Colour stability and water-holding capacity of M. Longissimus and carcass characteristics in fallow deer (Dama dama) grazed on natural pasture or fed barley

Abstract

The effects of feeding regimen on carcass characteristics, meat colour and water-holding capacity of M. liongissimus were studied in 24 female fallow deer (Dama.dama). All animals were farm raised; twelve were grazed on pasture and twelve were fed barley and a small amount of hay prior to slaughter. The animals were slaughtered at two occasions (during the Southern Hemisphere spring); after 19 weeks of feeding (n=12; 6 grazing and 6 barley fed animals; group 1) and after 24 weeks of feeding (n=12; 6 grazing and 6 barley fed animals; group 2). The barley/hay-fed deer had significantly higher body condition scores and carcass weights than the pasture raised group. No difference in meat ultimate pH values between the treatment groups was recorded. The meat from the pasture raised deer had significantly longer colour display life after 2 and 3 weeks of refrigerated storage (+ 2.0 0c) in vacuum bags. There was no difference in drip loss between the two treatment groups. However, significantly lower drip losses wer found in meat from the animals in group 2 compared with the ones in group 1 (P< 0.001). It was concluded that the feeding regimen of the animals is an important factor that contributes to the variation in quality of fresh chilled deer meat (venison), mainly the colour stability and display life of vacuum packaged meat