGR DEV,ELSENBURG 7607,SOUTH AFRICA

来源：

ANIMAL PRODUCTION | 1992年 / 54卷

关键词：

GROWTH CURVES; OSTRICHES; SOUTHERN AFRICA;

D O I：

10.1017/S0003356100020687

中图分类号：

S8 [畜牧、动物医学、狩猎、蚕、蜂];

学科分类号：

0905 ;

摘要：

The Gompertz equation was used to compute growth curves for three groups of ostriches (Struthio camelus), from Oudtshoorn in South Africa, the Namib desert in Namibia and from Zimbabwe. All were reared under typical intensive farm conditions with ad libitum feeding. There were no significant differences in mature mass between regions but the maximum daily weight gain for males occurred later (day 163) for Oudtshoorn birds, compared with day 121 for Namibian and day 92 for Zimbabwean. Oudtshoorn females reached maximum rate of gain on day 175 compared with day 115 for Namibian and day 114 for Zimbabwean. Comparisons might prove important when planning programmes for the genetic improvement of commercial flocks, but possible influences of food composition and environment should be investigated.

引用

页码：150 / 152

页数：3