Volume: 2, 2023
2nd International PhD Student’s Conference at the University of Life Sciences in Lublin, Poland:
ENVIRONMENT – PLANT – ANIMAL – PRODUCT
Abstract number: A018
DOI: https://doi.org/10.24326/ICDSUPL2.A018
Published online: 19 April 2023
ICDSUPL, 2, A018 (2023)
Micronized oilseeds in feed mixtures and the quality of poultry meat
Szymon Milewski1*, Bożena Kiczorowska1, Wioletta Samolińska1, Julia Fabjanowska1, Renata Klebaniuk1, Magdalena Moczulska1
1 Institute of Animal Nutrition and Bromatology, Faculty of Animal Sciences and Bioeconomy, University of Life Sciences in Lublin, Akademicka 13, 20-950 Lublin, Poland
* Corresponding author: szymon.milewski@up.lublin.pl
Abstract
One of the ways to modify the chemical composition of broiler chicken muscles is by using high-quality raw fat sources in feed, such as flaxseed, linseed, and sunflower. To improve the nutritional value of feed, the feed industry uses modern processing methods, such as micronization. The aim of the study was to determine the effect of adding irradiated flaxseed, linseed, or sunflower seeds to the diet of broiler chickens on the quality of chickens’ meat fat. The hypothesis was that the introduction of micronized oily plant seeds into broiler feed mixtures would improve the nutritional and dietary quality of breast and leg muscles. The study involved 200 broiler chickens divided into 4 groups: 1 control (C) and 3 experimental (IR.F., IR.C., IR.S). In the experimental groups, 15% micronized flaxseed (IR.F.), linseed (IR.C.), or sunflower (IR.S.) seeds were added to the mixtures. The fatty acid profile was determined in the birds’ muscles. The addition of micronized oily plant seeds into the mixtures resulted in an increase (P <0.05) in the content of PUFA (polyunsaturated fatty acids) in the breast and thigh muscles compared to the control group. Favorable modifications of the fatty acid composition were observed in the breast muscles of groups IR.C and IR.S., and in the thigh muscles of chickens from the IR.F. group. These changes were mainly influenced by linoleic acid (C18:2) and linolenic acid (C18:3). At the same time, a decrease (P <0.05) in the proportion of SFA (saturated fatty acids) was found in the muscle of chickens in the breast (IR.S, IR.C., IR.S) and thigh (IR.F.) groups compared to the control. The reduction in the amount of SFA was mainly due to a decrease (P <0.05) in the proportion of palmitic acid (C:16), especially in the muscles of chickens fed mixtures with irradiated linseed (IR.F). In all the chicken muscles (IR.S, IR.C., IR.S), an improvement (P <0.05) in the ratio of n-3 to n-6 fatty acids was observed compared to the control. The addition of 15% micronized flax, linseed, and sunflower seeds to the feed mixtures of broiler chickens improved the nutritional and dietary value of breast and thigh muscles in terms of fat quality. The meat of experimental chickens was characterized by an increased share of polyunsaturated fatty acids (PUFA) and a decreased share of saturated fatty acids (SFA) in the pool of fatty acids. The ratio of n-3 to n-6 fatty acids approached the recommended level of 1:5 by dieticians.
How to cite
S. Milewski, B. Kiczorowska, W. Samolińska, J. Fabjanowska, R. Klebaniuk, M. Moczulska, 2023. Micronized oilseeds in feed mixtures and the quality of poultry meat. In: 2nd International PhD Student’s Conference at the University of Life Sciences in Lublin, Poland: Environment – Plant – Animal – Product. https://doi.org/10.24326/ICDSUPL2.A018