1, sows estrus cycle. The estrus cycle is 16-25 days, with an average of 21 days. The gilts are estrus at about 150-170 days of age; the sows are estrus 3-10 days after weaning.
2, the early stage of estrus. The sows were thrilled; they were sensitive to the surrounding environment; feed intake decreased significantly; genital area was slightly red and swollen; sows had a more pronounced performance than sows.
3, the performance of estrus. Trying to crawl into other sows; genital swelling is evident; viscous secretions are visible; standing upright when the other sow crawls, both ears erect.
4, late estrus ovulation. It is only in the estrus stage that the sows receive boar mating. General sows begin ovulation 36 to 40 hours after estrus. Therefore, sows are required to be escorted 3-4 times during the estrus period, 12-24 hours apart.
5, timely breeding. (1) For empty sows and gilts that have been bred, the estrus should be checked every morning and evening. For sows that have been bred, special attention should be paid to checking whether they return to the animals after 18-24 days and 38-44 days after breeding. Once the estrus and regrowth sows are found, they should strive for timely breeding. (2) The estrus sow should be bred or inseminated twice during the estrus duration. For the first time, in the morning when the pig's back has a standing reaction, it will be bred or inseminated once in the afternoon of the same day and then be bred or inseminated once in the morning; when there is standing reaction in the back of the pig in the afternoon, it will be bred on the next morning or Insemination once in the afternoon or insemination. (3) pregnancy judgment. The easiest way to determine the pregnancy is whether the sow returns heat within 21-30 days of breeding. If no heat is established, it is dubbed. Otherwise, it is not dubbed. Pigs that have not been paired for two consecutive periods of time should be eliminated immediately. Sow pregnancy range is 110-120 days. An average of 114 days.
Access Control Keypad is a security product that can be connected to a lock and unlocked by swiping card, password, fingerprint, mobile phone, etc. Residents can connect the access control keypad to the electric lock, Magnetic lock , etc., and then control the door opening by access control keypad.
The access control keypad also plays a very important role in the whole intercom system. If there are multiple doors in the building and residents need to be controlled to open all doors. For this project only needs to use one main Video Intercom System in the main door. For example, there are two doors in the building.
We can offer you with two solution for this project:
1. Customers can use 2 sets Video Door Phone for two doors
2. Customers can use 1 set video door phone and 1 set access control keypad,one for mainly door and another one for side door or basement.
Usually many customers will choose to use the second one solution. Because it can save more money for the whole project to the greatest extent.
There are many different solutions for the connected access control keypad, which can be modern access control keypad, open the door with a password or swipe card, and some customers like to be more intelligent, that is remotely unlock, which can work together with the video door phone to remotely unlock two doors through the mobile phone APP.
The following is our access control keypad, which supports password and card swiping.
The following are its parameters for your reference:
1. metal shell, waterproof
2. Touch the button
3. 1000\4000 users
4. anti-flapping door
5.external card reader
We are a factory specializing in the production, manufacture and research and development of Access Control System for 11 years. If you want to know more about us, please send us an inquiry, we are very honored to share the catalogue and price with you.
FAQ
Q: What is your service ?
a. we can offer OEM&ODM services
b. All software free provide , and technical support after-service
c. Online installation guide services.
Q: Whats the MOQ?
To ensure the best logistic cost, we suggest 100pcs(one carton).However, we are open to take orders with small qty.Welcome to sample order, contact with us.
Q: What payment terms are available?
T/T, Paypal, Western Union, credit card.
Q: How long is your production lead time?
Sample Order-Within 1-5 working days.
Bulk Order - 15-20 days for neutral items, 7 days if the items we have stock
Q: What's Your Products Warranty?
We Offer 12 Months Warranty after shipment sent.
Access Control Keypad,Gate Entry Keypad,Keypad Access Control System,Door Entry System Keypad
Zhuhai Mingke Electronics Technology Co., Ltd , https://www.mingke-tech.com