动物实验 z-bo 2020-10-12 371

　　The objective dog is one of the earliest domestic animals. In the 1940s, dogs began to be used as experimental animals for research. Dogs are mainly used for research on several diseases in experimental surgery, basic medicine, pharmacology, toxicology and biomedicine. The development of biomedicine is very important. Providing stable formulas and standardized feeds for experimental dogs is an important part of improving experimental science. At present, the production of experimental dog food mainly uses an expansion process. In this article, we will mainly study the difference between the measured values of protein, fat, amino acids, vitamins and trace elements in experimental dog food under certain puff conditions and the formula values.

　　According to the data of "China Feed Ingredients and Nutritional Value Table" (28th edition), calculate the prescription value of each nutrient component in the experimental dog food formula, and put the completed experimental dog food into the laboratory. Send to find actual value. Compared. Results After expanding the experimental dog food, fat was reduced by 6%, histidine, lysine and methionine were reduced by 8%, 6% and 2% respectively, and vitamin E, vitamin B2, niacin, choline and vitamins were added. B6. Lost. The ratios are 29%, 65%, 46%, 1% and 81%.

　　Under the conditions of the puff parameters set in this study, the loss of various nutrients in the experimental dog food is shown in the results. Because the puff parameters are different, the effect on nutrition is also different, so it is recommended that colleagues adjust their diet formula appropriately according to the actual production conditions.