The feed cost of dairy cows accounts for 70%, and the use of feed technology directly affects the cost of farming. Therefore, when formulating dairy cows' diets, local feed resources should be combined to meet the nutritional needs, but also to reduce feed costs and strive for maximum economic benefits. Roughage proportion of diet According to the physiological characteristics of dairy cows, choose appropriate feed ingredients, based on dry matter, the proportion of coarse food in the diet should be 40% to 70%, which means that the crude fiber content in the diet should account for 15% to 24% of dry matter. %. In early lactation, the proportion of coarse material should also be 40% to ensure the health of cattle. Feed amount In dairy cow production, it is generally required to maintain 3 kg of milk for cows, and then determine the amount of 3 kg of milk to be fed with 1 kg of concentrate. Salt accounts for 1%~2% of concentrates. Feed intake In order to ensure that the cows have enough feed intake, the food should have sufficient volume and dry matter intake. The dry matter requirement of the high-yielding dairy cows (daily milk yield 20 kg to 30 kg) is 3.3% to 3.6% of the body weight. Dairy cows (15 kg to 20 kg of milk per day) ranged from 2.8% to 3.3%; low-yield cows (daily milk yield of 10 kg to 15 kg) ranged from 2.5% to 2.8%. Dairy cow premix In practical production, there are many kinds of additives and the amount is very small. If it is added directly to compound feed, it is difficult to mix. Therefore, before adding the compound feed, the additive and a suitable carrier or diluent are mixed uniformly through a certain processing process to increase the volume and increase the added amount in the compound feed so that the trace additive can be evenly distributed in the compound feed. distributed. This mixture of one or more additives and the carrier and (or) diluent is a mixture of additives called premixes, referred to as premixes. Dairy cow premixes include single premixes (such as trace elements or vitamin supplements) and composite premixes (including vitamins, trace elements, baking soda, and other additives). It is a kind of incomplete feed and cannot be directly fed to cows. The amount of premix used in dairy cows' concentrates is generally 1% to 5%. When farmers purchase, they should understand the ingredients contained in the premix and purchase them according to the formula. For ease of use, you can purchase a compound premix. However, due to the destructive effect of the trace elements in the composite premix on the vitamins, the products should be purchased within the effective period of purchase, and the shorter the delivery time, the better. Use according to the product logo and follow the instructions. Because the proportion of premix is ​​small, when mixing with concentrate, it should be diluted and then mixed. Dairy cow concentrate feed Dairy cow's concentrated feed refers to a homogeneous mixture of protein feed, mineral feed (calcium, phosphorus, and salt), and additives premixed in certain proportions. Concentrated feeds cannot be directly fed to dairy cows. Before consumption, they must be formulated with a certain proportion of energy feed (mainly corn, bran) to become a concentrate mixture before they can be fed. At present, there are many varieties of dairy concentrates on the market. Due to the proportion of concentrates used in the concentrates and the needs of dairy cows fed at different stages, the nutrient composition of the concentrates is also very different. Farmers can use their own energy feeds ( Physiological stages of corn and bran and cows are purchased for use. Dairy concentrate supplements Dairy cow concentrate supplements, also known as concentrates, are feeds formulated to supplement the nutritional deficiency of dairy cow roughage. Because of the rumen's physiological characteristics of dairy cows, roughage and succulent feeds should be fed separately when concentrates are used. When using dairy cow supplements, farmers should first purchase different concentrate supplements based on their own roughage conditions and the different physiological stages of the cows. For example, dry dairy cows cannot use the feed during the milk production period, and during the calf season they cannot use the feed during the breeding period. If the roughage food is in poor varieties, crude protein and high energy and good quality feed should be purchased. Ertapenem Sodium,Imipenem Ertapenem,Ertapenem Antibiotic,Ertapenem Side Chain Xinxiang Haibin Pharmaceutical Co.,Ltd , https://www.carbapenemspharmacy.com
Method for feeding cows efficiently