苜蓿草颗粒和鲜草部分替代全价饲料对临武鸭饲喂效果的比较研究

doi:10.16431/j.cnki.1671-7236.2025.03.018

Abstract

Abstract: 【Objective】 The aim of this study was to compare the effects of granular alfalfa and fresh pasture partially replacing complete feed on growth,slaughter performance,organ index and meat quality of Linwu ducks,and to provide theoretical basis for the scientific application of alfalfa granules in duck feed.【Method】 600 Linwu ducks consists of half males and half females with similar body weight at 39 days of age were randomly divided into groups Ⅰ,Ⅱ and Ⅲ，with 10 replicates per group and 20 ducks per replicate.The ducks in groups Ⅰ,Ⅱ and Ⅲ were fed complete feed,80% complete feed+20% granular alfalfa and complete feed + fresh pasture,respectively.The experiment period was 30 days.At the age of 70 days,1 male and 1 female ducks close to the average body weight were selected from each replicate for slaughter performance measurement.The heart,liver,muscle stomach,glandular stomach and spleen were collected to measure organ indexs,and the left breast muscle was collected to detect meat quality.【Result】 ①There were no significant difference on final weight and daily gain of ducks among the three groups (P＞0.05),and the average daily feed consumption and F/G of ducks in group Ⅱ was significantly lower than that of the other two groups (P＜0.05).②There were no significant differences in slaughtering rate,all evisceration rate,abdominal fat percentage,sebaceous fat percentage and leg muscle percentage of ducks among the three groups (P＞0.05).The breast muscle rate of ducks in group Ⅱ was the highest and significantly higher than that in group Ⅰ (P＜0.05).③Except gizzard index,there were no significant differences on other organ index of ducks among all groups (P＞0.05).The gizzard index of ducks in group Ⅱ was significantly higher than that of groups Ⅰ and Ⅲ (P＜0.05).④The yellowness value (b^*) of breast muscle of ducks in group Ⅱ was significantly higher than that in groups Ⅰ and Ⅲ (P＜0.05).The post-cooking shear force of breast muscle of ducks in group Ⅰ was significantly higher than that in group Ⅱ (P＜0.05),but had no significant difference with that in group Ⅲ (P＞0.05).The cooking loss rate of ducks in groups Ⅱ and Ⅲ were significantly lower than that of group Ⅰ(P＜0.05).The pH_{45 min} of breast muscle of ducks in group Ⅰ was significantly lower than that in groups Ⅱ and Ⅲ (P＜0.05).【Conclusion】 The granular alfalfa and fresh pasture partially replacing complete feed had no negative effects on growth and slaughter performance of Linwu ducks aged 39 to 70 days,and substitution of 20% complete feed with granular alfalfa effectively reduced feed cost and improved meat quality.

Key words: granular alfalfa; Linwu ducks; growth performance; meat quality

CLC Number:

S834

HUANG Xuan, MA Yuyong, LIU Yang, LI Chuang, JIANG Guitao, ZHANG Xu, DENG Ping, WAN Weican, HE Xu, DAI Qiuzhong. Feeding Effects of Granular Alfalfa and Fresh Pasture Partially Replacing Complete Feed on Linwu Ducks[J]. China Animal Husbandry and Veterinary Medicine, 2025, 52(3): 1159-1165.

References

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Feeding Effects of Granular Alfalfa and Fresh Pasture Partially Replacing Complete Feed on Linwu Ducks

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