Effect of Crude Fiber Content in Feed on Meat Goose

Goose is a herbivorous poultry, mainly green feed, consumes less grain, and has the characteristics of resistance to rough feeding, fast growth, good adaptability, strong disease resistance and low feeding cost; goose has high protein content, fat, cholesterol content Lower than chickens, ducks, pork, consumers are considered green health food. Crude fiber (CF) is a major component of the plant cell wall and has a dual role in animal nutrition. In the appropriate range, there is the role of maintaining the normal structure and function of the intestine, preventing the animal from eating food and improving the quality of the carcass; but if it is too high, it will affect the digestion and absorption of nutrients.
Through experiments, we can obtain some data, that is, the effect of crude fiber content on the growth of meat geese: When the CF content is low, it has a promoting effect on the feed intake. When the content reaches a certain level, the two are negatively correlated. In the experiment, when the CF level was low (5% to 6.97%), the feed intake increased with the increase of the CF level, but the difference was not significant; the CF reached a certain level (8.98% to 10.98%) and the feed intake began to decline. There are many reasons that affect animal feeding. The main reason may be that high CF levels affect feed palatability and enhance animal satiety, thus affecting feed intake. Some tests have shown that the CF ratio is too high, not only will increase the load of the digestive tract, but also increase the excitability of the parasympathetic parasympathetic nerves, affecting the digestion of the fibers by the intestine, which leads to the geese can not reduce the feed intake through regulating the intake of food. The CF content can be determined by a fiber tester. The Top Fiber instrument for growing coarse fiber can measure six samples at a time, greatly improving the testing efficiency. In addition, the number of microbial flora is very dependent on the diet as the source of the final metabolic substrate. Therefore, changes in dietary composition and nutrient concentration have a significant impact on the number of intestinal microbial flora. With the increase of CF levels, Bifidobacterium and Lactobacillus in the intestine of the goose increased significantly. The immune organs of meat geese are also affected by the crude fiber content. The development status of immune organs will directly affect the level of immunity, and the increase in the weight of immune organs is a sign of rapid growth and development. The immune system is necessary for animals to maintain normal physiological functions. The growth and development status of immune organs directly affects the level of immunity and disease resistance of birds. In this experiment, the index of immune organs in group B was the highest. This shows that the 6.97% CF level is most conducive to the development of immune organs. The law of changes in immune organs index is consistent with the regularity of daily gain of goose, which also validates the weight of immune organs. The increase is the result of rapid growth.