In order to maintain good milking cows, the dry period is generally divided into two stages: dry milk and dry milk. The entire period from the beginning of dry milk until 15 days before calving is called the pre-drying period, and the 2 weeks before calving to delivery is often called the late dry period (also called the pre-period).
In the early stage of dry milk, the cows are generally given moderate nutritional status, using 4-5 kg ​​of quality hay and 10 kg of concentrated concentrate. Body condition score was 3.8-4.2 points, full body, shiny coat. For lean, dry cows need to increase nutrition, should be based on the nutritional needs of pregnancy, plus 5-10 kilograms of milk production of nutritional needs, so that the dairy cows recovered within a 20-day period between 3.5-4.0 points. In this stage, the diet should be based on roughage, with the appropriate material, the amount of concentrate generally accounts for 0.6%-0.9% of body weight, that is, 3.5-5 kilograms, dry matter ratio of refined coarse material is 30:70-20: 80 rooms. The crude fiber content of the diet should not be less than 18%. For young cows who are delivered for the first time, the feed should be quantified by 10% to 18% in order to prevent the negative metabolic balance of the cattle after the calving.
During the late period of dry milk, the cows should be given superior nutrient levels to bring the cows close to 4.5 points during calving. Therefore, according to the body condition, appetite, fecal type and expected milk production of the dairy cows at that time, it was determined that the amount of concentrate should be increased. In general, concentrates should be increased to 1-1.5 kg per 100 kg of body weight. The crude ratio is controlled between 30:70-40:60 and the crude fiber level is not less than 17%. Of course, the increase of the concentrate level requires a time gradient, which is generally increased by 0.3 kg per day. When the cow has anorexia, no more concentrate can be added. Only after the cow eliminates this phenomenon can it be considered to add a little more concentrate. For cows with excessive breast swelling or edema that occurred a few days before delivery, appropriate concentrates should be reduced, juicy feeds should be stopped, and the amount of salt should be reduced. If it is fed with wet concentrate, the concentrate at this stage must not be too wet. 20-30 days before labor, low-calcium diets should be fed to reduce the calcium content of dietary dry matter to 0.2%, and to reduce the amount of salt. In the 2-3 days before delivery, an anionic salt feed can be fed to prevent milk fever. At the same time, in order to prevent constipation, the amount of bran and other brackish feed should be properly increased in concentrates, which can account for 15%-23% of the concentrate. The breast condition must be carefully checked in the late period of dry milk, and if there is inflammation of the udder, it is immediately treated. .
In addition, during the whole dry period, the cows should be allowed to exercise freely in order to reduce dystocia and prevent crowding. Strengthen the miscarriage, do not feed deteriorating feeds, do not drink ice water, do not wash cows with cold water, and do not allow cattle to fall or slip.
Proteins are large biomolecules, or macromolecules, consisting of one or more long chains of amino acid residues. Proteins perform a vast array of functions within living organisms, including DNA replication, catalyzing metabolic reactions, responding to stimuli, and transporting molecules from one location to another.
We supply protein, which is generally consumed immediately before and after exercising, or in place of a meal. Some types of protein are to be taken directly before and after a workout, while others are to be taken before going to bed. The theory behind this supplementation is that bodybuilders, by virtue of their unique training methods and end-goals, require higher-than-average quantities of protein to support maximal muscle growth.
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