Table 1.

Nutrient composition of the partially de-oiled microalgae extract (MAE) supplemented to nursery pig diets

Nutrient	Value*
Proximate analysis, % as-fed
Moisture	3.99
Crude protein	5.72
Ether extract	7.63
Ash	6.20
Carbohydrates by difference†	76.62
Total dietary fiber, %	33.30
Soluble dietary fiber	13.60
Insoluble dietary fiber	19.70
Neutral detergent fiber, %	7.70
Acid detergent fiber, %	2.87
Metabolizable energy content, kcal/kg‡	2,600
Amino acid profile, % as-fed	4.38
Methionine	0.08
Cystine	0.07
Lysine	0.05
Phenylalanine	0.21
Leucine	0.42
Isoleucine	0.19
Threonine	0.20
Valine	0.29
Histidine	0.10
Arginine	0.13
Glycine	0.28
Aspartic acid	0.45
Serine	0.27
Glutamic acid	0.84
Proline	0.26
Hydroxyproline	0.02
Alanine	0.34
Tyrosine	0.10
Tryptophan	0.05
Taurine	0.03
Fatty acid profile, % as-fed	7.19
Capric	0.02
Lauric	0.08
Myristic	0.07
Palmitic	0.41
Palmitoleic	0.01
Heptadecanoic	0.00
Stearic	0.20
Oleic	6.20
Linoleic	0.13
Linolenic	0.02
Arachidic	0.03
Eicosanoic	0.01
Eicosapentaenoic (EPA)	0.01
Glycosyl composition of nonhydrolyzed MAE§
Arabinose	Not detected
Rhamnose	Not detected
Xylose	Not detected
Mannose	11.2
Galactose	2.8
Glucose	86.0
Glycosyl composition of hydrolyzed MAE#
Arabinose	2.3
Rhamnose	Not detected
Fructose	Not detected
Xylose	0.5
Mannose	10.8
Galactose	15.1
Glucose	71.3

*Values are the result of one analyzed sample.

^†Calculated as 100 − (DM + CP + ether extract + ash).

^‡Calculated (Noblet and Perez, 1993): ME (kcal/kg as-fed) = 4,194 − (9.2 × ash) + (1.0 × CP) + (4.1 × EE) − (3.5 × NDF), where CP, EE, and NDF composition data (g/kg) were used on an as-fed basis.

^§Glycosyl composition (mol % as-fed) before hydrolysis with 2 M trifluoracetic acid.

^#Glycosyl composition (mol % as-fed) after hydrolysis with 2 M trifluoracetic acid.