Factors affecting duck breeding performance

I. Age of ducklings The early age of ducks was too early, which not only had adverse effects on their own growth and development, but also had a low fertility rate. General egg-type ducks were sexually mature earlier, and the initial age was appropriate for 5 months of age; meat-type ducks were sexually mature later, and the initial age was 6 months. Second, the proportion of males and females with the breeding performance of ducks due to different varieties of different types. The appropriate ratio of ducks to female ducks is 1:20 to 1:25 for egg-type ducks, 1:5 to 1:8 for meat-type ducks, and 1:15 to 1:20 for dual-use ducks. Third, other factors affecting the performance of duck breeding In addition to the proportion of species, species, but also by the following factors, the breeding households can be adjusted according to feeding needs: (a) seasonal factors. In early spring, the climate is cold and ducks are affected by sexual activity. The proportion of male ducks should increase by about 2% (based on the number of female ducks). (B) feeding and management factors. Under good husbandry conditions, the proportion of male ducks can be appropriately reduced. (c) The time factor of male and female ducks. Prior to the breeding season, appropriate advance gregary can increase fertility in female ducks. (d) Age factors of breeders. The 1-year-old breeder has a strong libido and strong breeding ability. Therefore, the proportion of male ducks can be appropriately reduced at this time.

 ETR Nurse Call System 

ETR Medical Nurse Calling System is designed for providing the communication between patients in wards and medical personnel in nurses offices in case of any peculiar conditions in hospitals. With cast-into-once deluxe plastic master telephone hosing, innovative summary fixed mode, complete information electronic summary and audio number reporting system,it has higher performance-cost ration than those products of the same variety. So far, two-wire and four-wire systems are available.

It consists of host,bed extension, corridor display, door lamp, secondary host as well as optional modules (including music, bathroom extension) for realizing some peculiar functions.
   

Superiority of Hospital Nurse Calling System:

Select-able: More beds quantity choices: 30, 50, 70, 110 beds.

Precision: Simultaneous calling of multiple extensions without omission. 
Credibility: ETR nurse call system provides reliable solutions for a wide range of customers including hospitals, care groups, health recovery center, nursing and residential homes.

Warranty: We offer a full year`s warranty, on going maintenance and provide the installation on-site if required.

Nurse Call System

Nurse Call System

Nurse Call System,Wired Nurse Call System,Nurse Calling System,Nurse Call Machine

Hunan Eter Electronic Medical Project Stock Co., Ltd. , http://www.centralgas.be