Page 91 - Raw Diet References Book 2019

3.2 Substantiation of nutrient recommendations for cats

PROTEIN

Total protein

Amino acids (Adult cats) FEDIAF protein levels are a NRC Chapter 15. Nutrient Requirements and Dietary Nutrient
based on NRC (2006) recommendations , but have Concentrations. In: Nutrient Requirements of Dogs and Cats.
a
been adjusted to take into account i) an apparent crude The National Academic Press, Washington, DC. 2006: pp. 366-
protein digestibility of 80% and ii) energy intakes for cats. 367, table 15-11.

Glutamate (Kittens) The level of glutamate should a Deady JE, Anderson B, O’Donnell III JA, et al. Effects of level of
not exceed 6 per cent dry matter in foods for kittens. a, b dietary glutamic acid and thiamine on food intake, weight gain,
plasma amino acids and thiamin status of growing kittens. J.
Nutr. 1981; 111: 1568-1579.
b Deady JE, Rogers QR, Morris JG. Effect of high dietary glutamic
acid on the excretion of 35S-thiamin in kittens. J. Nutr. 1981; 111:
1580-1585.
Arginine

Arginine (All life stages) The arginine requirement a NRC Chapter 15. Nutrient Requirements and Dietary Nutrient
increases with increased protein content owing to its Concentrations. In: Nutrient Requirements of Dogs and Cats.
role as an intermediate in the urea cycle. For every The National Academic Press, Washington, DC. 2006: pp. 357-
gram of crude protein above the stated values, an 363 tables 15-10, 15-12 and 15-14.
additional 0.02g of arginine is required. a

Arginine (Kittens) Taylor (1995) found that 45g/ a Taylor TP. MS thesis Univ California, Davis, CA USA. 1995
kg diet (470kcal/100g) was associated with a small
decrease in growth rate. NRC therefore sets a prudent
maximum of 3.5g/100g DM (400kcal/100g). a

Methionine-cystine

Methionine-cystine (Adult cats) The recommended a Burger IH, Smith P. Aminosäurenbedarf erwachsener Katzen.
values are based on a study by Burger and Smith a In: Ernährung, Fehlernährung, und Diätetik bei Hund und Katze
showing that adult cats need 0.16g methionine (without – Proceedings of the International Symposium Hannover (DE),
cystine) per MJ ME to maintain a positive N-balance. After September 3-4, 1987: pp. 93-97.
adding a safety margin of 20% this corresponds to 0.34%
DM or 0.85g per 1000kcal ME methionine + cystine.

Cystine Sulphur amino acid requirements of cats a Blaza SE, Burger IH, Holme DW, Kendall PT. Sulfur-containing amino
(Teeter et al., 1978) and dogs (Blaza et al., 1982) have acid requirements of growing dogs. J Nutr. 1982 Nov; 112(11): 2033-42.
been determined through studies using methionine and b Teeter RG, Baker DH, Corbin JE. Methionine and cystine
cystine. Cystine is a dimer of cysteine, during analysis, requirements of the cat. J Nutr. 1978 Feb; 108(2): 291-5.
cystine and cysteine are both determined as cysteic acid
in hydrolysates of oxidised sample, but calculated as
cystine. a, b

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