May
June
July
September
Linoleic acid
22.6
34.1
16.6
46.3
Linolenic acid
41.2
42.7
36.7
52.4
Average milk yield and chemical composition (Table 33.2) did not differ between groups. As expected, along the trial, milk yield gradually decreased; the percentage of protein decreased slightly at the fourth sampling. Regarding the fat content, the highest values were registered at the second and fifth sampling.
Table 33.2
Milk yield and chemical composition in groups C (control) and L (linseed)
Yield | Protein | Fat | Lactose | |
---|---|---|---|---|
g/day | % | |||
Group effect | ||||
C | 1,337.2 | 3.53 | 4.45 | 4.59 |
L | 1,432.7 | 3.58 | 4.60 | 4.58 |
Sampling effect | ||||
1 | 2,043.7A | 3.28C | 4.23B | 4.76A |
2 | 1,703.3B | 3.50BC | 4.50A | 4.74A |
3 | 1,367.8C | 3.55B | 4.18B | 4.60B |
4 | 1,154.6C | 3.44BC | 3.97C | 4.53BC |
5 | 710.8D | 4.14A | 4.52A
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