作者: J.D. May , B.D. Lott
DOI: 10.1093/PS/80.5.581
关键词:
摘要: The effects of environmental temperature on growth and feed:gain were studied in three trials each for male female broilers. Chicks reared a common environment to 21 d age. At d, they randomly allocated 10 chambers. Each chamber was maintained at constant temperature; the chambers ranged from 12 30 C two-degree increments. dewpoint 18 C, except that relative humidity not permitted exceed 82.9%. Body weight determined d. Weight gain 28, 35, 42, 49 data analyzed statistically, regression equations obtained sex. Equations based body temperature, plotted as grams gained per bird day. Feed:gain increased with increasing weight. resulted most favorable decreased These results support lower rearing temperatures optimum by large broilers than those other reports literature.