caa a22 4500 388060131 CHVBK 20180307125118.0 cr unu---uuuuu 161130e199812 xx s 000 0 eng 10.1017/S1357729800032835 doi S1357729800032835 pii (NATIONALLICENCE)cambridge-10.1017/S1357729800032835 Compensatory growth in Belgian Blue bulls previously grazed at two stocking rates: animal performance and meat characteristics [Elektronische Daten] A comparison was made between fattening systems with Belgian Blue bulls of the double-muscle type, in order to assess the reponse in terms of compensatory growth when the bulls were grazed at a high stocking rate. Two groups of eight bulls were grazed on Lolium perenne and Trifolium repens pasture during an initial period of 135 days (period I). One group grazed at a stocking rate of six animals per ha allowing for normal growth at pasture (NGP); the other group grazed at stocking rate of 10 animals per ha (low growth at pasture, LGP). Both groups were then finished indoors (period II) with a concentrate based on dried sugar-beet pulp. Eight control bulls were also fattened indoors on the concentrate diet during periods I and II (CG). The bulls were slaughtered according to similar finishing fattening state. Live-weight gains were 1·47, 1·10 and 0·52 kg/day (P < 0·002) during period I in CG, NGP and LGP groups respectively. Corresponding live-weight gains during period II were 1·22, 1·37 and 1·50 kg/day (P > 0·05). The LGP group had lower food conversion ratios, slaughter weights (P < 0·05) and dressing proportions (P < 0·01). The meat from the grazed bulls had lower cooking losses (P < 0·05) and tended to have lower drip losses (P > 0·05) and higher tenderness (P > 0·05). It also had a higher cholesterol (P < 0·05) content. Large differences were observed in the fatty acid composition according to fat location (subcutaneous, intermuscular or intramuscular). The proportions of mono and polyunsaturated acids were increased in the fats of the animals previously grazed (P > 0·05, P < 0·05). Copyright © British Society of Animal Science 1998 Belgian Blue nationallicence bulls nationallicence compensatory growth nationallicence fattening performance nationallicence grazing nationallicence meat quality nationallicence Hornick J. L. Department of Animal Nutrition, B43 Raskin P. Department of Animal Nutrition, B43 Clinquart A. Department of Food Science (Meat Technology), B43 bis Dufrasne I. Experimental Station, B39, Faculty of Veterinary Medicine, University of Liège, Sart-Tilman, 400 Liège, Belgium van Eenaeme C. Department of Animal Nutrition, B43 Istasse L. Department of Animal Nutrition, B43 Animal Science Cambridge University Press 67/3(1998-12), 427-434 1357-7298 67:3<427 1998 67 ASC https://doi.org/10.1017/S1357729800032835 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1017/S1357729800032835 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Hornick J. L. Department of Animal Nutrition, B43 NATIONALLICENCE 700 1- Raskin P. Department of Animal Nutrition, B43 NATIONALLICENCE 700 1- Clinquart A. Department of Food Science (Meat Technology), B43 bis NATIONALLICENCE 700 1- Dufrasne I. Experimental Station, B39, Faculty of Veterinary Medicine, University of Liège, Sart-Tilman, 400 Liège, Belgium NATIONALLICENCE 700 1- van Eenaeme C. Department of Animal Nutrition, B43 NATIONALLICENCE 700 1- Istasse L. Department of Animal Nutrition, B43 NATIONALLICENCE 773 0- Animal Science Cambridge University Press 67/3(1998-12), 427-434 1357-7298 67:3<427 1998 67 ASC CC0 http://creativecommons.org/publicdomain/zero/1.0 nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-cambridge