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OCR for page 10
Nutrient Requirements of Goats: Angora, Dairy, and Meat Goats in Temperate and Tropical Countries
3
TABLE OF NUTRIENT REQUIREMENTS
The nutrient requirements presented in Table 1 can be used to formulate diets for the different classes and categories of goats by proper use of available feedstuffs. The table lists nutrient requirements for maintenance at different levels of muscular activity and additional requirements for growth, pregnancy, lactation, and mohair production. The daily energy requirements for maintenance are 101.38 kcal ME/Wkg0.75 [1 kg TDN=4.409 Mcal DE (Garrett et al., 1959) or 76 DE=62 ME=35 NE; protein requirements are related to energy needs as follows: 22 g DP or 32 g TP per Mcal DE]. The energy requirement for growth is 7.25 kcal ME/g of gain. Goat kids at very young ages may not be able to consume the suggested required quantities of DM. Similar situations can exist with high-producing dairy goats, but intakes of more than 5 percent of body weight have been reported (Haenlein, 1978). The energy requirements per kg FCM at 4 percent are 1246.12 kcal ME; and a 0.5 percent fat change in 4 percent FCM is 16.28 kcal ME. Additional requirements for mohair production are also presented. Details on Table 1 are discussed in Chapter 2.
TABLE 1 Daily Nutrient Requirements of Goatsa
Body Weight (kg)
Feed Energy
Crude Protein
Vitamin A (1000 IU)
Vitamin D IU
Dry Matter per Animal
1 kg=2.0 Mcal ME
1 kg=2.4 Mcal ME
TDN (g)
DE (Mcal)
ME (Mcal)
NE (Mcal)
TP (g)
DP (g)
Ca (g)
P (g)
Total (kg)
% of kg BW
Total (kg)
% of kg BW
Maintenance only (includes stable feeding conditions, minimal activity, and early pregnancy)
10
159
0.70
0.57
0.32
22
15
1
0.7
0.4
84
0.28
2.8
0.24
2.4
20
267
1.18
0.96
0.54
38
26
1
0.7
0.7
144
0.48
2.4
0.40
2.0
30
362
1.59
1.30
0.73
51
35
2
1.4
0.9
195
0.65
2.2
0.54
1.8
40
448
1.98
1.61
0.91
63
43
2
1.4
1.2
243
0.81
2.0
0.67
1.7
50
530
2.34
1.91
1.08
75
51
3
2.1
1.4
285
0.95
1.9
0.79
1.6
60
608
2.68
2.19
1.23
86
59
3
2.1
1.6
327
1.09
1.8
0.91
1.5
70
682
3.01
2.45
1.38
96
66
4
2.8
1.8
369
1.23
1.8
1.02
1.5
80
754
3.32
2.71
1.53
106
73
4
2.8
2.0
408
1.36
1.7
1.13
1.4
90
824
3.63
2.96
1.67
116
80
4
2.8
2.2
444
1.48
1.6
1.23
1.4
100
891
3.93
3.21
1.81
126
86
5
3.5
2.4
480
1.60
1.6
1.34
1.3
Maintenance pluss low activity (=25% increment, intensive management, tropical range and early pregnancy)
10
199
0.87
0.71
0.40
27
19
1
0.7
0.5
108
0.36
3.6
0.30
3.0
20
334
1.47
1.20
0.68
46
32
2
1.4
0.9
180
0.60
3.0
0.50
2.5
30
452
1.99
1.62
0.92
62
43
2
1.4
1.2
243
0.81
2.7
0.67
2.2
40
560
2.47
2.02
1.14
77
54
3
2.1
1.5
303
1.01
2.5
0.84
2.1
OCR for page 11
Nutrient Requirements of Goats: Angora, Dairy, and Meat Goats in Temperate and Tropical Countries
Body Weight (kg)
Feed Energy
Crude Protein
Vitamin A (1000 IU)
Vitamin D IU
Dry Matter per Animal
1 kg=2.0 Mcal ME
1 kg=2.4 Mcal ME
TDN (g)
DE (Mcal)
ME (Mcal)
NE (Mcal)
TP (g)
DP (g)
Ca (g)
P (g)
Total (kg)
% of kg BW
Total (kg)
% of kg BW
50
662
2.92
2.38
1.34
91
63
4
2.8
1.8
357
1.19
2.4
0.99
2.0
60
760
3.35
2.73
1.54
105
73
4
2.8
2.0
408
1.36
2.3
1.14
1.9
70
852
3.76
3.07
1.73
118
82
5
3.5
2.3
462
1.54
2.2
1.28
1.8
80
942
4.16
3.39
1.91
130
90
5
3.5
2.6
510
1.70
2.1
1.41
1.8
90
1030
4.54
3.70
2.09
142
99
6
4.2
2.8
555
1.85
2.1
1.54
1.7
100
1114
4.91
4.01
2.26
153
107
6
4.2
3.0
600
2.00
2.0
1.67
1.7
Maintenance plus medium activity (=50% increment, semiarid rangeland, slightly hilly pastures, and early pregnancy)
10
239
1.05
0.86
0.48
33
23
1
0.7
0.6
129
0.43
4.3
0.36
3.6
20
400
1.77
1.44
0.81
55
38
2
1.4
1.1
216
0.72
3.6
0.60
3.0
30
543
2.38
1.95
1.10
74
52
3
2.1
1.5
294
0.98
3.3
0.81
2.7
40
672
2.97
2.42
1.36
93
64
4
2.8
1.8
363
1.21
3.0
1.01
2.5
50
795
3.51
2.86
1.62
110
76
4
2.8
2.1
429
1.43
2.9
1.19
2.4
60
912
4.02
3.28
1.84
126
87
5
3.5
2.5
492
1.64
2.7
1.37
2.3
70
1023
4.52
3.68
2.07
141
98
6
4.2
2.8
552
1.84
2.6
1.53
2.2
80
1131
4.98
4.06
2.30
156
108
6
4.2
3.0
609
2.03
2.5
1.69
2.1
90
1236
5.44
4.44
2.50
170
118
7
4.9
3.3
666
2.22
2.5
1.85
2.0
100
1336
5.90
4.82
2.72
184
128
7
4.9
3.6
723
2.41
2.4
2.01
2.0
Maintenance plus high activity (=75% increment, arid rangeland, sparse vegetation, mountainous pastures, and early pregnancy)
10
278
1.22
1.00
0.56
38
26
2
1.4
0.8
150
0.50
5.0
0.42
4.2
20
467
2.06
1.68
0.94
64
45
2
1.4
1.3
252
0.84
4.2
0.70
3.5
30
634
2.78
2.28
1.28
87
60
3
2.1
1.7
342
1.14
3.8
0.95
3.2
40
784
3.46
2.82
1.59
108
75
4
2.8
2.1
423
1.41
3.5
1.18
3.0
50
928
4.10
3.34
1.89
128
89
5
3.5
2.5
501
1.67
3.3
1.39
2.7
60
1064
4.69
3.83
2.15
146
102
6
4.2
2.9
576
1.92
3.2
1.60
2.7
70
1194
5.27
4.29
2.42
165
114
6
4.2
3.2
642
2.14
3.0
1.79
2.6
80
1320
5.81
4.74
2.68
182
126
7
4.9
3.6
711
2.37
3.0
1.98
2.5
90
1442
6.35
5.18
2.92
198
138
8
5.6
3.9
777
2.59
2.9
2.16
2.4
100
1559
6.88
5.62
3.17
215
150
8
5.6
4.2
843
2.81
2.8
2.34
2.3
Additional requirements for late pregnancy (for all goat sizes)
397
1.74
1.42
0.80
82
57
2
1.4
1.1
213
0.71
0.59
Addition requirements for growth—weight gain at 50 g per day (all for goat size)
100
0.44
0.36
0.20
14
10
1
0.7
0.3
54
0.18
0.15
Additional requirements for growth—weight gain at 100 g per day (for all goat sizes)
200
0.88
0.72
0.40
28
20
1
0.7
0.5
108
0.36
0.30
Additional requirements for growth—weight gain at 150 g per day (for all goat sizes)
300
1.32
1.08
0.60
42
30
2
1.4
0.8
162
0.54
0.45
Additional requirements for milk production per kg at different fat percentages (including requirements for nursing single, twin or triplet kids at the respective milk production level)
(% Fat)
2.5
333
1.47
1.20
0.68
59
42
2
1.4
3.8
760
3.0
337
1.49
1.21
0.68
64
45
2
1.4
3.8
760
3.5
342
1.51
1.23
0.69
68
48
2
1.4
3.8
760
4.0
346
1.53
1.25
0.70
72
51
3
2.1
3.8
760
4.5
351
1.55
1.26
0.71
77
54
3
2.1
3.8
760
5.0
356
1.57
1.28
0.72
82
57
3
2.1
3.8
760
OCR for page 12
Nutrient Requirements of Goats: Angora, Dairy, and Meat Goats in Temperate and Tropical Countries
Body Weight (kg)
Feed Energy
Crude Protein
Vitamin A (1000 IU)
Vitamin D IU
Dry Matter per Animal
1 kg=2.0 Mcal ME
1 kg=2.4 Mcal ME
TDN (g)
DE (Mcal)
ME (Mcal)
NE (Mcal)
TP (g)
DP (g)
Ca (g)
P (g)
Total (kg)
% of kg BW
Total (kg)
% of kg BW
5.5
360
1.59
1.29
0.73
86
60
3
2.1
3.8
760
6.0
365
1.61
1.31
0.74
90
63
3
2.1
3.8
760
Additional requirements for mohair production by Angora at different production levels
Annual Fleece Yield (kg)
2
16
0.07
0.06
0.03
9
6
4
34
0.15
0.12
0.07
17
12
6
50
0.22
0.18
0.10
26
18
8
66
0.29
0.24
0.14
34
24
aDefinitions of terms and equations used are in Chapter 2.
Representative terms from entire chapter:
nutrient requirements