Week 9
Goats |
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Nutrients
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Time: 4.41
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Nutrient Requirements and Digestion
- Goats must consume more DM (% BW) or the DM consumed must contain
higher nutrient density
- Reticulorumen is smaller and retention time of feed particles is shorter
- Faster turnover of feed particles and increased consumption
- Total nutrients digested higher than other ruminants
Nutrient Digestion
|
RT, h |
TR, %/h |
Digestibility,
% |
Cattle |
36 |
5.2 |
51 |
Sheep |
34 |
5.2 |
50 |
Goats |
28 |
7.1 |
45 |
Huston et al. (1986)
Energy
- Maintenance, growth, reproduction, lactation, fiber growth, activity
- Net energy (NE)
- Maintenance = 57 kcal/kg BW^0.75
- Activity increases NE requirements
- 25% - intensive mgt, tropical range
- 50% - semiarid range, hilly pasture
- 75% - arid range, mountainous pastures
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