Proceedings
Goats are thought to be better roughage utilizers than sheep, but scientific evidence is scarce and inconclusive. Stall-fed British Saanen goats (G) and Welsh Mountain Sheep (S) were compared. Animals were 9-month old castrate males of 25 kg live weight. Experiment I used 8 goats and 8 sheep in two periods to measure the digestibility of restricted-fed (40 g dry matter/kgW 0.75 day) milled (MH) and pelleted high-digestibility grass hay (LH) and soya bean meal-supplemented chopped barley straw (St). Organic matter digestibilities (percentage) were not affected by species; GHH, 65.9; SHH, 65.7; GMH, 57.2; SMH, 58.9; GLH, 51.9; SLH 53.5; GSt, 35.6; SSt, 40.2. Experiment II involved the same diets fed ad libitum in double 4 x 4 Latin squares per species. Goats showed higher intakes than sheep, but species did not affect digestibility except for St. Dry matter intakes (g/kgW 0.75 day) and organic matter digestibilities (percentage) respectively, were GHH, 121, 61.7; SHH, 99, 60.7; GMH, 78, 54.3; SMH, 59, 55.2; GLH, 74, 49.6; SLH, 54, 51.6; GSt, 65, 31.5; SSt, 48, 39.1. Water consumption (per kg dry matter consumed) was 29 percent less for goats than sheep. Five goats and 5 sheep fed MH ad libitum in Experiment III showed that mean retention (hours) of Fuschin stained hay in alimentary tract, was longer for goats, G 59.7 vs S 53.0. For the breeds studied it is concluded that goats have a greater capacity to consume roughage than sheep, but greater ability to digest roughage is not evident. Further research, involving rate of digestion studies required
| Main Authors: | , , , |
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| Format: | biblioteca |
| Published: |
Scottsdale, AZ (EUA)
1982
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| Subjects: | CAPRINOS, ALIMENTACION DE LOS ANIMALES, CONSUMO DE ALIMENTOS, DIGESTIBILIDAD, FORRAJES, CONSUMO DE FORRAJES, REINO UNIDO, |
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| Summary: | Goats are thought to be better roughage utilizers than sheep, but scientific evidence is scarce and inconclusive. Stall-fed British Saanen goats (G) and Welsh Mountain Sheep (S) were compared. Animals were 9-month old castrate males of 25 kg live weight. Experiment I used 8 goats and 8 sheep in two periods to measure the digestibility of restricted-fed (40 g dry matter/kgW 0.75 day) milled (MH) and pelleted high-digestibility grass hay (LH) and soya bean meal-supplemented chopped barley straw (St). Organic matter digestibilities (percentage) were not affected by species; GHH, 65.9; SHH, 65.7; GMH, 57.2; SMH, 58.9; GLH, 51.9; SLH 53.5; GSt, 35.6; SSt, 40.2. Experiment II involved the same diets fed ad libitum in double 4 x 4 Latin squares per species. Goats showed higher intakes than sheep, but species did not affect digestibility except for St. Dry matter intakes (g/kgW 0.75 day) and organic matter digestibilities (percentage) respectively, were GHH, 121, 61.7; SHH, 99, 60.7; GMH, 78, 54.3; SMH, 59, 55.2; GLH, 74, 49.6; SLH, 54, 51.6; GSt, 65, 31.5; SSt, 48, 39.1. Water consumption (per kg dry matter consumed) was 29 percent less for goats than sheep. Five goats and 5 sheep fed MH ad libitum in Experiment III showed that mean retention (hours) of Fuschin stained hay in alimentary tract, was longer for goats, G 59.7 vs S 53.0. For the breeds studied it is concluded that goats have a greater capacity to consume roughage than sheep, but greater ability to digest roughage is not evident. Further research, involving rate of digestion studies required |
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