Page 84 - Raw Diet References Book 2019

Methionine-cystine

Methionine-cystine (Adult dogs) The a Sanderson SL, Gross KL, Ogburn PN, et al. (2001) Effects of
recommended values are based on a dog food dietary fat and L-carnitine on plasma and whole blood taurine
containing a very low taurine content, i.e. <100mg/kg concentrations and cardiac function in healthy dogs fed protein-
dry matter. a For products containing higher levels restricted diets. Am. J. Vet. Res. 62: 1616-1623.
of taurine the RA for sulphur amino acids can be
lower than the values quoted in the table. For further
information see taurine section ANNEX 2.

Methionine In the case of lamb and rice foods, the a For details and references see ANNEX 2 – taurine.
methionine level may have to be increased. a

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

Tyrosine

Tyrosine (All life stages) For maximisation of black a NRC Chapter 15. Nutrient Requirements and Dietary Nutrient
hair colour, the tyrosine content may need to be 1.5 Concentrations. In: Nutrient Requirements of Dogs and Cats.
to 2 times higher than the amount stated. a, b The National Academic Press, Washington, DC. 2006: pp. 357-

363 tables 15-3, 15-5 and 15-8.
b Biourge V., R. Sergheraert (2002). Hair pigmentation can be
affected diet in dogs. Proc. Comp. Nutr. Soc. Number 4, Kirk-
Baer, C.L., 103-104.

FAT

Total fat

Total fat (All life stages) Dogs fed foods containing a Lindsay S, Entenman C, Chaikoff IL. Pancreatitis accompanying
normal levels of protein tolerate very high levels of fat hepatic disease in dogs fed a high fat, low protein diet. Arch.
(e.g. sled dogs). However very high fat foods with very Path. 1948; 45: 635-638.
low protein content have been linked with adverse
effects in dogs. a

Fat per se is not essential and as long as the
minimum recommendation for all essential fatty
acids is met or exceeded there is no risk of nutritional
deficiency. Therefore the minimum recommendation
for total fat in adult dogs with a MER of 95kcal/kg
BW has not been adjusted for energy intake versus
0.75
the recommendation for adult dogs with a MER of
110kcal/kgBW 0.75.

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