Carcass and meat quality of dual-purpose chickens (Lohmann Dual, Belgian Malines, Schweizerhuhn) in comparison to broiler and layer chicken types

Mueller, S; Kreuzer, M; Siegrist, M; Mannale, K; Messikommer, R.E.; Gangnat, Isabelle Diane Marie (2018). Carcass and meat quality of dual-purpose chickens (Lohmann Dual, Belgian Malines, Schweizerhuhn) in comparison to broiler and layer chicken types Poultry Science, 97(9), pp. 3325-3336. Elsevier 10.3382/ps/pey172

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Currently, there is an intensive ethical discussion about the practice of culling day-old layer cockerels. One solution to avoid this practice could be using dual-purpose types, where males are fattened for meat and females used for egg production. The aim of the present study was to compare fattening performance, carcass conformation, and composition as well as meat quality of Lohmann Dual, a novel dual-purpose type, and 2 traditional dual-purpose types (Belgian Malines and Schweizerhuhn) with 2 broiler types and 1 layer type (Lohmann Brown Plus). Broilers included a conventional line (Ross PM3) and a slower-growing line (Sasso 51) fulfilling requirements of organic farming. Nine birds of each type were fed on a conventional broiler diet. Feed intake and metabolizability of nitrogen and energy were recorded per pen (n = 3), the latter through excreta sampling. For each bird, carcass conformation was assessed, and weights of body, carcass, breast meat, legs, wings, and inner organs were determined. Additionally, breast angle, an indicator for carcass appeal, and skin color were recorded. Meat quality assessment included determinations of thaw and cooking loss, shear force, meat color, and proximate composition of the breast meat. None of the dualpurpose types (20 to 30 g ADG) performed as well in growth as the intensively growing broiler line (68 g ADG). However, Lohmann Dual could compete with the slower-growing broiler line (slower growth but better feed efficiency, similar in carcass weight and breast proportion). Also breast angle was quite similar between Lohmann Dual (100◦) and the extensive broiler type (115◦C) compared to the intensive broiler line (180◦). Meat quality was most favorable in the intensive broilers with the smallest shear force and thawing loss, whereas meat quality was not different between the other types. The Schweizerhuhn performed only at the level of the layer hybrid, and the Belgian Malines was ranked only lightly better.

Item Type:	Journal Article (Original Article)
Division/Institute:	School of Agricultural, Forest and Food Sciences HAFL School of Agricultural, Forest and Food Sciences HAFL > Agriculture School of Agricultural, Forest and Food Sciences HAFL > Agriculture > Livestock and Horses
Name:	Mueller, S; Kreuzer, M; Siegrist, M; Mannale, K; Messikommer, R.E. and Gangnat, Isabelle Diane Marie
Subjects:	S Agriculture > SF Animal culture
ISSN:	00325791
Publisher:	Elsevier
Language:	English
Submitter:	Isabelle Diane Marie Gangnat
Date Deposited:	09 Mar 2022 13:44
Last Modified:	09 Mar 2022 13:44
Publisher DOI:	10.3382/ps/pey172
Uncontrolled Keywords:	carcass conformation, chicken type, culling, dual-purpose, growth performance
ARBOR DOI:	10.24451/arbor.16070
URI:	https://arbor.bfh.ch/id/eprint/16070