Feed Science and Technology

Effects of Bacillus Megaterium on Growth Performance, Slaughter Performance, Viscera Indices and Serum Biochemical Parameters of Geese from 1 to 70 Days of Age

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

Received date: 2015-09-28

  Online published: 2016-03-14

Abstract

The experiment was conducted to investigate the effects of Bacillus megaterium on growth performance, slaughter performance, visceral indices and serum biochemical parameters of geese from 1 to 70 days of age. Two hundred and sixty 1-day-old healthy male geese with similar body weight were randomly divided into 4 groups with 5 replicates in each group and 13 geese per replicate. The geese in control group (group Ⅰ) were fed a basal diet, and the others in experimental groups (groups Ⅱ, Ⅲ and Ⅳ) were fed basal diet supplemented with 20, 40 and 60 mg/kg Bacillus megaterium, respectively. The experiment lasted for 70 days. The results showed as follows: 1)the body weight of geese at 14, 56 days of age and 28, 42 days of age in group Ⅳ was significantly higher than that in control group (P<0.05 or P<0.01); the average daily gain of geese at 1 to 28 days of age in group Ⅳ was significantly higher than that in control group (P<0.05) and groupⅡ (P<0.01); the ratio of feed to gain in group Ⅳ was significantly lower than that in group Ⅱ (P<0.05) and group Ⅲ (P<0.01); the average daily feed intake of geese at 29 to 70 days of age in groups Ⅲ Ⅳ was significantly higher than that in control group (P<0.05). 2)The eviscerated rate and semi-eviscerated rate in group Ⅳ were significantly higher than those in control group (P<0.05), there were no significant difference in breast muscle rate, leg muscle rate and abdominal fat rate among all experimental groups (P>0.05). 3) The gizzard index and jejunum index in group Ⅳ were significantly higher than those in control group (P<0.05). 4) The serum high density lipoprotein cholesterol content in group Ⅱ was significantly higher than that in group Ⅳ (P<0.05); and the serum low density lipoprotein cholesterol content in group Ⅱ was significantly lower than that in control group (P<0.05). Therefore, the diets adding Bacillus megaterium can stimulate the growth performance of geese. They also have a certain influence on the eviscerated rate, semi-eviscerated rate, intestinal development,serum high density lipoprotein cholesterol content and serum low density lipoprotein cholesterol content, the effects of adding 60 mg/kg Bacillus megaterium in the diets on geese from 1 to 70 days of age are better.

Cite this article

CAI Zhongmei, WANG Zhiyue, YANG Haiming, DING Wenjun, JIN Shilei, ZHANG Yanyun . Effects of Bacillus Megaterium on Growth Performance, Slaughter Performance, Viscera Indices and Serum Biochemical Parameters of Geese from 1 to 70 Days of Age[J]. Chinese Journal of Animal Nutrition, 2016 , 28(3) : 788 -796 . DOI: 10.3969/j.issn.1006-267x.2016.03.019

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