Benyi Kow, Acheampong-Boateng Owoahene, Norris David
Department of Animal Science, University of Venda, Thohoyandou, South Africa.
Trop Anim Health Prod. 2011 Apr;43(4):871-6. doi: 10.1007/s11250-010-9775-z. Epub 2011 Feb 18.
The effects of 6, 10 and 14 days of skip-a-day feed removal during the starter and grower periods on the growth performance of Ross 308 and Hubbard broiler chickens were studied in a 49-day production period. Ross 308 was superior to Hubbard in weight gain, market weight and feed utilization but consumed more feed, deposited more abdominal fat and had a higher mortality rate. Overall, feed removal improved feed efficiency, had insignificant effects on abdominal fatness and mortality rate and reduced feed intake, weight gain and market weight. On each restricted-feeding regime, the birds gained as much weight as their fully fed counterparts during the period of resumed full feeding but were unable to compensate fully for the weight loss and were lighter at the end of the trial. It is suggested that for profitable broiler production under tropical conditions, Ross 308 and skip-a-day feed removal for less than 6 days from 7 to 17 days of age be considered.
在49天的生产期内，研究了罗斯308和哈伯德肉鸡在育雏期和生长期分别进行6天、10天和14天隔日停喂对其生长性能的影响。罗斯308在体重增加、上市体重和饲料利用率方面优于哈伯德，但采食更多饲料，腹部脂肪沉积更多，死亡率更高。总体而言，停喂提高了饲料效率，对腹部脂肪和死亡率影响不显著，降低了采食量、体重增加和上市体重。在每种限饲方案下，恢复全喂期间，鸡的体重增加量与全喂组相当，但无法完全弥补体重损失，试验结束时体重更轻。建议在热带条件下进行盈利性肉鸡生产时，考虑选用罗斯308，并在7至17日龄进行少于6天的隔日停喂。
