Poultry Nutrition

Effects of Manganese on Growth Performance, Slaughter Performance, Tibia Development and Enzyme Activities of Wulong Geese Aged from 1 to 4 Weeks

  • WANG Baowei ,
  • ZHANG Xuejun ,
  • GE Wenhua ,
  • ZHANG Ming'ai ,
  • YUE Bin ,
  • SHI Xueping ,
  • WANG Xin ,
  • XU Chenchen
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  • Institute of High Quality Waterfowl, Qingdao Agricultural University, Qingdao 266109, China

Received date: 2013-10-15

  Online published: 2014-04-01

Abstract

This experiment was conducted to study the effects of manganese on growth performance, slaughter performance, tibia development and enzyme activities of Wulong geese aged from 1 to 4 weeks, and to find the appropriate supplemental level of manganese. A total of 360 one-day-old Wulong geese with similar average body weight were randomly divided into 6 groups with 6 replicates per group and 10 geese per replicate (half male and half female). Geese in the groups were fed the basal diet (manganese content was 20 mg/kg) supplemented with 0 (group Ⅰ), 30 (group Ⅱ), 60 (group Ⅲ), 90 (group Ⅳ), 120 (group Ⅴ) and 150 mg/kg (group Ⅵ) manganese, respectively. The experiment lasted for 4 weeks. The results showed as follows: 1) using unrelated comparative analysis method, when the dietary manganese level was 117.74 mg/kg, the average daily gain reached the highest, and when the dietary manganese level was 105.71 mg/kg, the ratio of feed to gain reached the lowest. 2) The dressed percentage, percentage of half-eviscerated yield, percentage of eviscerated yield and percentage of leg muscle in groups Ⅳ and Ⅴ were significantly higher than those in group Ⅰ (P<0.05 or P<0.01), and the percentage of abdominal fat in group Ⅴ was significantly lower than that in group Ⅰ (P<0.05). 3) The bone mineral density, bone strength, ash and calcium contents in groups Ⅳ and Ⅴ were significantly higher than those in group Ⅰ (P<0.05 or P<0.01). 4) The serum manganese superoxide dismutase activity in groups Ⅳ and Ⅴ was significantly higher than that in group Ⅰ (P<0.05 or P<0.01), and the activities of malic dehydrogenase and lipoproteinesterase in liver in groups Ⅳ and Ⅴ were significantly lower than those in group Ⅰ (P<0.05 or P<0.01). In conclusion, dietary manganese at appropriate supplemental level can promote growth performance, slaughter performance and tibia development of Wulong geese aged from 1 to 4 weeks, and the optimal supplemental level of manganese is 105.71 to 117.74 mg/kg.

Cite this article

WANG Baowei , ZHANG Xuejun , GE Wenhua , ZHANG Ming'ai , YUE Bin , SHI Xueping , WANG Xin , XU Chenchen . Effects of Manganese on Growth Performance, Slaughter Performance, Tibia Development and Enzyme Activities of Wulong Geese Aged from 1 to 4 Weeks[J]. Chinese Journal of Animal Nutrition, 2014 , 26(4) : 877 -884 . DOI: 10.3969/j.issn.1006-267x.2014.04.007

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