Feed Resources Development

Effects of Cassava Residues on Growth Performance, Slaughter Performance and Visceral Development of Geese at 22 to 49 Days of Age

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

Received date: 2015-01-04

  Online published: 2015-06-17

Abstract

This experiment was conducted to investigate the effects of dietary cassava residues supplemental level on growth performance, slaughter performance and visceral development of geese at 22 to 49 days of age. Three hundred 19-day-old healthy male geese with similar body weight were randomly allocated into 5 groups with 6 replicates in each group and 10 geese in each replicate. The control group was fed a basal diet, and experimental groups were fed experimental diets supplied with 5%, 10%, 15% and 20% cassava residues, respectively. The experiment lasted for 28 days.The results showed as follows: 1) compared with the control group, dietary supplied with cassava residues significantly improved the average daily feed intake (ADFI) at 22 to 28, 29 to 35 and 22 to 49 days of age and the average daily gain (ADG) at 22 to 28, 22 to 49 days of age (P<0.05). The ADG of geese at 22 to 49 days had a quadratic curve relationship with the supplemental level of cassava residues (P=0.017). When the ADG achieved highest, the supplemental level of cassava residues was 12.4%. 2) Compared with the control group, dietary supplied with cassava residues significantly reduced muscular stomach index and the relative weight of duodenum (P<0.05). 3) The reduce percentage of fodder costs of each groups had a relationship of quadratic curve (P<0.05). When the amount of cassava residues was 17.9%, the percentage was biggest. Therefore, the diets of adding appropriate cassava residues can stimulate the growth of geese and reduce the costs of fodder at 22 to 49 days of age. They also has a certain influence on the development of muscular stomach and duodenum. According to the average daily gain maximum limits and feed cost minimum limit, the suggested amount of cassava residues added to dietary is 12.4% to 17.9%.

Cite this article

ZHANG Fenfen, WANG Zhiyue, YANG Haiming, LI Yanpin, MA Yinpeng, XIE Yanjuan . Effects of Cassava Residues on Growth Performance, Slaughter Performance and Visceral Development of Geese at 22 to 49 Days of Age[J]. Chinese Journal of Animal Nutrition, 2015 , 27(6) : 1804 -1812 . DOI: 10.3969/j.issn.1006-267x.2015.06.017

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