This study investigated the effect of replacing dietary corn with broken rice (BR) on goose growth performance, body size and bare skin color. In total, 240 28-day-old healthy male Yangzhou goslings with similar body weight (BW) were randomly divided into five groups, with six replicates per group and eight geese per replicate. The control group was fed with a corn-soybean meal. The BR₂₅, BR₅₀, BR₇₅ and BR₁₀₀ groups had 25%, 50%, 75% and 100% of corn replaced with BR, respectively (corresponding to 15.95%, 31.88%, 47.63% and 62.92% of BR in the feed, respectively), each with constant metabolizable energy (ME) to crude protein (CP) ratio (ME/CP). At 28, 42, 56 and 70 d, BW and feed intake for each pen were measured. Blood was collected, and body size and bare skin color were evaluated at 70 d. The results showed that different BR replacement proportions had no effect on BW at 42, 56 or 70 d or on average daily feed intake (ADFI) or average daily gain (ADG) from 28 to 42 d (p > 0.05) but BR₅₀ and BR₇₅ decreased the feed/gain ratio (F/G) from 28 to 42 d (p < 0.05). From 42 to 56 d, BR₇₅ and BR₁₀₀ geese had a lower ADFI than the control geese (p < 0.05), and BR₇₅ and BR₁₀₀ geese had a lower F/G than the BR₂₅ geese (p < 0.05). Group BR₅₀, BR₇₅ and BR₁₀₀ geese had a lower ADFI from 56 to 70 d than the control geese (p < 0.05). From 28 to 70 d, BR₅₀, BR₇₅ and BR₁₀₀ groups had a lower ADFI (p < 0.05). Interestingly, the control and BR₂₅ groups had a higher flipper score than the BR₅₀, BR₇₅ and BR₁₀₀ groups (p < 0.05), and the control group had a higher flipper score than the BR₂₅ group (p < 0.05). All BR groups reduced the bill scoring (p < 0.05). Different BR replacement proportions did not negatively affect serum biochemical variable at 70 d (p > 0.05). Overall, under these conditions, BR can totally replace corn in goose diets, and we recommend 75% replacement of corn with BR from 28 to 70 d.

中文翻译：

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用碎米代替饮食玉米对鹅生长性能，体型和裸露肤色的影响。

这项研究调查了用碎米（BR）代替饮食玉米对鹅生长性能，体型和 裸露皮肤颜色的影响。总共将240头28日龄，体重相似的健康雄性扬州幼鹅随机分为五组，每组六只，每只鹅八只。对照组饲喂玉米豆粕。BR ₂₅，BR ₅₀，BR ₇₅和BR ₁₀₀各组分别有25％，50％，75％和100％的玉米被BR替代（分别对应饲料中BR的15.95％，31.88％，47.63％和62.92％），每个均具有恒定的代谢能（ME ）与粗蛋白（CP）的比例（ME / CP）。在28、42、56和70 d时，测量每只钢笔的体重和采食量。收集血液，并 在70天时评估其体型和裸露的皮肤颜色。结果表明，不同的BR替代比例对42、56或70 d的体重，或28到42 d的平均日采食量（ADFI）或平均日增重（ADG）均无影响（p> 0.05），但BR ₅₀和BR ₇₅将进/获得比（F / G）从28 d降低至42 d（p < 0.05）。从42到56 d，BR ₇₅和BR₁₀₀只鹅的ADFI值低于对照鹅（p < 0.05），BR ₇₅和BR ₁₀₀鹅的F / G值低于BR ₂₅鹅（p < 0.05）。BR ₅₀，BR ₇₅和BR _100组鹅的ADFI从56降低到70 d，低于对照组鹅（p < 0.05）。从28天到70天，BR ₅₀，BR ₇₅和BR ₁₀₀组的ADFI较低（p < 0.05）。有趣的是，对照组和BR ₂₅组的蛙鞋得分高于BR ₅₀，BR ₇₅和BR₁₀₀组（p < 0.05），对照组的鳍状肢评分高于BR ₂₅组（p < 0.05）。所有BR组均降低了账单评分（p < 0.05）。在70天时，不同的BR替代比例不会对血清生化变量产生负面影响（p> 0.05）。总体而言，在这些条件下，BR可以完全替代鹅日粮中的玉米，我们建议在28至70 d内用BR替代75％的玉米。