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petroleumnews.com - get the latest breaking news, showbiz & celebrity photos, sport news & rumours, viral videos and top stories from petroleumnews.com Daily Mail and Mail on Sunday newspapers.
Free-range pullets are reared indoors but the adult hens can go outside which is a mismatch that may reduce adaptation in the laying environment. Rearing enrichments might enhance pullet development and adaptations to subsequent free-range housing with impact on behavior and health measures including gut microbiota. Adult free-range hens vary in range use which may also be associated with microbiota composition. A total of 1700 Hy-Line Brown® chicks were reared indoors across 16 weeks with three enrichment treatment groups: ‘control’ with standard litter housing, ‘novelty’ with weekly changed novel objects, and ‘structural’ with custom-designed perching structures in the pens. At 15 weeks, 45 pullet cecal contents were sampled before moving 1386 pullets to the free-range housing system. At 25 weeks, range access commenced, and movements were tracked via radio-frequency identification technology. At 65 weeks, 91 hens were selected based on range use patterns (‘indoor� ....
Las mejores ofertas de la semana: polos Lacoste, Converse, Satisfyers, cafeteras, freidoras de aire... lavanguardia.com - get the latest breaking news, showbiz & celebrity photos, sport news & rumours, viral videos and top stories from lavanguardia.com Daily Mail and Mail on Sunday newspapers.