Wpływ średniołańcuchowych kwasów tłuszczowych (MCFA) na wyniki odchowu kurcząt rzeźnych

• Autorzy: Hejdysz M. , Wiaz M. , Jozefiak D. , Kaczmarek S. , Rutkowski A.

Warianty tytułu

EN

Effect of medium chain fatty acids (MCFA) on growth performance and nutrient utilization in broiler chickens

• Języki publikacji: PL

Abstrakty

PL

Celem przeprowadzonych badań było określenie wpływu dodatku średniołańcuchowych kwasów tłuszczowych jako potencjalnych stymulatorów wzrostu w żywieniu kurcząt rzeźnych. Doświadczenie przeprowadzono na 6 grupach ptaków, żywionych dietami z takim samym udziałem (0,85%) kwasu kapronowego, kaprylowego i kaprynowego oraz ich mieszaniny (33:33:33%). Pozostałe dwie grupy były kontrolne (negatywa, pozytywna). W grupie kontrolnej pozytywnej dieta zawierała dodatek kokcydiostatyku – salinomycyny, w ilości 70 mg/kg. W okresie od 1. do 35. dnia odchowu kwas kaprynowy wpłynął na zmniejszenie pobrania paszy przy jednoczesnym pogorszeniu przyrostów masy ciała kurcząt, w porównaniu do grupy kontrolnej pozytywnej, oraz polepszenie współczynnika konwersji paszy w okresie od 15. do 35. dnia i od 1. do 35. dnia w porównaniu do grupy kontrolnej negatywnej (P≤0,05). W przypadku kwasu kaprylowego i mieszaniny trzech kwasów organicznych stwierdzono identyczne statystyczne zależności odpowiadające grupie z dodatkiem salinomycyny we wszystkich okresach trwania doświadczenia (P≤0,05). Natomiast u kurcząt żywionych mieszanką z dodatkiem kwasu kapronowego stwierdzono pogorszenie współczynnika konwersji paszy, zarówno w okresie od 15. do 35. dnia, jak i od 1. do 35. dnia (P≤0,05). W przypadku innych parametrów nie stwierdzono statystycznie istotnych zależności (P≤0,05).

EN

The aim of this study was to determine the effect of medium chain fatty acids as potential growth promoters in feeding of broiler chickens. The experiment was conducted on 6 groups of birds fed the diets with the same proportions (0.85%) of caproic, caprylic and capric acids and their mixture (33:33:33%). The remaining two groups were controls (negative, positive). The positive control included an addition of coccidiostatic – salinomycin in the amount of 70 mg/kg. In the period from 1 to 35 days, capric acid resulted in reduction of feed intake and lower weight gain of chickens in comparison with the positive control and the improvement of feed conversion ratio in the periods from 15 to 35 and from 1 to 35 days of life in comparison with the negative control (P≤0.05). In the case of the caprylic acid and a mixture of three organic acids, identical statistical relations were observed in all periods of the experiment in the group supplemented with salinomycin (P≤0.05). In chickens fed the diets with caproic acid, deterioration of the feed conversion ratio in the period from 15 to 35 days and from 0 to 35 days of life was recorded (P≤0.05). No statistically significant correlations were found for other experimental parameters (P≤0.05).

• Wydawca: -
• Czasopismo: Roczniki Naukowe Polskiego Towarzystwa Zootechnicznego
• Rocznik: 2012
• Tom: 08
• Numer: 3
• Opis fizyczny: s.9-17,tab.,bibliogr.

Twórcy

autor

Hejdysz M.

• Katedra Żywienia Zwierząt i Gospodarki Paszowej, Uniwersytet Przyrodniczy w Poznaniu, ul.Wołyńska 33, 60-637 Poznań

autor

Wiaz M.

autor

Jozefiak D.

autor

Kaczmarek S.

autor

Rutkowski A.

Bibliografia

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PL

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