Effect of moisture content of three feedstuffs on major nutrients and gibberellin content
The objective of the experiment was to investigate the effects of storage under varying moisture conditions on the main nutrient content and mold formation in corn,soybean meal and wheat bran,at a temperature of 35 ℃.Four different moisture content groups(14％,16％,18％and 20％)were established for each ingredient.The main nutrients,including crude protein,crude fat and crude ash,were measured on the 20th and 40th day of storage.Additionally,the erythromycin content in the feed was measured on the 40th day.The results showed that during storage,the crude protein and crude fat contents of the feed decreased,while the crude ash content increased.A significant linear relationship was observed between the changes in crude protein,crude fat crude ash contents and the water content in the feed(P＜0.05).Furthermore,the gibberellin content in all three feed ingredients exhibited a consistent linear increasing trend(P＜0.05).The results indicated that the higher the moisture content of the feed,the more pronounced the changes in nutrient content and the greater the erythromycin content.Additionally,with longer storage times,there was a greater decrease in nutrient content and an elevated gibberellin content.These findings emphasized the importance of minimizing water content in feed storage and avoiding prolonged storage whenever possible.
万方数据
维普
