Effect of xylooligosaccharide on laying performance of laying hens
In order to study the effect of xylooligosaccharide on laying performance of laying hens, this test was conducted and reported as follows.
1 Materials and methods
1.1 Sources and time of test materials
The test xylooligosaccharide was supplied by Jiangsu Kangwei Biological Co., Ltd. under the trade name Yishengyuan (200 g/bag, containing 35% oligo-poly-xylose); the test chicken was a Roman hen (21-day-old 3,600 pigeons) ), Isa hen (240 days old, 3,600 pigeons); the test site is in the laying hens of the town of Jiaotong Town, Sheyang County; the test period is from June 20, 2004 to August 20, 2004, and the test period is 60 d.
1.2 Experimental Design
The experiment was carried out in two chicken houses at the same time. There were 3,600 Isa hens in Nanshe. The experiment was divided into three groups. The first group was a blank control group; the second group was a 0.015% oligosaccharide group. Three groups were added with a 0.02% xylooligosaccharide group. There are 3,600 roman hens in Beishe, and the test set is the same as Nanshe.
1.3 Test diet formula
The source of the test feed was corn from Dongshe, soybean meal from Zhangjiagang Donghai Grain and Oil, shell-based real estate, 5% premix produced by Wuxi Zhengda, and the addition of Shanghai Veterinary Medicine Factory. The specific diet consisted of 63% corn, 24% soybean meal, 5% premix, and 2 bottles per egg.
1.4 Test method for laying hens
The test hens were given free drinking water, feeding and light for 17 h. The average feed intake per chicken was 120 g. The feeding method was 3 steps in cages, 3 chickens per cage, 2 feedings per day, morning. Feeding 60% of the whole day at 7:30, feeding 40% of the whole day at 17:00, and the whole group of chickens were mixed with enrofloxacin at a concentration of 50 mg/kg for 3 days before the test for 5 days. The flocks were clustered and the fake chickens were eliminated.
2 Results and analysis
2.1 The effect of xylooligosaccharide on laying rate of laying hens
After statistical analysis of the experimental groups, the egg production rates of the three groups in Nanshe were 88.4%, 93.1%, and 92.2%, respectively (see Table 1 for the results). The results showed that 0.015% and 0.02% oligomerization were added. The xylose group was significantly different from the blank control group, while the 0.015% group had the highest egg production rate.
The egg production rate of the three groups in Beishe was 87.8%, 91.6%, and 91.1%, respectively, and the results were similar to those of the Nanshe group (see Table 2 for details).
2.2 The effect of xylooligosaccharide on egg production in each group
From Table 1, it can be seen that the average daily egg weight of the 0.01% and 0.02% xylo-oligosaccharide group in Nanshe is significantly higher than that in the blank control group, while the 0.015% group is slightly higher than the 0.02% group. The results of the Beishe test are similar to those of Nanshe (see Table 2 for details).
2.3 The effect of xylooligosaccharide on the ratio of egg to egg in each group
It can be seen from Table 1 that there is no significant difference between the groups of 0.015% and 0.02%.
2.4 Weekly egg production in each group during the test period
It can be seen from Table 3 that the average daily egg production of 0.015% and 0.02% of the xylo-oligosaccharide-added group and the blank control group within 4 weeks of the test period is different, but not significant, and the test group is added to the blank control group for 5-8 weeks. The difference in egg production is extremely significant.
2.5 affects the efficiency of laying hens
It can be seen from Table 4 that 0.015% xylooligosaccharide is added to the laying hens, and each laying hen can make an annual profit of 0.39 yuan. If a farmer raises 1,000 laying hens a year, the annual profit can be increased by 3,000 to 4 000 yuan.
3 Conclusion
Adding 0.015% xylooligosaccharide to the laying hen's sugar can significantly improve the production performance of the laying hen and reduce the ratio of the egg to the egg. At the same time, the odor of the chicken faeces is reduced, the chicken manure is formed, and the feed conversion rate is significantly improved. In addition, due to the increased resistance, the chance of infection of bacterial diseases is reduced, so that the laying ability of the hens can be fully utilized.
Wang Hua ( County Animal Husbandry and Veterinary Station, Jiangsu Sheyang 224300)
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