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Recommendation on the environmental management in broiler poultry

Serafín García Freire, Technical support manager of Bedson S.A.


temperature regulation

The main objective in the environmental management is that the thermal sensation that the birds feel, is comfortable for them.

Birds don’t feel the temperature that is on the thermometers. The thermal sensation of the birds depends on: temperature, humidity, heat loss from the feet contact to the cold floor and airspeed.

Temperature and Humidity

In the table, the ideal temperature and humidity for each age is shown in red.


Bird age, days Absolute values of air temperature depending on  relative humidity, oC*
40 % 50% 60 % 70 % 80 %
1 36,0 33,2 30,8 29,2 27,0
3 33,7 31,2 28,9 27,3 26,0
6 32,5 29,9 27,7 26,0 24,0
9 31,3 28,6 26,7 25,0 23,0
12 30,2 27,8 25,7 24,0 23,0
15 29,0 26,8 24,8 23,0 22,0
18 27,7 25,5 23,6 21,9 21,0
21 26,9 24,7 22,7 21,3 20,0
24 25,7 23,5 21,7 20,2 19,0
27 24,8 22,7 20,7 19,3 18,0


Heat loss from the feet contact to the cold floor

Floor temperature when the 1-day chicks reach the farm should be 28 °C. To heat up the floor to 28 °C, heating should be turned on 24 hours prior in summer and 36 hours prior in winter



When you are using the ventilation tunnel, you should remember that there is higher air velocity at the chicken’s height. The higher air velocity leads to the faster cooling of the thermal sensation of the birds.


Thermal sensation in broilers depending on the airspeed and age



Determination of the speed of the air flow along the slope of the candle flame


In conclusion…

How to evaluate that thermal sensation is comfortable for the birds?
Bird’s behavior is the best thermometer!


Behavior when too hot
Behavior when cold









Recommendations on the lighting regime on the modern broiler poultry farm

Serafin Garcia Freire, Technical support manager of the Bedson S.A.


Length of day light period

According to scientific literature, the length of light period to achieve the best poultry performance is:

  1. In the first week of life light in the poultry house must be working 23 hours for fostering the feed consumption. The more feed the birds eat this first week of life:
    • The faster the absorption of the yolk sac.
    • The longer the intestinal villi.
    • The higher the development of digestive enzymes
    • The larger the Bursa of Fabricius
  2. After the first week of life chickens need one constant dark period, in the middle of the night, for 4-5 hours dark. The main advantages of that light mode are less mortality, more harmonious growth and less FCR; Both proven in any slaughter weight but especially in high body weights (≥ 3 kg).

Pic. 1. Effect of daylight on the live body weight at 48-49 days (Schwean-lardner et al, 2010).


Pic. 2. Effect of daylight on feed to gain ration (mortality corrected) of broilers at 48-49 days (Schwean-lardner et al, 2010).


In previous years the program of continuous lighting  (24 hours light) was widely used, but it has following disadvantages: slow gain of body weight and increased FCR, frequents leg problems, higher spiking mortality, higher ascites, higher social stress so higher corticosterone levels in blood which means lower immune response. Today, according to European legislation «continuous lighting program” is forbidden due to animal welfare issues (Directive 2007-43-EC).


Light intensity

According to scientific literature, the light intensity to achieve the best poultry performance is:

  1. First week of lifeAs much as possible for fostering the food consumption. Minimum 25 lux, advisable 40-60 lux.
  2. After first week of life –10 lux is scientifically enough. When rearing chickens with little light intensity, birds are quieter, there is less energy expenditure in the movement and therefore there is more energy, from the feed, available for growth

Literature used:

Schwean-Lardner, K., B.I. Fancher, and H.L. Classen. Effect of daylength on physiological and behavioural rhythms in broilers // Poult. Sci. 2010. —  89 (Supp.1). – P. 521.

The employees of LLC «MedoproVet» participated in the VII International Veterinary Congress

From April 19th to 21st head of Veterinary department Konkin Kirill and sales representative Stepanov Maxim took part in VII International veterinary congress “Common world-common health” held in Ufa.

This is an annual veterinary forum organized by the Russian Veterinary Association under the sponsorship of the World Organization for Animal Health (OIE) with the participation of the Ministry of Agriculture of the Russian Federation and the Federal Service for Veterinary and Phytosanitary Surveillance.


The Congress is the platform for holding of the plenary session, conferences, seminars, roundtables, and the exhibition of the latest veterinary equipment, pharmaceutical products, and specialized literature.

The Congress was attended by over 1200 professionals. Among them, highly professional Russian and foreign experts on infectious and non-infectious diseases of farm animals, the representatives of the administration of veterinaries of Russia, Germany, Spain, Denmark, Austria, Belgium, Poland, China, USA and other countries, as well as representatives of major livestock business.

The focus was on the epidemic situation in the world and new methods of diagnostic and treatment of animal diseases. The experience of Russian regions on the prevention of African swine fever and rabies was also widely covered. Also was mentioned the registered decrease in rabies disease and brucellosis, but a sharp increase in avian influenza and African swine fever, due to which in 23 regions of Russia in 2016th,  were destroyed 233 thousands of swine in 10 largest swine complexes

LLC MedoproVet took part in the course of lectures for veterinarians and stock breeders

In April 2017th MedoproVet took part in the course of lectures for veterinarians and stock breeders, organized for the enterprises of the dairy industry of the Udmurtia Republic and the Kirov region by the chief veterinary department of the Udmurtia Republic.

LLC MedoproVet was represented by Konkin Kirill the head of Veterinary division with his lecture on “Imprinting Plus instead and in addition to colostrum”. In addition, the event discussed issues related to the reproduction of the herd and the preservation of the livestock of calves.

LLC MedoproVet have participated in the XXII International Industrial Trade Fair “MVC: Cereals – Mixed Feed – Veterinary 2017”


Annual exhibition “MVC: Cereals – Mixed Feed – Veterinary” since 1996 traditionally takes place in Moscow at VDNKh, and is among the biggest agricultural forums and enjoys well-deserved recognition among the experts.  From 2011th exhibition is supported by The European Feed Manufacturers’ Federation (FEFAC).

This year exhibition was attended by 430 companies from 27 countries and 46 regions of the Russian Federation.

From January 31st to February 2nd  we had guests and clients at our booth, and displayed to them veterinary products and feed additives for cattle, poultry and swine.

Overall, at the “MVC: Cereals – Mixed Feed – Veterinary 2017” staff  of LLC MedoproVet conducted a large number of negotiations and established new contacts for successful cooperation in the future. Visitors to the booth were experts from Russia, Kazakhstan, Ukraine, Belarus, Uzbekistan, Tajikistan and other countries.

If you were unable to visit our booth, we would be happy to answer any of your questions by phone: +7 (499) 350-25-78, +7 (495) 710-77-25, email  or through the contact form at out website in the «Контакты» section.