Wpływ systemu ogrzewania na wyniki produkcyjne oraz zapalenie skóry podeszwy stopy kurcząt brojlerów

• Autorzy: Michalczuk M. , Damaziak K. , Pietrzak D. , Zbikowski A. , Berebecka E.

Warianty tytułu

EN

The influence of heating systems on the production results and foot pad dermatitis of broiler chickens

• Języki publikacji: PL

Abstrakty

PL

Celem pracy było określenie wpływu systemu ogrzewania kurnika na wyniki produkcyjne kurcząt oraz jakość skóry podeszwy stopy. Badania przeprowadzono na 41 900 kurczętach Cobb 500, podzielonych w zależności od systemu ogrzewania budynku na dwie grupy: kontrolną – kurczęta odchowywano w hali z centralnym systemem ogrzewania oraz doświadczalną – kurczęta utrzymywano w hali z ogrzewaniem mieszanym, tzn. zastosowano wspomaganie ogrzewania gazowego ogrzewaniem centralnym. W czasie odchowu kontrolowano warunki zoohigieniczne panujące w halach oraz wyniki produkcyjne stad. Na 5 dni przed ubojem do badań wybrano 200 ptaków z różnych miejsc na halach w celu przeprowadzenia wizualnej oceny jakości skóry podeszwy stóp kurcząt. Wykazano wpływ systemów ogrzewania na różnice wilgotności panujące w budynkach oraz wzrost emisji amoniaku po 21. dniu odchowu w grupie kontrolnej. W grupie doświadczalnej uzyskano poprawę wyników produkcyjnych (większą masę ciała oraz lepsze wykorzystanie paszy na kilogram przyrostu masy ciała, a przez to wyższy wskaźnik EWW). Poprawa mikroklimatu w hali doświadczalnej pozwoliła na ograniczenie zapalenia skóry podeszwy stopy.

EN

One of the factors influencing the performance of broiler chicken production is to ensure proper temperature and humidity in the house. Zoohygienic conditions prevailing in the building as well as the quality of the bedding depend to a large extent on the type of heating. Incorrect litter quality can lead to Foot Pad Dermatitis (FPD), which is a big problem in the great scale production of broiler chickens. The aim of this study was to determine the effect of heating system of a chicken house on performance and quality of the skin of foot pads in chickens. The study was conducted on 41 900 chickens Cobb 500 line, divided into two groups depending on the heating system used in building during rearing. Central heating system for chickens from control group and mixed heating system (gas heating and central heating) for experimental group of chickens were used. Zoohygienic conditions inside the house and the production results of chickens were controlled. 5 days before slaughter 200 birds were selected randomly from different places in the building for detailed evaluation of the quality of the skin of the foot pads. The influence of the heating systems on the humidity level in buildings and increase of ammonia emissions after 21 days of rearing in the control group was confirmed. Throughout the period of chickens rearing, the documentation of dead birds autopsy was conducted and there were defined reasons for their culling. The results showed no effect of the heating system used on mortality of the chickens; the difference was only 0.03 percentage point. In the experimental group production results of chickens (increased body weight and decreased feed converse ratio, and the higher values of the European Broiler Index – EBI) was confirmed. The influence of the heating system on the result of FPD was stated; the best quality of the feet sole skin was observed in the group of chickens kept in a building with a mixed system of heating. It In this group fewer cases of skin defects of the foot sole, which are rated as 4 and 5 degree of quality, were found. Improved gas heating system did not affect the increase in litter moisture and deterioration of zoohygenic conditions in the building. Air monitoring results did not reveal the presence of hydrogen sulfide during the entire production cycle, and carbon dioxide levels did not exceed 2500 ppm. The test results clearly show, that in the national climatic conditions, using a combination of gas and central heating of the halls, where rearing of broiler chickens takes place, leads to a reduction in defects of the foot sole skin of the birds.

• Wydawca: -
• Czasopismo: Zeszyty Problemowe Postępów Nauk Rolniczych
• Rocznik: 2014
• Tom: 579
• Opis fizyczny: s.59-66,rys.,tab.,bibliogr.

Twórcy

autor

Michalczuk M.

• Szkoła Główna Gospodarstwa Wiejskiego w Warszawie, Warszawa

autor

Damaziak K.

• Szkoła Główna Gospodarstwa Wiejskiego w Warszawie, Warszawa

autor

Pietrzak D.

• Szkoła Główna Gospodarstwa Wiejskiego w Warszawie, Warszawa

autor

Zbikowski A.

• Szkoła Główna Gospodarstwa Wiejskiego w Warszawie, Warszawa

autor

Berebecka E.

• Szkoła Główna Gospodarstwa Wiejskiego w Warszawie, Warszawa

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