Influence des conditions d'élevage de l'oie sur la production de foie gras et de viande
| Autor: | Gérard Guy, Hervé Juin, D. Rousselot-Pailley, Elisabeth Baéza, Marie Rose Salichon |
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| Přispěvatelé: | ProdInra, Migration, Palmipèdes à Foie Gras (UEPFG), Institut National de la Recherche Agronomique (INRA), Unité de Recherches Avicoles (URA), Unité des monogastriques, Revues Inra, Import |
| Jazyk: | francouzština |
| Rok vydání: | 1998 |
| Předmět: |
2. Zero hunger
0303 health sciences Veterinary medicine geography geography.geographical_feature_category biology Fatty liver 0402 animal and dairy science [SDV.SA.ZOO]Life Sciences [q-bio]/Agricultural sciences/Zootechny 04 agricultural and veterinary sciences medicine.disease 040201 dairy & animal science Pasture Breast muscle 03 medical and health sciences Goose [SDV.SA.SF]Life Sciences [q-bio]/Agricultural sciences/Silviculture forestry biology.animal medicine Animal Science and Zoology [SDV.SA.SF] Life Sciences [q-bio]/Agricultural sciences/Silviculture forestry [SDV.SA.ZOO] Life Sciences [q-bio]/Agricultural sciences/Zootechny ComputingMilieux_MISCELLANEOUS 030304 developmental biology |
| Zdroj: | Annales de zootechnie Annales de zootechnie, INRA/EDP Sciences, 1998, 47, pp.215-224 Annales de zootechnie, INRA/EDP Sciences, 1998, 47 (3), pp.215-224 |
| ISSN: | 0003-424X |
| Popis: | Influence of goose breeding conditions on the meat and fatty liver production. Under natural breeding conditions, goslings hatch in spring. Unfortunately, the most important market occurs at the end of the year. It would be interesting if the growing period could be exten- ded without introducing a large increase in feed costs. The effects of such a farming system on the production of fatty liver and meat was explored in an experiment involving three different far- ming and feeding styles. A group of 240 goslings, which hatched on 23 April, were raised iden- tically until attaining 8 weeks of age. At this time one half (group 1 ) was given access to a pas- ture. Their diet was complemented with corn. The other half (group 2) received a daily allotment of a finishing feed, and did not have access to the pasture. A third group of 120 goslings hatched 10 weeks after the first two, and was raised in the same manner as group 2 until they were 14 weeks old. At this time, all three groups of goslings entered the force-feeding period. The birds from group 1 had weights pre-force-feeding, during force-feeding, and at slaughter that were significantly hea- vier than those of the birds from group 2, which, in turn, were greater than those of group 3. The liver weights were also significantly different: 984, 848, and 725 g for groups 1, 2 and 3, res- pectively. These differences were no longer significant, however, after the livers were treated (final weights: 606, 595, and 573 g, respectively). The weights of the meat (breast muscle) cuts were also significantly different: 305, 259, and 236 g, respectively. Raising goslings on pasture, there- fore, makes it possible to produce better fatty liver and meat than traditional methods (such as those used for group 3). The feed costs are nearly identical (group 1 is 8% higher than group 3). The costs for group 2, which did not have access to pasture, however, were much greater (50%). (© Else |
| Databáze: | OpenAIRE |
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