Sheep in northern China have a seasonal estrus cycle, unlike the year-round breeding of ewes in southern regions. Breeding typically begins in August and September, marking the peak season for sheep. Missing this window can lead to significant losses, as the autumn climate is ideal—neither too hot nor too cold, with abundant grass that helps ewes gain strength and maintain good health. This enhances their fertility, increases mating desire, and improves the chances of successful pregnancy. Lambs born in February or March will benefit from the lush spring grass after weaning, supporting their growth and the ewe’s milk production. By the following autumn, these lambs will be ready for breeding, offering a great opportunity for profit. If not bred during the optimal estrus period, ewes may miss the chance entirely, leading to economic loss.
To maximize breeding success, proper grazing management is essential. Rotational grazing should be implemented, allowing sheep to graze in sections so they don’t overgraze one area. Morning grazing followed by returning to the same pasture later in the day helps ensure they eat more efficiently. Weather conditions must also be considered—sheep should be brought back before frost, and if not fully fed, supplementary feeding is necessary. This not only improves their condition but also supports estrus and increases the likelihood of multiple births.
Selecting high-quality breeding stock is equally important. Rams play a critical role, as one ram can mate with 30–40 ewes, or up to 1,000 with artificial insemination. Choosing a healthy, genetically sound ram ensures better offspring quality in terms of wool, meat, and milk. Ewes should be selected based on their age (2–7 years), physical traits, and reproductive history. They should have strong udders, good milking ability, and a history of producing healthy lambs. Avoid inbreeding and check for any genetic or health issues like infectious diseases or reproductive problems.
Timing is crucial when it comes to breeding. Ewes typically go into heat every 17–21 days, with each estrus lasting 2–3 days. Breeding should occur at the right time—too early and sperm viability drops, too late and the egg becomes less fertile. Younger ewes have longer estrus periods, so breeding can be slightly delayed, while older ewes need earlier intervention. Mid-aged ewes require careful timing between the two extremes. Using multiple rams of different breeds during mid- to late estrus can increase conception rates and the number of lambs per litter.
Environmental factors also influence breeding success. Mating in the evening or early morning is ideal, as it aligns with the natural fertility window and improves conception rates. Overall, understanding the seasonal patterns, managing grazing effectively, selecting quality breeding stock, and timing mating correctly are all key to maximizing sheep productivity and profitability.
Blood Pressure Machine
Electronic smart digital Upper arm and Wrist Blood Pressure Monitor automatic.
we are manufacturer of Blood pressure monitor for more than 12 years, we can accept OEM/ODM as for your requirements.
More closer to our peoples' heart, so the result of measurement will be more accurate.
Main Feautures For Electronic Sphygmomanometer Automatic BP Machine Digital Upper Arm Blood Pressure Monitor:
· Measurement method: oscillometric method
· Display screen: LCE big digital display shows high pressure / low pressure / pulse
· Blood pressure classification: WHO sphygmomanometer classification indicates blood pressure health
· Intelligent pressurization: automatic pressurization and decompression, IHB heart rate detection
· Year/month/day time display
· 2*90sets of measurement results memory for two people; the average reading of the last 3 measurements for data comparison
· One button measuremment,automatic turn on-off for convenient operation
· Blood pressure value unit Kpa and mmHg for conversion (boot default unit is mmHg)
Comfortable cuff included
· voice broadcast function is optional,any OEM demand available
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Shenzhen Urion Technology Co., Ltd. , https://www.urionhealth.com