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Volume 61, issue 3 | Copyright
Arch. Anim. Breed., 61, 373-378, 2018
https://doi.org/10.5194/aab-61-373-2018
© Author(s) 2018. This work is distributed under
the Creative Commons Attribution 4.0 License.

Original study 30 Sep 2018

Original study | 30 Sep 2018

Digestive tract morphometry and breast muscle microstructure in spent breeder ducks maintainedin a conservation programme of genetic resources

Dariusz Kokoszyński1, Mohamed Saleh2, Zenon Bernacki1, Marek Kotowicz3, Małgorzata Sobczak3, Joanna Żochowska-Kujawska3, and Kamil Stęczny1 Dariusz Kokoszyński et al.
  • 1Department of Animal Sciences, Faculty of Animal Breeding and Biology, UTP University of Science and Technology, Mazowiecka 28, 85-084 Bydgoszcz, Poland
  • 2Department of Poultry and Animal Production, Faculty of Agriculture, Sohag University, Street Nasser City, 82524 Sohag, Egypt
  • 3Department of Meat Science, Faculty of Food Sciences and Fisheries, West Pomeranian University of Technology, Kazimierza Królewicza 4, 71-550 Szczecin, Poland

Abstract. The objective of this study was to compare three genetic groups of ducks: P9 (French Pekin), K2 (bred from wild mallards – Anas platyrhynchos L. and Pekin duck), and KhO1 (hybrid of Khaki Campbell drake and Orpington Fauve duck) after two breeding seasons for body weight and length, length of intestine and its segments, percentage of other internal organs, and breast muscle microstructure. The study used 60 ducks, 20 birds (10 males and 10 females) from each genetic group. At 110 weeks of age, P9 ducks exhibited significantly (p<0.05) greater body weight and length, and length of intestine and its segments (except for colon length) compared to K2 and KhO1 ducks. KhO1 ducks had significantly shorter jejunum and ileum compared to K2 birds. The lighter K2 and KhO1 ducks had significantly greater relative length of intestine and its segments. In P9 ducks, liver, heart, and gizzard were heavier and spleen percentage in body weight significantly lower than in K2 and KhO1 birds. KhO1 ducks had a significantly higher percentage of proventriculus compared to the other duck groups. The different genetic origins of the ducks had no effect on microstructural characteristics of m. pectoralis superficialis except for perimysium and endomysium thickness. Our study provided information about differences in the digestive tract morphometry and breast muscle microstructure of ducks from three genetic groups after two reproductive seasons, which are maintained in a conservation programme of genetic resources in Poland.

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The results of digestive tract morphometry and breast muscle microstructure in P9, K2, and KhO1 ducks after two reproductive seasons were presented for the first time. Duck genotype had a significant effect on body weight, body length, length of the intestine and its segments, and some other internal organ traits. The different origin of the birds had no influence on the microstructural characteristics of the superficial pectoral muscle, except for perimysium and endomysium thickness.
The results of digestive tract morphometry and breast muscle microstructure in P9, K2, and KhO1...
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