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EFFECTS OF BLENDING AND INCLUSION LEVEL OF SOY OIL AND ITS ACIDULATED SOAPSTOCK ON BROILER PERFORMANCE
Seyed Davood Sharifi
; College of Aboureihan, University of Tehran, Iran
A. Afzalzadeh
; College of Aboureihan, University of Tehran, Iran
F. Bitaraf
; College of Aboureihan, University of Tehran, Iran
M. Hashemi
; Agricultural Research Center of Qom Provaince, Qom, Iran
Sažetak
This study was conducted to investigate the effect of diets containing blends of soy oil and its acidulated soapstock on broiler performance. Six hundred 7–day-old Ross broiler chicks were assigned to factorial arrangement (2×5) with 2 levels of oil (3 , 6%) and 5 blends of soy oil and its soapstock (100:0, 75:25, 50:50, 25:75 and 0:100) with 4 replicates in a completely randomized design . The levels of inclusion of fat in diets had a significant effect on feed intake and feed conversion ratio(FCR), and birds fed diets containing 3% of fat had higher weight gain and better FCR (P<0.05). Weight gain and feed conversion ratio were significantly (P<0.05) affected by the blending ratio of soy oil and its acidulated soapstock. The soy oil: soapstock ratio of 0:100, in diet resulted in significantly lower weight gain, but there were not any significant differences between other blending ratios on weight gain and FCR. The interaction effects of fat levels× blending ratio of soy oil and its acidulated soapstock were significant on weight gain and FCR in the whole rearing period. The weight gain of birds receiving diets containing 6% of fat with the 0:100 (soy oil: soapstock) were significantly lower (P < 0.05) than those in the other treatments. It was concluded that the acidulated soy oil soapstock could be used as an energy source in broiler diets, and the soy oil replaced witht its soapstock by 75% in the whole rearing period.
Ključne riječi
broiler; acidulated soapstock; fat; soybean oil
Hrčak ID:
60605
URI
Datum izdavanja:
15.8.2010.
Posjeta: 1.323 *