Effect of feeding environment on performance, injuries and behaviour in growing-finishing pigs: group-based studies

• Published in: Acta agriculturae Scandinavica. Section A, Animal science Vol. 50; no. 4; pp. 237 - 249
• Main Authors: Botermans, J.A.M, Svendsen, J. (SLU, Alnarp (Sweden))
• Format: Journal Article
• Language: English
• Published: Taylor & Francis Group 01-12-2000
• Subjects: AGGRESSIVE BEHAVIOUR; ANIMAL COMPETITION; BATEAS; CARCASS COMPOSITION; CERDO; COMPETICION ANIMAL; COMPETITION ANIMALE; COMPORTAMIENTO AGRESIVO; COMPORTEMENT AGRESSIF; COMPOSICION DE LA CANAL; COMPOSITION DE LA CARCASSE; ENGORDE; ENGRAISSEMENT; FATTENING; FEED INTAKE; FEEDING SYSTEMS; GAIN DE POIDS; GANANCIA DE PESO; GROWTH RATE; INDICE DE CRECIMIENTO; INGESTION DE PIENSOS; LESION; LESIONES; LESIONS; MANGEOIRE; MEAT YIELD; PORCIN; PRISE ALIMENTAIRE (ANIMAUX); RENDEMENT EN VIANDE; RENDIMIENTO CARNICO; SISTEMAS DE ALIMENTACION; SWINE; TAUX DE CROISSANCE; TECHNIQUE D'ALIMENTATION; TROUGHS; WEIGHT GAIN
• ISSN: 0906-4702; 1651-1972
• DOI: 10.1080/090647000750069430

Ten batches of pigs (608 pigs) were used in this investigation (live weight interval 20-120 kg). Four different feeding systems were tested: one dry feeder, four dry feeders, trough feeding or one wet/dry feeder per pen of 16 pigs, respectively. The one dry feeder treatment led to an increase in skin injuries, a more spread feed intake pattern, an increased variation in carcass meat percentage and an increased variation in daily weight gain (DWG) when the pigs were restrictively fed, compared with observations for the pigs in the four dry feeders treatment. The effect of a reduced number of feeding places was most pronounced when the pigs were fed restrictively. Besides the possible negative financial effects for pig producers, these findings indicated that competition for feed impaired the well-being of the pigs. Pigs fed in a trough had a lower DWG and higher feed conversion ratio than did those fed using four dry feeders, probably due to feed spillage and the different feed intake pattern. Giving pigs the possibility of adding water to the feed increased the daily feed intake when feeding ad libitum, resulting in a higher DWG. It also reduced the negative effects of competition on performance, but not the negative effects on skin injuries.