喷淋对仔鹅产绒性能和绒羽理化性质的影响

Effects of Spraying on Cashmere Performance and Down Physicochemical Properties in Goslings

本试验旨在探索喷淋对仔鹅产绒性能及绒羽理化性质的影响。选取300只健康、体重均匀的5周龄扬州公鹅,随机分成1个对照组和4个试验组,每组5个重复,每个重复12只鹅。对照组不喷淋,试验Ⅰ组每天喷淋3次,每次先喷淋5min间歇10min后再次喷淋5min;试验Ⅱ组每天喷淋3次,每次持续喷淋10min;试验Ⅲ组每天喷淋3次,每次先喷淋15min间歇10min后再次喷淋15min;试验Ⅳ组每天喷淋3次,每次持续喷淋30min。结果表明,(1)70日龄时,试验Ⅲ组和Ⅳ组鹅胸部、腹部、背部和颈部的千朵重和绒朵长度极显著高于其他3组(P<0.01),试验Ⅰ组和Ⅱ组鹅胸部、腹部、背部和颈部的千朵重和绒朵长度又极显著高于对照组(P<0.01)。5个处理组鹅相同部位之间的绒小枝细度均没有显著性差异(P>0.05)。试验Ⅲ组和Ⅳ组鹅的产绒率最高,其次为试验Ⅰ组和Ⅱ组,对照组最差。另外,就单个组来看,70日龄扬州鹅胸腹部的千朵重、绒朵长度及绒小枝细度均极显著高于其他3个部位(P<0.01)。(2)与对照组相比,4个处理组显著(P<0.05)或极显著(P<0.01)提高了70日龄扬州鹅绒羽的含脂率、透明度和蓬松度。试验Ⅲ组和Ⅳ组的耗氧指数最低,极显著低于试验Ⅰ组和Ⅱ组(P<0.01),试验Ⅰ组和Ⅱ组的耗氧指数又极显著低于对照组(P<0.01)。喷淋时间相等,结合梳羽间歇实施喷淋的试验Ⅰ组的透明度、蓬松度及耗氧指数均显著高于试验Ⅱ组(P<0.05)。因此,喷淋可显著提高仔鹅的产绒性能及绒羽理化性质,从而改善仔鹅绒羽的品质。

The objective of this study was to investigate effect of spraying on cashmere performance and physicochemical properties in goslings.A total of 300 5-week-old healthy male Yangzhou geese with similar body weight were randomly allocated into 5groups with 5replicates per group and 12geese per replicate.Five groups including the control group,groupⅠ,groupⅡ,groupⅢand groupⅣ.It was no spraying in control group,spraying method in groupⅠ,with 3times a day,each time spraying 5minutes first,10minutes intermission later,re-spray 5minutes,groupⅡ was 3 times a day too,spraying method was to spray continuous 10minutes at a time,groupⅢ was 3 times a day,each time spraying 15minutes first,10minutes intermission later,re-spray 15minutes,groupⅣ was 3times a day too,spraying method was to spray continuous 30minutes at a time.The experiment lasted for 6weeks.The results showed that(1)GroupⅢ and groupⅣ were extremely significant higher than the other groups in kilo-down weight and down length which in the chest,abdomen,back and neck of Yangzhou geese on 70-day-old(P<0.01),groupⅠ andgroupⅡ were extremely significant higher than the control group in kilo-down weight and down length which in the chest,abdomen,back and neck of Yangzhou geese on 70-day-old(P<0.01). There was no significant difference in down twig diameter which in the same place among all groups.GroupⅢand groupⅣhad the highest down percentage,groupⅠand groupⅡfollowed,the control group was the worst.In addition,looking one of all the groups,the kilo-down weight, down length and down twig diameter of chest and abdomen of Yangzhou geese on 70-day-old were extremely significant higher than that of other positions(P<0.01).(2)Compared with the control group,the other groups significantly(P<0.05)or extreme significantly(P<0.01)increased the fat content,transparency and filling power of down in Yangzhou geese on 70-day-old.GroupⅢ and groupⅣ had the lowest oxygen consumption index,which were extremely significant lower than the other groups(P<0.01),groupⅠand groupⅡ were extremely significant lower than that of control group(P<0.01).Spraying with the same time,groupⅠ significantly increased the transparency,filling power and oxygen consumption index than that of groupⅡ(P<0.05).So, spraying can significantly increase cashmere performance and physicochemical properties of goslings,thereby improve the quality of gosling down.