朗德鹅与籽鹅、莱籽鹅杂交的产肝性能观察

随机选择朗德鹅与籽鹅、莱籽鹅的杂交鹅雏各50只，待养至4月龄后达成年体重时，每组选择20只，进行为期3～4周的填饲试验。测量填饲肥肝平均重、平均耗料量和肝料比。结果表明：朗德×菜籽鹅的平均肝重为669．00g，极显著高于朗德×籽鹅（P〈0．01），较朗德×籽鹅、菜籽鹅与籽鹅分别提高了163．09g、289．00g和365．85g，即分别提高了32．24％、76．05％和120．68％；同时降低了单位肥肝的饲料消耗量，肝料比为1：33．71。因此，从肥肝重和耗料上综合评价得出，朗德×菜籽鹅组的填饲效果最佳，是生产肥肝最好的杂交组合。

Observation about the Fleshy Liver Production Performance of the Half-bred geese,Landaise geese and Zi geese,Landaise geese and LZ geese

50 Half-bred young geese （Landaise geese x LZ geese）, 50 Half-bred young geese （Landaise geese× Zi geese）, 50 Zi geese and 50 IZ geese were randomly selected to conduct a 3-4 weeks feeding trial from the beginning of 4 month old of a full grown geese in an attempt to determine the fleshy liver performance, average feed weight and feed/fleshy liver. The results showed that the average weight of fleshy liver of the half-bred geese of Landaise geese and LZ geese was 669.00g and was significant higher than the Half-bred geese between Landaise geese and Zi geese （P〈0.01）. Fleshy liver weight is higher than the group of the Half-bred geese between Landaise geese and Zi geese, Z geese group and Zi geese group 163.09g, 289.0% and 365.85g, respectively. The amount of average feed weight of unit fleshy liver was reduced, and the ratio of fleshy liver and feed weight was 1：33.71. Throughout estimation and analysis in the terms of fleshy liver and feed weight given identical feeding conditions, the profit from Half-bred Landaise geese ×LZ geese is highest. It was the best half-bred group of geese＇s.