CAJ | 학술논문

本试验旨在研究不同纤维源饲粮对1~4周龄扬州鹅生长性能及胃肠道发育的影响。选用392只刚出壳的扬州鹅公鹅,2 h时屠宰14只测定消化道重量和肠道长度,剩余试验鹅随机分为2组,分别饲喂苜蓿草粉饲粮和稻壳粉饲粮,每组7个重复,每个重复27只。在试验鹅的1、3、5、7、14、28日龄,从每个重复随机取2只试验鹅进行屠宰,测定胃肠道重量和肠道长度,并观察14、28日龄试验鹅的十二指肠、空肠、回肠组织形态。结果表明：饲粮纤维源对1~4周龄扬州鹅平均日增重和料重比无显著影响(P>0.05)。除7日龄空肠长度、14日龄十二指肠长度与盲肠重量以及28日龄盲肠长度差异显著(P<0.05)外,饲粮纤维源对各日龄胃肠道重量及肠道长度均无显著影响(P>0.05)。苜蓿草粉饲粮显著增加了14日龄肠道绒毛高度及十二指肠固有层厚度(P<0.05),饲粮纤维源对14日龄空肠和回肠的绒毛高度及各肠段隐窝深度无显著影响(P>0.05),对28日龄各肠段固有层厚度、绒毛高度及隐窝深度无显著影响(P >0.05)。由此可见,饲粮纤维源不影响1~4周龄扬州鹅生长性能,但对胃肠道发育有一定的影响,在生产实践中利用稻壳替代苜蓿草作为饲粮主要纤维源是可行的。
본시험지재연구불동섬유원사량대1~4주령양주아생장성능급위장도발육적영향。선용392지강출각적양주아공아,2 h시도재14지측정소화도중량화장도장도,잉여시험아수궤분위2조,분별사위목숙초분사량화도각분사량,매조7개중복,매개중복27지。재시험아적1、3、5、7、14、28일령,종매개중복수궤취2지시험아진행도재,측정위장도중량화장도장도,병관찰14、28일령시험아적십이지장、공장、회장조직형태。결과표명：사량섬유원대1~4주령양주아평균일증중화료중비무현저영향(P>0.05)。제7일령공장장도、14일령십이지장장도여맹장중량이급28일령맹장장도차이현저(P<0.05)외,사량섬유원대각일령위장도중량급장도장도균무현저영향(P>0.05)。목숙초분사량현저증가료14일령장도융모고도급십이지장고유층후도(P<0.05),사량섬유원대14일령공장화회장적융모고도급각장단은와심도무현저영향(P>0.05),대28일령각장단고유층후도、융모고도급은와심도무현저영향(P >0.05)。유차가견,사량섬유원불영향1~4주령양주아생장성능,단대위장도발육유일정적영향,재생산실천중이용도각체대목숙초작위사량주요섬유원시가행적。
This experiment was conducted to study the effects of different fiber source diets on growth perform-ance and gastrointestinal development of Yangzhou geese aged from 1 to 4 weeks. A total of 392 newly hatched male Yangzhou geese were selected and 14 geese in them were slaughtered for determining the gastrointestinal weight and intestinal length at 2 hours. The remainders were divided into 2 groups ( alfalfa meal group and rice husk meal group) with 7 replicates per group and 27 geese per replicate. At 1, 3, 5, 7, 14, 28 days of age, two geese in each replicate were taken for slaughter, the gastrointestinal length and intestinal weight were deter-mined, and the morphology of duodenum, jejunum, ileum were observed at 14, 28 days of age. The results showed that different fiber source diets had no significant effects on average daily gain and the ratio of feed to gain ( P>0 . 05 ) . Different fiber source diets had no significant effects on gastrointestinal weight and intestinal length (P>0. 05), except the jejunal length at 7 days of age, duodenal length and cecal weight at 14 days of age and cecal length at 28 days of age ( P<0 . 05 ) . The alfalfa meal diet significant increased the intestinal vil-lus height and the lamina propria thickness of duodenum ( P<0 . 05 ) . Different fiber source diets had no sig-nificant effects on villus height in jejunum and ileum and intestinal crypt depth at 14 days of age ( P>0 . 05 ) , also had no significant effects on lamina propria thickness, villus height and crypt depth of the whole intestinal at 28 days of age (P>0. 05). In conclusion, different fiber source diets have certain effects on the develop-ment of gastrointestinal tract of Yangzhou geese aged from 1 to 4 weeks, but have no effects on the growth per-formance. It is available to use husk instead of alfalfa in the production practice of geese.