0.857
IF5
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IF
Q3
JCR
0.92
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MNiSW
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ICV
ORIGINAL PAPER
 
CC-BY 4.0
 
 

Effects of dietary soyabean, rapeseed and linseed oils on performance, slaughter yield and fatty acid profile of breast meat in turkeys

J. Jankowski 1  ,  
P. Zduńczyk 2,  
D. Mikulski 1,  
M. Mikulska 1,  
 
1
University of Warmia and Mazury in Olsztyn, Department of Poultry Science, Oczapowskiego 5, 10-718 Olsztyn, Poland
2
Institute of Animal Reproduction and Food Research, Polish Academy of Sciences, Tuwima 10, 10-747 Olsztyn, Poland
J. Anim. Feed Sci. 2012;21(1):143–156
Publish date: 2012-03-12
KEYWORDS
ABSTRACT
The objective of this study was to determine the physiological effect of supplementing turkey diets with different vegetable oils, i.e. soyabean (S) oil, rapeseed (R) oil and linseed (L) oil, which have different concentrations of polyunsaturated fatty acids (PUFA). The total contents of n-6 PUFA and n-3 PUFA were as follows: diet S, 49.7 and 7.02%, diet R, 33.0 and 7.96%, and diet L, 30.3 and 30.6%; the n-6/n-3 PUFA ratio was 7.3, 4.4 and 1.0, respectively. The experimental materials comprised four groups of turkey hens (14 replications of fifteen birds each). The amount of dietary oil supplementation was increased from 2% in the first four weeks to 6% at the final stage of fattening (14-15 weeks). The apparent total tract digestibility of crude fat in 7-week-old turkeys (2.5% oil in diet) ranged from 89.9 to 91.1%, and showed no statistically significant differences. Dressing percentage, breast, thigh, and drumstick muscle contents did not differ among groups. Group L had a significantly higher intestinal fat weight (0.84% body weight (BW)) than the other groups (0.60-0.62%). In comparison with diet S, diets R and L contributed to a significant decrease in the levels of saturated fatty acids (from 32.9% to 30.3 and 30.2%) in breast meat lipids. In group L turkeys, the share of PUFA in total fatty acids in breast meat lipids was significantly higher (37.3% vs 29.4 and 27.1% in groups S and R, respectively), and the n-6/n-3 PUFA ratio was significantly lower (1.2 vs 5.6 and 5.1). As for the performance indices (final BW, feed conversion ratio), both rapeseed and linseed oils could be recognized as comparable alternatives to soyabeen oil (in both cases P>0.05 vs S group). However, the highest final BW followed the dietary treatment with linseed oil (P<0.05 vs group R).
CORRESPONDING AUTHOR
J. Jankowski   
University of Warmia and Mazury in Olsztyn, Department of Poultry Science, Oczapowskiego 5, 10-718 Olsztyn, Poland
 
CITATIONS (6):
1. Effect of Different Dietary n-6 to n-3 Fatty Acid Ratios on the Performance and Fatty Acid Composition in Muscles of Broiler Chickens
G. P. Mandal, T. K. Ghosh, A. K. Patra
Asian-Australasian Journal of Animal Sciences
2. Inclusion of flaxseed in turkey diets decreases the n-6/n-3 PUFA ratio and increases the proportion of biologically active EPA and DHA without affecting meat quality
Jan Jankowski, Zenon Zdunczyk, Dariusz Mikulski, Jakub Naczmanski, Jerzy Juskiewicz, Agnieszka Troszynska, Bogdan A. Slominski
European Journal of Lipid Science and Technology
3. Fatty acid profile, oxidative stability, and sensory properties of breast meat from turkeys fed diets with a differentn-6/n-3 PUFA ratio
Jan Jankowski, Zenon Zdunczyk, Dariusz Mikulski, Jerzy Juskiewicz, Jakub Naczmanski, Janusz F. Pomianowski, Przemysław Zdunczyk
European Journal of Lipid Science and Technology
4. Modification of the lipid profile and antioxidant status of the blood plasma of turkey hens fed mixtures with raw or extruded linseed
A. Czech, K. Ognik, M. Laszewska, E. Cholewińska, A. Stępniowska
Journal of Animal Physiology and Animal Nutrition
5. Fatty acid profile, oxidative stability and sensory quality of breast meat from turkeys fed diets with graded levels of flaxseed oil for different periods of time
Jan Jankowski, Zenon Zduńczyk, Dariusz Mikulski, Jerzy Juśkiewicz, Janusz F. Pomianowski, Przemysław Zduńczyk
Animal Production Science
6. Antioxidant status of blood and liver of turkeys fed diets enriched with polyunsaturated fatty acids and fruit pomaces as a source of polyphenols
J. Jankowski, J. Juśkiewicz, P. Zduńczyk, M. Kosmala, H. Zieliński, Z. Antoszkiewicz, Z. Zduńczyk
Polish Journal of Veterinary Sciences
ISSN:1230-1388