Half of animal and vegetable protein feed chicken

In the practice of raising chickens (broilers and laying hens), we all know that protein feeds can promote growth and development, increase egg production, and some add sufficient amounts of bean cakes, cotton cakes, and peanut cakes in the diet of chickens. And other oil cake feeds to meet the chicken's protein needs. This is okay. However, protein feed is divided into two categories: one is animal protein feed (such as fish meal, bone meal, blood meal, shrimp meal, etc.); one is vegetable protein feed (such as bean cake, cotton seed cake, peanut cake, etc.). In chicken diets, do not use only one of them, it is best to use both at the same time. Because of the high protein content in the vegetable protein feed, the amino acids contained in the feed are incomplete. If all the diets use plant protein feeds, the best feeding results cannot be achieved.

The amino acid content of animal protein feeds is relatively high, especially the major essential amino acids such as methionine and lysine. Therefore, in the chicken diet, the combination of plant protein feed and animal protein feed can achieve the best feeding effect and increase economic efficiency. Generally two kinds of protein (animal, plant) accounted for 1/2 each. It is recommended that the chicken farmer may wish to try.

Centrifuge tubes are precision-made, high-strength tubes of glass or plastic made to fit exactly in rotor cavities. They may vary in capacity from 50 mL down to much smaller capacities used in microcentrifuges used extensively in molecular biology laboratories. Microcentrifuges typically accommodate disposable plastic microcentrifuge tubes with capacities from 250 μL to 2.0 mL.

 

Glass centrifuge tubes can be used with most solvents, but tend to be more expensive. They can be cleaned like other laboratory glassware, and can be sterilized by autoclaving. Small scratches from careless handling can cause failure under the strong forces imposed during a run. Glass tubes are inserted into soft rubber sleeves to cushion them during runs. Plastic centrifuge tubes, especially tend to be less expensive and, with care, can be just as durable as glass. Water is preferred when plastic centrifuge tubes are used. They are more difficult to clean thoroughly, and are usually inexpensive enough to be considered disposable.

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