动物营养学报 >

2013 , Vol. 25 >Issue 6: 1207 - 1218

DOI: https://doi.org/10.3969/j.issn.1006-267x.2013.06.012

禽营养 Poultry Nutrition

不同品种北京鸭消化器官及肠道形态发育规律的比较

  • 吴昊 ,
  • 曾秋凤 ,
  • 张克英 ,
  • 丁雪梅 ,
  • 白世平 ,
  • 罗玉衡
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  • 四川农业大学动物营养研究所,教育部动物抗病营养重点实验室,雅安 625014

收稿日期: 2012-12-17

  网络出版日期: 2013-05-15

基金资助

肉鸭饲料高效利用技术的示范与推广国家成果转化基金(2011GB2F000002);四川农业大学双支计划资助

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Comparison on Development Regularity of Digestive Organs and Intestinal Morphology of Beijing Ducks from Different Species

  • WU Hao ,
  • ZENG Qiufeng ,
  • ZHANG Keying ,
  • DING Xuemei ,
  • BAI Shiping ,
  • LUO Yuheng
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  • Institute of Animal Nutrition, Key Laboratory for Animal Disease-Resistance Nutrition of China Ministry of Education, Sichuan Agricultural University, Ya'an 625014, China

Received date: 2012-12-17

  Online published: 2013-05-15

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摘要

本研究旨在比较枫叶鸭与樱桃谷鸭消化器官及肠道形态的发育规律。选用健康1日龄枫叶鸭和樱桃谷鸭公雏各40只作为试验动物。每个品种为1个处理,每个处理5个重复,每个重复8只雏鸭。试验期为35 d,试验期间所有试鸭的饲粮和饲养管理一致。结果表明:1)2种肉鸭体重均随日龄的增加而显著增加(P<0.05),枫叶鸭7、14、21、28、35日龄体重均显著高于樱桃谷鸭(P<0.05);2)2种肉鸭消化器官的发育规律相似,小肠各段相对重量和相对长度及胰腺相对重量均在7日龄达到最大值,而肝脏、腺胃和肌胃相对重量均随日龄增加而逐渐降低,在1日龄时为最大值;3)枫叶鸭消化器官相对重量和小肠相对长度均极显著低于樱桃谷鸭(P<0.01);4)枫叶鸭十二指肠绒毛高度和绒毛高度与隐窝深度比值均显著高于樱桃谷鸭(P<0.05),而隐窝深度、肠壁厚度在2种肉鸭各肠段上均差异不显著(P>0.05)。由此可见,1～7日龄是枫叶鸭和樱桃谷鸭继胚胎期之后消化器官发育的关键时期,应保证充足的营养供给和良好的饲养管理;枫叶鸭具有较高的十二指肠绒毛高度和绒毛高度与隐窝深度比值,表明枫叶鸭具有较高的养分吸收能力。

关键词： 枫叶鸭; 樱桃谷鸭; 消化器官; 肠道形态

本文引用格式

吴昊 , 曾秋凤 , 张克英 , 丁雪梅 , 白世平 , 罗玉衡 . 不同品种北京鸭消化器官及肠道形态发育规律的比较[J]. 动物营养学报, 2013 , 25(6) : 1207 -1218 . DOI: 10.3969/j.issn.1006-267x.2013.06.012

Abstract

The objective of this study was to compare the development regularity of digestive organs and intestinal morphology between Maple Leaf ducks (MLD) and Cherry Valley ducks (CVD). Forty 1-day-old healthy Maple Leaf drakes and forty 1-day-old healthy Cherry Valley drakes were selected as the experimental animals. Each species as a treatment and each treatment had 5 replicates with 8 drakes per replicate. The experiment lasted for 35 days, and all experimental drakes were fed the same diet and accepted the same raising management during the experiment period. The results showed as follows: 1) the body weight (BW) of 2 species ducks was significantly increased with the days of age increasing (P<0.05), and the BW of MLD was significantly higher than that of CVD at 7, 14, 21, 28 and 35 days of age (P<0.05); 2) MLD and CVD's development regularity of digestive organs were similar, and relative weight and length of all intestinal segments, and relative weight of pancreas were the highest on 7 days of age, while relative weight of liver, proventriculus and gizzard on 1 day of age was gradually reduced with the days of age increasing; 3) the relative weight of digestive organs and the relative length of small intestine of MLD were significantly lower than those of CVD (P<0.01); 4) the villus height and the ratio of villus height to crypt depth of duodenum of MLD were significantly higher than those of CVD (P<0.05), while no significant differences were found in crypt depth and intestinal wall thickness of all intestinal segments between MLD and CVD (P>0.05). It is concluded that following the embryonic period, 1 to 7 days of age is a critical period for the development of digestive organs of MLD and CVD, and the ample nutrition supply and good raising management should be guaranteed; the higher villous height and ratio of villous height to crypt depth of MLD indicate that MLD can digest and absorb nutrients more effectively.

Key words： Maple Leaf duck; Cherry Valley duck; digestive organs; intestinal morphology

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