High summer temperatures pose a serious threat to dairy production. Therefore, it is necessary to manage the feeding of dairy cows in the hot season.
First, the breeding of summer cows
1. Due to the drought, the pastures are not growing well, and the normal intake of cows on forage is not satisfied. Therefore, it is necessary to break the conventional feeding amount during feeding and appropriately increase the amount of concentrate feed, which is about 10%, to meet the normal growth and production needs of dairy cows;
2. Appropriately reduce the amount of energy feed (8% reduction) and increase the amount of protein feed (5% increase). Due to the poor palatability of hot cows and the excess material, it is advisable to change some concentrates to increase once when the temperature is low at night.
3. Add 50-80 g/day of sodium bicarbonate (Soda) to the cow diet to adjust the pH value in the rumen.
4. Pay attention to the supplement of calcium and phosphorus when feeding. Normal dosage: between 50 and 100 grams per day. Those who feed concentrated feed can reduce the amount of feed appropriately.
5. In summer, the evaporation of skin of dairy cows is increased, and the loss of sodium is large. When feeding, attention should be paid to the amount of salt, which is normally about 100 g/day.
6. The preparation of summer cow's concentrate should be carried out half an hour before feeding to prevent rancidity of the refined feed and reduce the palatability.
7, take free drinking water, drinking water should be clean.
8, the return husbandry pastoral cows, roughage attention should be added, without adding mold failure deterioration hay, corn stalks, and the like silage. To increase the palatability of the cow, preferably sprayed brine hay, corn stalks is preferably crumple guillotine short, concentrate mix.
9, when the high-yielding cow concentrate supplement, the most difficult is to add energy feed, too easy to cause diarrhea, low cow gradual weight loss, it is best to add 50 days to 100 grams of brown sugar, especially in summer heatstroke can play a role .
Second, the summer cow management
1. Grazing cows in pastoral areas. Morning: early grazing, early return to the pastoral; afternoon: late, pastoral, late return to animal husbandry. No matter how big or small the cattle must be grazing at noon. In view of the drought, the pastures are not growing well. In order to meet the normal feed intake of dairy cows, it is recommended to set up a small group of grazing.
2, brushing cattle. The cow body should be brushed frequently. When the cow body is brushed, the outdoor temperature should be above 20 °C, the water temperature should be about 15 °C, and the washing sequence: from front to back, from top to bottom.
3. The pergola should be built in the sports field, requiring higher terrain, good ventilation, and direct sunlight, thus reducing the high temperature burden of the cows.
4, pay attention to the elimination of mosquitoes and flies to ensure the normal rest of the cows, the best use of high-efficiency, low-toxic drugs. Never use raw smoke.
5. When the temperature is high, wash the cow bed with cold water to reduce the temperature and increase the humidity of the house.
6, the normal weather cows are best outside the house, in case of abnormal weather, the cows must enter. There is no scientific reason for the saying that "the cow is drying the horse".
7. Do a good job of deworming the cows: It is best to deworm the cows three times a year. The best anthelmintic drug is worm plus albendazole.
8. Pay attention to the cow's spirit, appetite, digestion, lactation, etc., and find out the condition and early diagnosis and treatment.
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