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Milk production and lactation curves of Bianca Val Padana and Italian Friesian dairy cows in relation to the management system

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Author(s): Alberto Sabbioni | Valentino Beretti | Luigi Tardini | Sandra Vezzali | Valerio Paini | Paola Superchi

Journal: Italian Journal of Animal Science
ISSN 1594-4077

Volume: 11;
Issue: 2;
Start page: e26;
Date: 2012;
Original page

Keywords: Cattle | Milk | Bianca Val Padana | Italian Friesian | Lactation curves

ABSTRACT
The aim of this study was to evaluate milk production and lactation curve parameters of Bianca Val Padana (BVP) and Italian Friesian (IF) cattle reared in the same herds in relation to different housing-feeding systems. Therefore, 8488 test-day records of 103 BVP and 367 IF cows from 7 herds were used; 2 herds had free stalls and total mixed ration feeding (FS-TMR group) and 5 had tie stalls and traditional feeding (TS-TF group). Data for milk production (kg), fat, protein, lactose production (kg) and content (%), and somatic cell score (SCS) were submitted to analysis by ANOVA, using a model with breed, housingfeeding type, test day, herd within housingfeeding type, season of calving, lactation number, class of days in milk, and two- and threeway interactions as fixed factors. A mixed model according to Wood’s equation in linear form was also performed. Interactions between breed and type of housing-feeding were always significant (P

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