Effect of duck genotype on leg muscle properties

Abstract

Abstract. The research objective was to compare the nutritive value and some functional properties of duck leg muscles from different flocks. A total of 80 drakes out of three conservative flocks (cross-breeds Pekin type – SB, Miniduck – K2, Pekin originated from Danish Pekin duck – P8) and one maternal breeding strain (P66) aged seven weeks, were used for comparison. The content of protein, lipids, moisture, essential amino acids, fatty acids and cholesterol were estimated. The investigation of functional properties has covered: the determination of the colour parameters – L*, a* b*, colour difference between individual flocks, total haem pigments’ content, sensory evaluation of raw muscles’ colour intensity in 10 point scale; pH24; water holding capacity; cooking loss and shear force. Comparing the basic chemical and amino acid composition, cholesterol content and profile of fatty acids, it could be concluded that the P66 leg muscles coming from a selected breeding strain, are the most favourable from the nutritional point of view. It is evident too, that muscles from all the examined flocks have been characterized by a high nutritional value. Taking into consideration the functional properties, it was concluded that the muscles from the investigated flocks varied in colour and analysed traits. The ducks of K2 had the best functional properties. The advantages of K2 in comparison to the other ducks are: darker colour typical of waterfowl meat, lower cooking loss, higher water holding capacity and lower shear force.

Effects of 16L : 8D photoperiod on growth performance, carcass characteristics,meat composition, and blood parameters of Pekin ducks

“…The protein content in the investigated breast muscles was slightly higher than that determined by Witak et al (27) for the A44 genotype, and by Ali et al (25) for the Cherry Berry genotype. In comparison to our results obtained for Pekin ducks, considerably lower thigh protein content was reported for the crossbred Pekin Type-SB (26). The ash content of breast meat in the present study was similar to that determined by Wawro et al (18) for the A44 genotype and higher than that determined by Ali et al (25) for the Cherry Berry genotype.…”

“…The ash content of breast meat in the present study was similar to that determined by Wawro et al (18) for the A44 genotype and higher than that determined by Ali et al (25) for the Cherry Berry genotype. Wołoszyn et al (26) stated that the variations in meat composition concerning the basic chemicals traits of duck meat (e.g., fat and protein) depended on the genotype of the flock; therefore, the differences between our results and other studies were caused by the genotype of the ducks. Sex did not affect thigh meat composition, except for ash content of thigh meat.…”

Fatty acid composition of muscle and adipose tissue of indigenous Polish geese breeds

“…In the present study, the PUFA n-6/n-3 ratio in lipids ranged from 8.59 -Rypińska (leg muscle) to 9.08 -Garbonosa (breast muscle) lipids and from 12.94 (Rypińska) up to 13.42 (Garbonosa) in adipose tissue lipids and they were higher than the recommended value of human diets by the above mentioned authors. In spite of ducks' meat the n-6/n-3 PUFA ratio was evidently lover and amounted for K2 (Miniducks) and SB (cross-breeds of ducks from three conservative groups A1, A2 and A3) than obtained for investigated breeds of geese -5.84 and 4.17, respectively (Wołoszyn et al 2011). Similar value of n-6/n-3 PUFA ratio to the stated in the present study was obtained by Has-Schön et al (2008) for breast muscle from the 19th week of age turkeys of Nicholas 700 breed (n-6/n-3=8.05), fed feed with added ≈ 3.0 % of the total meal weight commercial preparation Bergafat (Berg+Schmidt GmbH & Co. KG, Hamburg, Germany) (30-44 % of saturated fatty acids, 35-45 % monounsaturated fatty acids and less than 4 % of arachidonic acid (C 20:0) as well as other fatty acids with 20 or more carbon atoms).…”

The effect of feeding with hemp and Camelina cakes on the fatty acid profile of duck muscles

“…By supplementation of duck feeds with 1-1.6 % rapeseed oil, researchers reported α-linolenic (C18 : 3n-3) (ALA) 1-1.62 % content and n-6 / n-3 (3.27-5.23) ratios in the breast muscles of ducks (Woloszyn et al, 2005(Woloszyn et al, , 2006(Woloszyn et al, , 2011. Rapeseed oil in the feed for ducks was beneficial to human health due to better intramuscular fat composition of meat.…”