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Hungarian goose production and gene conservation practices have been a tradition in Hungary for several centuries. The old Hungarian geese can only be effectively maintained if the national programs can identify economic uses of the breed. This study aimed to examine the potential use of the Hungarian landrace goose (HL) either as a purebred or crossbred with the Hungarian Upgraded breed (HU). Crossbred offspring were produced by HL ganders and HU layers, as egg production of HL layers is very low. Reproduction traits (egg production, fertility and hatchability) of parent stocks, body weight gain, feed consumption and slaughter values (slaughter loss, breast and thigh weight and proportions) and of offspring were measured. The results showed that fertility in the crossbred geese was insignificant compared to the fertility of HL purebreds, while hatchability of crossbreds was higher than that of purebred HL or HU. HL offspring had significantly lower body weight and weight gain, and a higher feed conversion rate than HU. The proportion of valuable meat parts (breast and thigh) was the highest in HU while weight in slaughter loss was also the highest in HU. In terms of body weight, feed conversion rate and slaughter properties, crossbred offspring showed intermediate inheritance. HL is recommended for crossbreeding with HU breeds and their offspring should be reared under Research Centre for Farm Animal Gene Conservation (HáGK), H-2100 Gödöllő, Isaszegi út 200., Hungary; Association for Hungarian Farm Animal Gene Conservation (MGE), H-2100 Gödöllő, Isaszegi út 208., Hungary Association for Hungarian Farm Animal Gene Conservation (MGE), H-2100 Gödöllő, Isaszegi út 208., Hungary Email: bodi.laszlo@hagk.hu Received date: 09 May 2019; Revised date: 22 February 2019; Accepted date: 21 August 2019 free-range keeping conditions.

GENE CONSERVATION PRACTICE AND PRODUCTION OF OLD HUNGARIAN GOOSE BREEDS