Effects of Iron on Growth Performance, Slaughter Performance, Meat Quality and Nutrient Utilization of Wulong Geese Aged from 5 to 16 Weeks

MA Chuanxing; WANG Baowei; GE Wenhua; ZHANG Ming; KONG Min; ZHANG Xiao; SUI Li

doi:10.3969/j.issn.1006-267x.2015.11.013

2015 , Vol. 27 >Issue 11: 3420 - 3428

DOI: https://doi.org/10.3969/j.issn.1006-267x.2015.11.013

POULTRY NUTRITION

Effects of Iron on Growth Performance, Slaughter Performance, Meat Quality and Nutrient Utilization of Wulong Geese Aged from 5 to 16 Weeks

MA Chuanxing ,
WANG Baowei ,
GE Wenhua ,
ZHANG Ming ,
KONG Min ,
ZHANG Xiao ,
SUI Li

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Institute of High Quality Waterfowl, Qingdao Agricultural University, Institute of High Quality Waterfowl Qingdao Agricultural University, Nutrition and Feed Laboratory of China Agriculture Research System, Qingdao 266109, China

Received date: 2015-05-06

Online published: 2015-11-21

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Abstract

This experiment was conducted to study the effects of iron on growth performance, slaughter performance, meat quality and nutrient utilization of Wulong geese aged from 5 to 16 weeks, and to find the appropriate supplemental level of iron. A total of 360 five-week-old Wulong geese were randomly divided into 6 groups with 6 replicates per group and 10 geese per replicate. Geese in the group Ⅰ (control group) were fed a basal diet, and geese in the experimental groups (groups Ⅱ to Ⅵ) were fed the basal diet supplemented with 20, 40, 60, 80 and 100 mg/kg iron, respectively. The experiment lasted for 12 weeks. The results showed as follows:1) dietary appropriate iron level could promote the growth of Wulong geese, added 40 to 60 mg/kg iron could significantly increase the body weight and average daily gain (P<0.01), significantly decreased feed to weight ratio (P<0.01); when dietary iron level was 62.5 mg/kg, the average daily gain reached the highest. 2) When dietary iron supplemental level was 40 to 60 mg/kg, the dressed percentage and percentage of half-eviscerated yield were significantly higher than those of control group (P<0.05). Dietary iron supplemental level had no significant effect on percentage of abdominal, percentage of breast muscle and percentage of leg muscle (P>0.05). 3) Dietary iron supplemental level had no significant effect meat color (P>0.05); had increased trend on shearing force, water-holding capacity, water loss rate and pH (P>0.05). 4) Dietary appropriate iron level could reduce fecal nitrogen, increased nitrogen deposition, thereby increasing the conversion efficiency of protein, also could significantly increase the utilization of crude fat, crude fiber, neutral detergent fiber, acid detergent fiber (P<0.05 or P<0.01). In conclusion, Dietary appropriate iron level has significant effect on growth performance, slaughter performance, meat quality and nutrient utilization. The optimal supplemental level of iron of geese aged from 5 to 16 weeks is 52.7 to 62.5 mg/kg.

Key words： iron; geese; growth performance; slaughter performance; meat quality; nutrient utilization

Cite this article

MA Chuanxing , WANG Baowei , GE Wenhua , ZHANG Ming , KONG Min , ZHANG Xiao , SUI Li . Effects of Iron on Growth Performance, Slaughter Performance, Meat Quality and Nutrient Utilization of Wulong Geese Aged from 5 to 16 Weeks[J]. Chinese Journal of Animal Nutrition, 2015 , 27(11) : 3420 -3428 . DOI: 10.3969/j.issn.1006-267x.2015.11.013

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