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Details van artikel 6 van 11 gevonden artikelen
| Titel: |
Effect of feeding level, grazing and finishing on growth and carcass quality of young Friesian bulls |
| Auteur: |
Therkildsen, Margrethe Vestergaard, Mogens Jensen, Lise Ramsgaard Andersen, Henning Refsgaard Sejrsen, Kristen |
| Verschenen in: |
Acta agriculturae Scandinavica. Section A, Animal science |
| Paginering: | Jaargang 48 (1998) nr. 4 pagina's 193-201 |
| Jaar: |
1998-11 |
| Inhoud: |
Forty-one autumn-born Friesian bull calves were allocated to extensive (E) and intensive (I) production systems. The extensive system included 21 loose-housed animals fed a roughage-based diet the first winter, allowing a daily gain of 664 g, followed by a 5-month grazing period. Ten of these animals were slaughtered directly from pasture (live weight ∼360 kg), and the remaining 11 animals after a further 10-week finishing period with concentrates in tie-stalls (live weight ∼460 kg). In the intensive system, animals were housed in tie-stalls, offered concentrates ad libitum and slaughtered at about 360 kg (n = 11) and 460 kg (n = 9) live weight. Overall, daily gain of E-bulls was 926 g compared with 1478 g for the I-bulls (p< 0.001). At pasture, E-bulls gained 1108 g/day. Compared with I-bulls of similar live weights, the E-bulls slaughtered directly from pasture had a lower dressing percentage (p < 0.05), a higher lean content (p < 0.05), a much lower fat content (p < 0.05) and darker meat colour (p < 0.05). Finishing-fed E-bulls showed no sign of compensatory gain after the grazing period. The finishing period improved the carcass quality of E-bulls, but the E-bulls were leaner (p < 0.05) and had a darker meat colour (p < 0.05) than the I-bulls of similar live weight (460 kg). It is concluded that a finishing period of minimum 10 weeks following the grazing period is necessary to obtain a satisfactory carcass quality of the extensively produced young bulls. |
| Uitgever: |
Taylor & Francis |
| Bronbestand: |
Elektronische Wetenschappelijke Tijdschriften |
Details van artikel 6 van 11 gevonden artikelen
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