Table 4 Nutrient composition of feedstuff given to pregnant mares of groups “Control” and “Arginine” from the 10th of October (mean gestational day 150) to parturition.

From: Effects of dietary arginine supplementation in pregnant mares on maternal metabolism, placental structure and function and foal growth

 

Digestible Energy (Mcal/kg DM)

Crude proteins (g/kg DM)

Lysine (g/kg DM)

Arginine (g/kg DM)

Arginine/lysine

Arginine/crude proteins

Hay 1

2.38

58.2

1.2

1.2

1

0.02

Hay 2

2.59

71.5

1.2

1.2

1

0.02

Haylage

2.51

101.2

1.1

0.5

0.45

0.005

Barley mix

3.22

140.8

4.4

6.1

1.4

0.04

Control pellets

3.69

102.8

3.5

5.9

1.7

0.06

Experimental pellets

3.73

294.5

3.2

108.1

33.8

0.37

  1. Digestible energy was calculated using the NRC equations: for concentrates DE = 4.07–0.055 ADF, for forages DE = 2.118 + 0.01218 CP - 0.000937 ADF - 0.00383 (NDF - ADF) + 0.04718 EE + 0.02035 NFC - 0.0262 Ash (where NFC = 100 - %NDF - %CP - %EE - %Ash). Arginine and lysine contents were assayed for control and experimental pellets and were estimated from the NRC amino acid tables of feedstuff for barley (as barley grain hulless), hay (as grass-legume mixtures predominantly grass, hay, mid-maturity) and haylage (as grass-legume mixtures predominantly grass, silage, mid-maturity).
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