חיפוש מתקדם
Animal Production
Levy, D., Agricultural Research Organization, Newe Ya'ar Regional Experiment Station, Israel
Holzer, Z., Agricultural Research Organization, Newe Ya'ar Regional Experiment Station, Israel
Folman, Y., Agricultural Research Organization, Newe Ya'ar Regional Experiment Station, Israel
The effects of roughage level (15 and 35% of the ration) and of slaughter weight (400,450 and 500 kg) were studied in an experiment of 2 x 3 factorial design. Daily live-weight gains and carcass gains were significantly higher on the lower roughage levels, but there was no difference in degree of fatness of the carcass. Dry-matter intake expressed as a percentage of body weight was 2·91 on 35% roughage compared with 2·53 and 15% roughage, i.e. 15% higher on the highroughage diet. This compensated the animals on the high-roughage diet for the lower energy content of their feed. Rate of gain increased with an increase in slaughter weight. The percentage of fat trim and of saleable meat increased, while that of bone decreased significantly with an increase in slaughter weight. The animals on the lowroughage diet were approximately 11% more efficient than the others in converting metabolizable energy into live weight. © 1975, British Society of Animal Science. All rights reserved.
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תנאי שימוש
Effect of concentrate: Roughage ratio on the production of beef from Israeli-Friesian bulls slaughtered at different live weights
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Levy, D., Agricultural Research Organization, Newe Ya'ar Regional Experiment Station, Israel
Holzer, Z., Agricultural Research Organization, Newe Ya'ar Regional Experiment Station, Israel
Folman, Y., Agricultural Research Organization, Newe Ya'ar Regional Experiment Station, Israel
Effect of concentrate: Roughage ratio on the production of beef from Israeli-Friesian bulls slaughtered at different live weights
The effects of roughage level (15 and 35% of the ration) and of slaughter weight (400,450 and 500 kg) were studied in an experiment of 2 x 3 factorial design. Daily live-weight gains and carcass gains were significantly higher on the lower roughage levels, but there was no difference in degree of fatness of the carcass. Dry-matter intake expressed as a percentage of body weight was 2·91 on 35% roughage compared with 2·53 and 15% roughage, i.e. 15% higher on the highroughage diet. This compensated the animals on the high-roughage diet for the lower energy content of their feed. Rate of gain increased with an increase in slaughter weight. The percentage of fat trim and of saleable meat increased, while that of bone decreased significantly with an increase in slaughter weight. The animals on the lowroughage diet were approximately 11% more efficient than the others in converting metabolizable energy into live weight. © 1975, British Society of Animal Science. All rights reserved.
Scientific Publication