墊料重複使用對白肉雞產能與墊料量之影響

The effect of litter reuse on the production efficiency of broilers and the quantity of the litter

徐王鮮(Wang-Hsien Hsu) ； 蔡銘祝(Ming-Chu Tsai) ； 程梅萍(Mei-Ping Cheng) ； 蕭庭訓(Ting-Hsun Hsiao)

《畜產研究》 53卷4期 (2020/12) Pp. 229-236

https://doi.org/10.6991/JTLR.202012_53(4).0004

摘要

本研究旨在評估墊料重複使用對白肉雞生產效能與墊料量之影響，試驗利用平飼白肉雞飼養場之飼養管理紀錄表，記錄每批入雛日期、雞舍入雛數、每日死亡數、飼料用量、出雞日期、出售隻數、出售總重及墊料重複使用飼養批次等資料，評估養雞場生產效能，並調查白肉雞以逐批飼養與重複飼養之墊料產量。結果顯示，墊料重複使用於白肉雞飼養1－5批次，平均出售日齡、出售體重、飼料換肉率（Feed conversion ratio, FCR）、育成率及生產指數，分別介於35.3－36.0日、2.08－2.15kg、1.48－1.50、95.5－97.6%及382－394之間，批次間均無差異顯著性。各批次之雞隻死亡率皆以1週齡時高於2、3、4、5及6週齡（P＜0.05），且死亡率在批次與週齡間無顯著之交感效應。每隻雞產生之墊料重量隨著重複使用批次增加而有降低趨勢，逐批清理墊料者其平均重量為1.08 kg／隻，而重複飼養2、3、4及5批次之平均墊料量則分別介於0.78－0.63 kg／隻之間。綜上所示，平飼白肉雞場墊料重複使用5批次尚不影響養雞場之生產效能，且可降低墊料量，可作為養雞業者參考之飼養模式之一。

關鍵字

白肉雞 ； 雞糞墊料 ； 重複使用 ； 生產效能

並列摘要

The aim of this study was to evaluate the effect of litter reuse on the production efficiency of broilers and the quantity of the litter. The recording tables of management, including the date of chicks arrival, chick numbers of each batch, daily death numbers, feed consumption, market date and numbers, total weight of catching, and the reuse times of litter, which were applied to assess the production performance of a broiler farm and to investigate the litter amounts of single batch and reused broiler litter. The results showed the average market days, the average market weight, the average feed conversion rates, average survival rates and production index were 35.3 ~ 36.0 days, 2.08 ~ 2.15 kg, 1.48 ~ 1.50, 95.5 ~ 97.6% and 382 ~ 394, respectively, for the 1st to 5th batches of broiler chickens raised on the reused litter. The results showed no difference among batches. The average death numbers and mortality rates of the first week were significantly higher than those of other week ages (P ＜ 0.05), and there was no interaction effect between the batch and week age. The results of investigation on broiler litter yield showed the litter weight per bird sold decreasing as the batch number increased. The average litter weight was cleaned after single batch reached 1.08 kg/bird, while those after two to five batches reached 0.78 ~ 0.63 kg/bird. The results of this study showed that raising 5 batches broiler chickens on reused litter did not affect their performance and could reduce the amount of waste litter. The recycling of litter as bedding material can be applied as a management model for the poultry industry's reference.

並列關鍵字

Broiler ； Litter ； Reuse ； Performance