Under natural conditions, cows can only produce 3 to 4 cows in their lifetime. How to give full play to and exploit the breeding potential of good female animals, so that high-quality and high-yielding dairy cows will have more production of female dams has always been the goal pursued by people. In order to solve this problem, we adopted the reproductive and immunological techniques in the implementation of large-scale breeding of dairy cows to develop a multi-producing vaccine for the use of cows to carry out the rapid propagation and propagation of twins of elite dairy cows, and achieved satisfactory results. The approach is as follows. 1. Proactive immunization of cows with prolific vaccines will enable the cows to produce 2 to 4 calves in 1 fetus with the same sex, thus effectively avoiding the disadvantage of having 95% of the heterosexual maternal neonates with infertility. The specific method of use: in the cow estrus adaptation period intramuscular injection of 30 to 40ug of prolific vaccine, and then artificial insemination, the success rate of production of 2 to 4 yak yak in more than 85%. 2. At the same time as artificial insemination, combined with the use of frozen sperm (or gender control fluid), you can completely achieve the purpose of full control of the birth of the public mothers and rapid increase the high and high yield of dairy cows. Its propagation speed is 4-8 times that of the natural state. The test results show that the comprehensive application of the above two technologies can greatly improve the breeding ability of improved breeder dairy cows, with significant effect and low cost, which is far simpler and more affordable than embryo transplantation, and is more suitable for the promotion and application of small and medium-sized farms and specialized households.
Doorbell Camera
1. Considering the limitation of storage space and storage cost, as well as the fact that video recording in public places such as residential areas is a prerequisite for multi slot and a certain degree of clarity, video recording is generally deleted once a week or so. 15 days for general entertainment venues, 26 days for financial industry, and 3 months to half a year for banks, depending on the current venue regulations
2. The length of the storage time of the monitoring video is generally related to the following points: the capacity of the host's hard disk. Generally, a camera needs about 0.3G-0.5G of hard disk capacity for 24 hours of continuous video recording. Different systems have different parameters, the minimum is 0.15G/24 hours;
3. The number of cameras. The more cameras, the more capacity required. Also, the selection of the resolution and picture quality of the recorded picture will also affect the capacity required for video storage;
4. The video recording mode will also affect the space required for storage. The video recording mode is generally divided into [Mobile Video Recording] and [Continuous Video Recording]. The former means that the host starts to record when a moving object passes through the monitoring range, and does not record at other times. This can reduce the storage space required for video recording; On the contrary, continuous video recording is 24-hour continuous video recording.
Doorbell Camera,360 Degree Camera, Night Vision Security Camera, Security IP Camera
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