Effects of Early Energy Restriction on Growth Performance and Internal Organ Development of Geese

CAO Yujuan; WANG Zhiyue; SUN Hongnuan; YANG Haiming

doi:10.3969/j.issn.1006-267x.2014.01.013

Chinese Journal of Animal Nutrition >

2014 , Vol. 26 >Issue 1: 90 - 97

DOI: https://doi.org/10.3969/j.issn.1006-267x.2014.01.013

Poultry Nutrition

Effects of Early Energy Restriction on Growth Performance and Internal Organ Development of Geese

CAO Yujuan ,
WANG Zhiyue ,
SUN Hongnuan ,
YANG Haiming

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College of Animal Science and Technology, Yangzhou University, Yangzhou 225009, China

Received date: 2013-07-22

Online published: 2013-12-24

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Abstract

This experiment was conducted to study the effects of early energy restriction on growth performance and internal organ development of geese. A total of 312 Yangzhou geese (19 days of age) with the similar body weight were randomly divided into four groups (control group, 5% energy restricted group, 10% energy restricted group and 15% energy restricted group, respectively), and each group had six replicates with thirteen geese per replicate. Geese in the 4 groups were fed the diets (metabolizable energy levels were 11.46, 10.88, 10.25 and 9.67 MJ/kg, respectively) with the same feed intake during restriction period (19 to 28 days of age), and geese in the 4 groups were fed the same basal diet with the same nutrient levels during compensation period (29 to 70 days of age). The results showed as follows: 1) early energy restriction significantly decreased the average daily gain (ADG) and significantly increased the ratio of feed to gain (F/G) of geese in restriction period(P<0.01). In compensation period, the ADG of geese in 5% energy restricted group was significantly higher than that in control group (P<0.01), and the F/G of geese was significantly lower than that in control group (P<0.05); there were no significant differences in ADG and F/G between control group and 10% energy restricted group (P>0.05). In the whole period (19 to 70 days of age), there were no significant differences in ADG, average daily feed intake (ADFI) and F/G between control group and 5% energy restricted group (P>0.05); there were no significant differences in ADG and ADFI between control group and 10% energy restricted group (P>0.05), but the F/G in 10% energy restricted group was significantly higher than that in control group (P<0.05). 2) Early energy restriction significantly decreased the liver weight (P<0.01), duodenum weight (P<0.05), jejunum weight (P<0.05), ileum weight (P<0.05), duodenum width (P<0.01) and ileum length (P<0.05) of geese. There were no significant differences in liver weight, duodenum weight, jejunum weight, ileum weight, duodenum width and ileum length of geese among control group, 5% energy restricted group and 10% energy restricted group in compensation period (P>0.05). It is concluded that the growth performance and internal organs of geese in 5% energy restricted group and 10% energy restricted group have a compensatory growth effect in compensation period, and geese in 5% energy restricted group get a better compensation growth effect.

Key words： early stage; energy restriction; geese; growth performance; internal organs

Cite this article

CAO Yujuan , WANG Zhiyue , SUN Hongnuan , YANG Haiming . Effects of Early Energy Restriction on Growth Performance and Internal Organ Development of Geese[J]. Chinese Journal of Animal Nutrition, 2014 , 26(1) : 90 -97 . DOI: 10.3969/j.issn.1006-267x.2014.01.013

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