In 15 layers farms, l0 with traditional cages (total hens=n.690,737), 4 with enriched cages (hens=n. 688,929), and 1 with slat floor (hens=n. 14,498), egg production,FCR, and mortality were compared during a whole cycle (54-56 weeks). Hybrid line, origin of pullets, and hygienic situation were the same in all the farms. On the average, in layers kept in cages the number of eggs was higher in the enriched cages (320.84 Vs 314.16 respectively), FCR was the same (2.024 Vs 2.046), while the mortality rate was higher in traditional cages (7.49 Vs 5). ln a single farm whith the layers kept on slat floor the performance were worse than the cages, but the mortality rate was good (5%).
Confronto tra diverse tipologie di allevamento delle gallina ovaiola commerciale / P. Guarneri, S. Zuccarello, D. Gallazzi, G. Grilli. - 51:(2012), pp. 287-297. (Intervento presentato al 51. convegno Convegno annuale della Società italiana di patologia aviare tenutosi a Salsomaggiore Terme nel 2012).
Confronto tra diverse tipologie di allevamento delle gallina ovaiola commerciale
D. GallazziPenultimo
;G. GrilliUltimo
2012
Abstract
In 15 layers farms, l0 with traditional cages (total hens=n.690,737), 4 with enriched cages (hens=n. 688,929), and 1 with slat floor (hens=n. 14,498), egg production,FCR, and mortality were compared during a whole cycle (54-56 weeks). Hybrid line, origin of pullets, and hygienic situation were the same in all the farms. On the average, in layers kept in cages the number of eggs was higher in the enriched cages (320.84 Vs 314.16 respectively), FCR was the same (2.024 Vs 2.046), while the mortality rate was higher in traditional cages (7.49 Vs 5). ln a single farm whith the layers kept on slat floor the performance were worse than the cages, but the mortality rate was good (5%).Pubblicazioni consigliate
I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.