First, the cowhouse temperature
Cows are not cold and heat-resistant, but cold has a certain limit. The most suitable temperature for dairy cows is 12°C～14°C. The most suitable temperature for pregnant cows and lactating dairy cows is 16°C～20°C; the temperature of lactating dairy cows is higher than 24°C. At or below -4°C, the milk yield is reduced; the most suitable temperature for the leap year is 35°C to 38°C.
Second, drinking water temperature
1, lactating dairy cows drinking temperature
(1) Ordinary drinking water temperature: Dairy cows drink cold water and affect milk production. In the spring, the drinking temperature of cows should be maintained at 9°C～15°C. Compared with cows drinking 0°C～2°C water, the milk production rate can increase 8.7%; (2) Drinking wheat Bran water temperature: Dairy cows feel thirsty after losing a lot of water after birth and have a low body temperature. At this time, the bran water with a drinking temperature higher than the body temperature of 1° C. to 2° C. takes the place of drinking water, and has the effect of supplementing body fluids and warming the body. It is forbidden to drink cold water, otherwise it may cause diseases such as retention of tires and colds.
2, Yak drinking temperature
(1) General drinking water temperature: The calf's body temperature is higher than that of adult cattle, and the general drinking water is 35°C~38°C; (2) The calf's milk temperature: When the calf is artificially nursing, no matter colostrum or regular milk, it should be After heating and sterilizing, feed it when it is cooled to 35°C-37°C. In addition, the production of "small white beef" requires the use of breast-feeding male calves that are not emaciated. From birth to 100 days of age, it is completely dependent on milk for nutrition. The milk temperature must be controlled within the range of 40°C to 41°C, and the temperature should be maintained at 18°C. ~20°C.
Third, scrub the temperature of the breast water
Every time milk cows are milked, they need to use a dry towel soaked in warm water of 45 °C ~ 50 °C, fully scrub the breasts, nipples, and then massage the breasts. After 1 to 2 minutes, a "milk" reflex is generated and milking can begin immediately. Never scrub your nipples with hot or cold water, as this will reduce your milk production.
Fourth, the temperature of milk preservation and disinfection
1. Milk storage: Newly extruded milk, the temperature is close to the body temperature of the cattle, if it is not cooled, it will quickly become rancid and deteriorated. Therefore, immediately soak the container with cold water, and lower the temperature of the milk to 4 °C ~ 10 °C.
2, milk disinfection: milk contains a variety of harmful microorganisms, such as the disinfection of these harmful microorganisms multiply, so that the milk rancid deterioration. Disinfection does not use drugs, mainly to adopt "non-high temperature" heating and disinfection method, that is Pasteur disinfection method is: the milk is heated to 75 °C ~ 80 °C, keep 15 to 30 minutes, immediately stop heating.
Fifth, the preservation temperature of bovine semen
Sperm is not afraid of heat, 54.5 °C can make sperm inactivated, since the 20th century 50 years, the preservation of semen into the "ultra-low temperature" preservation of the times, the current use of liquid nitrogen, the temperature is -196 °C, can save semen for decades Not bad. Its conception rate is similar to that of fresh semen, and this method has been widely used in the cattle industry.
Sixth, the temperature of bovine frozen semen preheating
When inseminating cattle, the frozen semen needs to be thawed. The thawing requires warm water. The temperature of the water should be accurately controlled at 41°C to 50°C, and the temperature difference between the upper and lower sides should not be greater than 10°C to ensure that the thawing sperm motility is not affected. Improper temperature and declining fertilization rate.
Royal Jelly is also called Bee Milk. The fresh royal jelly is slightly ropy milk paste substance; it is the excretive mixture of nutrition gland and maxilla gland of the head of little worker bee. The worker bees use this to feed the 1-3 days` worker bee larva and drone larva, 1-5.5 days` queen bee larva and queen bee in the oviposition period. The royal jelly is the biologic product containing very complicated active elements which contains almost all the nutrition elements required by the growth of the human body.
Royal Jelly
Royal Jelly,Natural Royal Jelly,Healthy Royal Jelly,Organic Fresh Royal Jelly
Easy Food (Jiaxing) Co., Ltd. , https://www.jxeasyfood.com