Hybrid cattle fattening technology
Choose high-limb, long-bodied, loose and elastic skin, thin muscles, clear skeleton, wide but not full, hairy, soft and healthy cows. Due to the large growth potential of this bovine, fattening effect is good. Improve feed utilization Select the appropriate roughage ratio and nutritional level. In the first 30 days, the crude roughage ratio was 3:7 to 1:1, the crude protein content was 12%; in the middle 70 days, the crude roughage ratio was 6:4, the crude protein content was 11%, and the last 10 to 20 days, the crude roughage ratio. For 7:3 to 8:2, the crude protein content of the concentrate was 10%. Usually in the last 10 days, the daily feed intake of concentrate feed should reach 4 to 5 kg/head, and the crude feed should allow cattle to feed freely. Feed processing should be scientific. (1) Concentrate: For example, the grain size of corn should be above 1 mm and the grain size of sorghum should be 1 mm. (2) The roughage cutting and crushing length is preferably 5 to 10 mm. The rational use of industrial wastes such as brewer's grains and starch slag, together with the use of additives, can replace 90% of the concentrate in the diet, and the daily weight gain can still reach 1.5 kilograms. Its usage is: brewers feed 15 to 20 kilograms per cow per day, plus 150 grams of baking soda, 100 grams of urea, 100 grams of beef cattle additive premix. Starch slag, bean curd residue, sugar, soy sauce residue, feed 10 to 15 kilograms per cow per day, add 150 grams of baking soda, 100 grams of urea, 100 grams of beef cattle additive premix.
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The foreign breed of bulls was used as the father of the improved crossbred cattle.
To choose 2 to 4 years old, weighing 300 to 350 kg, large and thin cattle shelf. Such cattle have large feed intake, high daily weight gain, good fattening effect, short feeding period, and fast cash flow.
Full use of feed silage technology, straw ammoniation and fermentation technology. Silage corn is a good feed for fattening cattle. When feeding silage, a higher daily weight gain can be achieved at a lower level of concentrate feed, and urea can be added at 2% dry matter of corn silage to obtain good quality. effect.
Improved feeding technology
General fattening of beef cattle can be used to limit the free-feeding finishing method of concentrate feed, that is, to limit the feeding during the initial period of fattening, and to feed freely at the late stage of fattening. This method can improve feed efficiency by 5%.
Males and females must be kept in separate rows. Generally, bulls gain 10% more weight than yak, calves are 10% higher than cows, but bulls affect growth and development within 1 to 2 months after castration. The use of drugs or hormones castration, medication for a long time, the effect is poor, there are drug residues, hormone residues, meat does not meet the health requirements, so when choosing a shelf cattle to consider the impact of gender on the speed of weight gain, the bull fattening should not go Potential.
Appropriate urease inhibitor premixes are used in the fattening process to increase the daily gain of beef cattle.
Regularly do a good job in environmental sanitation and epidemic prevention work, regularly repel internal and external parasites, control and eliminate the occurrence of infectious diseases and internal surgical diseases.
Beef cattle should be slaughtered as soon as possible when they reach about 500 kg. After weighing more than 500 kilograms, the daily gain decreased, the consumption of material per kilogram of weight gain increased, the cost of fattening increased, and the profit decreased.
Choose scientific formula
Feed formulation based on silage corn (wet weight): 80% for silage, 18% for corn, and 2% for cottonseed cake.
Feed formulation based on distiller's grain (wet weight) (for example, growing beef cattle weighing 300 kg): 1.5 kg of corn, 15 kg of fresh lees, 2.5 kg of cereal straw, 70 g of urea, 30 g of salt, 100 g of additive premix . Due to the low degree of crude protein degradation of distillers grains, it is easy to lead to insufficient degradable nitrogen in the rumen of cattle, and the crude fiber digestibility is reduced. If a certain proportion of urea is added to the distiller's grains diet, good results can be obtained.
Formulas for beef cattle weighing less than 300 kg on a cattle farm scale: 61 kg of corn, 15 kg of wheat bran, 20 kg of cotton seeds, 1 kg of salt, and 1 kg of bone meal. 100 grams of premix per day per cow, 2 kg of concentrate feed, and roughage allow free access to feed. The formula for beef cattle with a body weight above 300 kg in cattle farms is 70 kg of corn, 13 kg of bran, 15 kg of cotton (heterophylla) cake, 1 kg of salt and 1 kg of bone meal. 100 grams of premix per day per cow, 3 to 3.5 kilograms of concentrate feed, and roughage allows them to feed freely.
