日粮ADF水平对断奶至3月龄獭兔生长性能、氮代谢、纤维素酶活和盲肠发酵的影响

doi:10.11843/j.issn.0366-6964.2013.09.012

畜牧兽医学报 ›› 2013, Vol. 44 ›› Issue (9): 1417-1424.doi: 10.11843/j.issn.0366-6964.2013.09.012

日粮ADF水平对断奶至3月龄獭兔生长性能、氮代谢、纤维素酶活和盲肠发酵的影响

荆常亮，李福昌^*，王雪鹏，王春阳

（山东农业大学动物科技学院，泰安 271018）

收稿日期:2012-12-20 出版日期:2013-09-23 发布日期:2013-09-23
通讯作者: 李福昌，E-mail：chlf@sdau.edu.cn
作者简介:荆常亮（1987-），男，山东淄博人，硕士生，主要从事动物营养和家兔生产研究，Tel：0538-8249222-8319，E-mail：jingchangliang2008@163.com
基金资助:
现代农业产业技术体系建设专项（CARS-44-B-1）;国家公益性行业（农业）科研专项（200903006）

Effects of Dietary ADF Levels on Growth Performance，Nitrogen Metabolism, Cellulase Activity and Caecum Fermentation of Rex Rabbits from Weaning to 3-month-old

JING Chang-liang, LI Fu-chang^*, WANG Xue-peng, WANG Chun-yang

(College of Animal Science and Technology, Shandong Agricultural University, Tai’an 271018, China)

Received:2012-12-20 Online:2013-09-23 Published:2013-09-23

摘要/Abstract

摘要：

本研究旨在研究日粮不同ADF水平对断奶至3月龄獭兔生长性能、氮代谢、纤维素酶活和盲肠发酵的影响。本试验采用单因子完全随机试验设计，日粮设5个ADF水平：15%（A组）、17%（B组）、19%（C组）、21%（D组）、23%（E组），选用35日龄断奶獭兔200只（体重相近，公母各半），随机分成5组，每组40个重复，预试期7 d，正试期53 d。通过动物饲养试验、消化代谢试验、屠宰试验对獭兔的相关指标进行研究。结果表明，在初始体重无显著差异的情况下，日粮ADF水平对断奶至3月龄獭兔采食量(ADI)和料重比（F/G）有显著影响（P＜0.05）；日粮ADF水平极显著或显著影响食入氮（IN）（P＜0.01）和粪氮(FN)（P＜0.05），其中C 组氮的利用率（RN/IN）和氮的生物利用率（RN/DN）最高；日粮ADF水平对断奶至3月龄獭兔盲肠氨氮浓度和丁酸浓度影响极显著（P＜0.01）；日粮ADF水平对断奶至3月龄獭兔盲肠内木聚糖酶活和水杨苷酶活影响极显著（P＜0.01）。本试验结果表明，断奶至3月龄獭兔的适宜日粮ADF水平为19%。

Abstract:

The experiment was conducted to investigate the effects of ADF levels on growth performance, nitrogen metabolism, cellulase activity and caecum fermentation of Rex Rabbits from weaning to 3-month-old. Using a one-factor completely randomize design, two hundred weaned Rex Rabbits with similar body weight were randomly divided into 5 treatments(40 replicates per treatment,1 rabbit per replicate):feeding diets containing ADF 15%, 17%, 19%, 21%, 23%, respectively. The trial lasted for 7 days for adaptation, and 53 days for test, respectively. By animal breeding experiment, digestibility experiment and slaughtering experiment, indexes were determined. In the case of the initial body weight had no significant difference, the results showed that the levels of dietary ADF significantly affected the feed intake（ADI）and feed gain ratio(F/G) (P＜0.05); the dietary ADF levels significantly affected the nitrogen intake(IN) (P＜0.01) and fecal nitrogen（FN）(P＜0.05); the nitrogen utilization（RN/IN）and the bioavailability of nitrogen（RN/DN）reached to the maximum in C group; the levels of dietary ADF significantly affected NH3-N concentration and butyrate acid concentration (P＜0.01) in caecum;The activity of xylanase and salicin were significantly increased as the levels of ADF increase (P＜0.01). In conclusion, the suitable ADF levels was 19% for the Rex Rabbits from weaning to 3-month-old.

中图分类号:

荆常亮，李福昌，王雪鹏，王春阳. 日粮ADF水平对断奶至3月龄獭兔生长性能、氮代谢、纤维素酶活和盲肠发酵的影响[J]. 畜牧兽医学报, 2013, 44(9): 1417-1424.

JING Chang-liang, LI Fu-chang, WANG Xue-peng, WANG Chun-yang. Effects of Dietary ADF Levels on Growth Performance，Nitrogen Metabolism, Cellulase Activity and Caecum Fermentation of Rex Rabbits from Weaning to 3-month-old[J]. ACTA VETERINARIA ET ZOOTECHNICA SINICA, 2013, 44(9): 1417-1424.

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日粮ADF水平对断奶至3月龄獭兔生长性能、氮代谢、纤维素酶活和盲肠发酵的影响

Effects of Dietary ADF Levels on Growth Performance，Nitrogen Metabolism, Cellulase Activity and Caecum Fermentation of Rex Rabbits from Weaning to 3-month-old

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