Table 1 Performance data (Mean ± SE) in calves fed with different AA supplementations.

From: Skeletal muscle metabolomics and blood biochemistry analysis reveal metabolic changes associated with dietary amino acid supplementation in dairy calves

Group

Initial BW

(kg)

BW at biopsy (kg)

Initial age (days)

Age at biopsy (days)

ADG

(g/d)

Ctrl

44.2 ± 1.66

77.8 ± 1.73

3.3 ± 0.77

48.5 ± 1.04

740 ± 17.5

GP

47.2 ± 1.74

81.9 ± 2.46

2.4 ± 0.26

48.1 ± 0.83

759 ± 23.6

FY

42.3 ± 2.40

75.6 ± 2.58

2.6 ± 0.38

47.5 ± 0.96

740 ± 17.9

MKT

44.6 ± 2.70

80.8 ± 2.75

2.4 ± 0.65

47.6 ± 0.94

798 ± 26.9

  1. Ctrl: Control milk replacer; GP: Milk replacer supplemented with glycine and proline; FY: Milk replacer supplemented with phenylalanine and tyrosine and MKT: Milk replacer supplemented with lysine, methionine and threonine (n = 8 per group). ADG = Average daily gain; BW = Body weight. Results were analysed by t-test for comparisons between Ctrl and treatment groups.
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