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Nutrient Requirements of Laboratory Animals, Fourth Revised Edition, 1995 (1995)
Institute for Laboratory Animal Research (ILAR)

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104
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Nutrient Requirements of Laboratory Animals: Fourth Revised Edition, 1995

TABLE 4-1 Estimated Nutrient Requirements for Growth for Guinea Pigs

Nutrient

Unit

Amount, per kg diet

Comments

Reference

Protein

(28.6 g N × 6.25)

g

180.0a

 

Shelton, 1971; Lister and McCance, 1965; Typpo et al., 1990a,b

Essential fatty acids (n-6)

g

1.33–4.0

10 g corn oil/kg diet is satisfactory

Reid et al., 1964

Fiber

g

150.0

Used cellulose and/or materials of low digestibility to supply bulk

Heinicke and Elvehjem, 1955

Amino acidsb

 

 

 

 

Arginine

g

12.0

 

Yoon, 1977

Histidine

g

3.6

 

Anderson and Typpo, 1977

Isoleucine

g

6.0

 

Ayers et al., 1987

Leucine

g

10.8

 

Mueller, 1978

Lysine

g

8.4

 

Typpo et al., 1985

Methionine

g

6.0c

 

Typpo et al., 1990b

Phenylalanine

g

10.8d

 

Chueh, 1973

Threonine

g

6.0

 

Horstkoetter, 1974

Tryptophan

g

1.8

 

Smith, 1979

Valine

g

8.4

 

Typpo et al., 1990b

Dispensable nitrogen

g

16.9e

 

Typpo et al., 1990b

Minerals

 

 

 

 

Calcium

g

8.0

Requirements for calcium, phosphorus, magnesium and potassium seem to reflect interactions among them

Morris and O'Dell, 1961, 1963; O'Dell et al., 1956, 1960

Phosphorus

g

4.0

 

Magnesium

g

1.0

 

 

Potassium

g

5.0

 

 

Chloride

g

0.5

From the estimate for rats fed purified diet

 

Sodium

g

0.5

 

 

Copperf

mg

6.0

 

Everson et al., 1967, 1968

Iron

mg

50.0

Estimate

 

Manganese

mg

40.0

 

Everson et al., 1959

Zinc

mg

20.0

 

Alberts et al., 1977; Navia and Lopez, 1973

Iodineg

µg

150.0

Based on rat requirement

 

Molybdenum

µg

150.0

Based on rat requirement

 

Selenium

µg

150.0

Based on rat requirement diets

 

Vitamins

 

 

 

 

A (retinol)h or

(β-carotene)

mg

mg

6.6

28.0

Used 40% as efficiently as preformed vitamin A

Gil et al., 1968.

Bentley and Morgan, 1945

D (cholecalciferol)i

mg

0.025

Adequate; no quantitative data

 

E (RRR-α-tocopherol)j

mg

26.7

Adequate

Hsieh and Navia, 1980

K (phylloquinone)

mg

5.0

Adequate; dietary deficiency has not been produced

 

Ascorbic acid

mg

200.0

 

Mannering, 1949

Biotin (d-biotin)

mg

0.2

Adequate; simple dietary deficiency has not been produced

 

Choline (choline bitartrate)

mg

1,800

 

Reid, 1955

Folic acid

mg

3.0-6.0

 

Mannering, 1949; Reid, 1954a; Reid et al., 1956; Woodruff et al., 1953

Niacin

mg

10.0

 

Reid, 1961

Pantothenic acid (Ca-d-pantothenate)

mg

20.0

 

Reid and Briggs, 1954

Pyridoxine

mg

2.0-3.0

 

Reid, 1964

Riboflavin

mg

3.0

Estimated

Slanetz, 1943

Thiamin (thiamin-HCl)

mg

2.0

 

Liu et al., 1967; Reid and Bieri, 1967

NOTE: Nutrient requirements are expressed on an as-fed basis for diets containing 10% moisture; 2.8–3.5 kcal ME/g (11.7–14.6 kJ ME/g) and should be adjusted for diets of differing moisture and energy concentrations. Unless otherwise specified, the listed nutrient concentrations represent minimal requirements and do not include a margin of safety. Higher concentrations for many nutrients may be warranted in natural-ingredient diets.

a See text. Growth is equivalent with 300 g casein plus 3 g L-arginine per kg or 200 g soybean protein plus 10 g DL-methionine per kg.

b The quantities reflect a 20% adjustment for efficiency of utilization for maximum growth. See text for discussion.

c Cystine may replace 40%.

d Tyrosine may replace 50%.

e Mixture of L-alanine, L-asparagine·H2O, L-aspartic acid, L-glutamic acid, sodium glutamate, glycine, L-proline and L-serine. See text and Typpo et al. (1990b).

f Minerals measured in mg/kg correspond to ppm.

g Iodine, molybdenum, and selenium are measured in µg/kg, corresponding to ppb.

h Equivalent to 21,960 IU/kg. β-Carotene requirement measured is equivalent to 47,425 IU/kg.

i Equivalent to 1,000 IU/kg.

j Equivalent to 40 IU/kg. Higher concentrations may be required if high-fat diets are used.

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