Lactating cows group feeding management technology
First, feeding and management during dry period
1, low concentrate high coarse material. Reducing the amount of concentrated feed, increasing the amount of roughage, and stopping the feeding of succulent feeds, the dry matter content of the diet accounts for about 1.7% of the body weight, the ratio of fine dry matter to 30:70 is appropriate, and the amount of mixed concentrate accounts for 0.7% of the body weight. Around, calcium to phosphorus ratio of 1.6:1.
2. Stop milk safely. Mastitis examination should be conducted before stopping milk, and cows should be cured and then stopped for milk. The method of stopping the milk should adopt the fast dry milk method and inject the dry milk into the teat after the last milking. After breast-feeding, check the breast regularly and find that the abnormality has been dealt with promptly.
Second, the milking period of feeding and management
1, the feed ratio should be reasonable. Ensure dry matter intake, increase crude dry matter ratio, and increase dietary energy concentration. Dietary dry matter accounts for 3-4% of body weight, rough dry matter ratio is 60:40, dry matter ratio for grass storage is 50:50, calcium-to-phosphorus ratio is 1.5:1, and mixed concentrate feed accounts for 2-3% of body weight. At the same time, increase the amount of good palatability succulent feed and dregs feed. The milk ratio is 2.5:1.
2, balance feed nutrition. Pay attention to the balance between energy feed and protein feed in the mixed concentrate. Excessive amounts of energy feeds, especially carbohydrates, can cause a decrease in the pH of the rumen, trigger ruminal acidosis, and cause a decrease in milk fat percentage. Excessive protein feed can easily cause ketosis, and at the same time insufficient energy feed can lead to a decrease in protein synthesis.
Maintain a reasonable level of nutrition. Dietary dry matter occupies 2–2.5% of body weight, rough dry matter ratio is 40:60 to 50:50, grass-stem dry matter ratio is 50:50, calcium-to-phosphorus ratio is 1.6:1, and mixed concentrate feeds account for 1 of body weight. 1.5%. With the decrease of milk production, the amount of concentrate feed should be gradually reduced to increase the amount of roughage feed. Milk ratio 2.5-2:1. Also pay attention to miscarriage and prevent miscarriage.
1, low concentrate high coarse material. Reducing the amount of concentrated feed, increasing the amount of roughage, and stopping the feeding of succulent feeds, the dry matter content of the diet accounts for about 1.7% of the body weight, the ratio of fine dry matter to 30:70 is appropriate, and the amount of mixed concentrate accounts for 0.7% of the body weight. Around, calcium to phosphorus ratio of 1.6:1.
2. Stop milk safely. Mastitis examination should be conducted before stopping milk, and cows should be cured and then stopped for milk. The method of stopping the milk should adopt the fast dry milk method and inject the dry milk into the teat after the last milking. After breast-feeding, check the breast regularly and find that the abnormality has been dealt with promptly.
Second, the milking period of feeding and management
1, the feed ratio should be reasonable. Ensure dry matter intake, increase crude dry matter ratio, and increase dietary energy concentration. Dietary dry matter accounts for 3-4% of body weight, rough dry matter ratio is 60:40, dry matter ratio for grass storage is 50:50, calcium-to-phosphorus ratio is 1.5:1, and mixed concentrate feed accounts for 2-3% of body weight. At the same time, increase the amount of good palatability succulent feed and dregs feed. The milk ratio is 2.5:1.
2, balance feed nutrition. Pay attention to the balance between energy feed and protein feed in the mixed concentrate. Excessive amounts of energy feeds, especially carbohydrates, can cause a decrease in the pH of the rumen, trigger ruminal acidosis, and cause a decrease in milk fat percentage. Excessive protein feed can easily cause ketosis, and at the same time insufficient energy feed can lead to a decrease in protein synthesis.
Maintain a reasonable level of nutrition. Dietary dry matter occupies 2–2.5% of body weight, rough dry matter ratio is 40:60 to 50:50, grass-stem dry matter ratio is 50:50, calcium-to-phosphorus ratio is 1.6:1, and mixed concentrate feeds account for 1 of body weight. 1.5%. With the decrease of milk production, the amount of concentrate feed should be gradually reduced to increase the amount of roughage feed. Milk ratio 2.5-2:1. Also pay attention to miscarriage and prevent miscarriage.
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