Corpus ID: 37320550

Unique nutrient requirements of cats appear to be diet induced evolutionary adaptations.

  title={Unique nutrient requirements of cats appear to be diet induced evolutionary adaptations.},
  author={J.Gareth Morris},
Summary Cats have requirements for essential dietary nutrients additional to those needed by other animals. The object of this review is to relate the idiosyncratic nutritional requirements of cats to activities of enzymes involved in the pathways of these nutrients. The high protein requirement of cats follows from the lack of regulation of the aminotransferases of dispensable nitrogen metabolism and urea cycle enzymes. The dietary requirements for the amino acids taurine and arginine are… Expand
Idiosyncratic nutrient requirements of cats appear to be diet-induced evolutionary adaptations*
The nutrient requirements of domestic cats support the thesis that their idiosyncratic requirements arose from evolutionary pressures arising from a rigorous diet of animal tissue. Expand
Modelling Net Energy of Selected Commercial Diets Fed to Domestic Adult Cats
The results suggest that despite the inherent carnivorous nature of domestic cats, they efficiently digest diets with significant contributions from carbohydrates, and equations that better estimate dietary energy availability for cats are developed. Expand
Carbohydrate level and source have minimal effects on feline energy and macronutrient metabolism.
Cats revealed a prolonged postprandial glucose and insulin response compared with other monogastric animals, yet diet effects were minimal, and interstitial glucose measures were less variable than serum glucose measurements and followed a parallel pattern to RQ. Expand
Effects of six carbohydrate sources on diet digestibility and postprandial glucose and insulin responses in cats.
The data suggest that starch has less of an effect on the cat postprandial glucose and insulin responses than on those of dogs and humans, and this can be explained by the metabolic peculiarities of felines, which may slow and prolong starch digestion and absorption, leading to the delayed, less pronounced effects on their blood responses. Expand
Comparison of micronized whole soybeans to common protein sources in dry dog and cat diets
It was concluded that micronized whole soybeans in combination with other protein sources containing complementary amino acids are a source of highly available, quality-consistent protein raw materials for both dog and cat diets. Expand
Métodos para estudo das respostas metabólicas de cães e gatos a diferentes alimentos
Durante o processo de assimilacao e uso dos alimentos, diferentes respostas metabolicas podem ser desenvolvidas pelo organismo dos animais. Estas respostas sao fruto da integracao de mecanismosExpand
Provision of High Meat Content Food and Object Play Reduce Predation of Wild Animals by Domestic Cats Felis catus
Non-invasive, positive contributions to cat nutrition and behavior that reduce their tendency to hunt, rather than impede their hunting are tested, likely to find support among cat owners who are concerned about the welfare implications of other interventions. Expand


Metabolic basis for some of the nutritional peculiarities of the cat
The metabolic basis for some of the nutritional peculiarities of the domestic cat, a true carnivore which has received the most attention, is reviewed. Expand
Lack of hepatic enzymatic adaptation to low and high levels of dietary protein in the adult cat.
The results indicate that the cat may have only minimal capabilities for enzyme adaptation as compared to that found in many herbivores and omnivores, and may provide an explanation as to why cats have an unusually high protein requirement asCompared to many other mammals. Expand
Fatty acid metabolism in domestic cats (Felis catus) and cheetahs (Acinonyx jubatas).
  • J. Bauer
  • Biology, Medicine
  • The Proceedings of the Nutrition Society
  • 1997
Results of recent studies in cheetahs from the laboratory are the focus of the present discussion, along with a review of fatty acid metabolism in cats, which underscore the reliance of cats on other mammals to make these important fatty acids for them. Expand
Dietary taurine requirement of cats is determined by microbial degradation of taurine in the gut.
The basis for the lower synthetic capacity in cats than in dogs and other animals has not been fully elucidated and other contributing factors are the low activity of cysteine sulfinate decarboxylase and the high activity of aspartate aminotransferase. Expand
Effect of variations in protein intake on enzymes of amino acid metabolism.
  • A. Harper
  • Biology, Medicine
  • Canadian journal of biochemistry
  • 1965
Changes in the protein intake of animals result in changes in the activities of many enzymes of nitrogen metabolism that suggest that the lability of body proteins depends not on protein intake as such but on the metabolic requirements of the organism. Expand
Essentiality of amino acids for the growing kitten.
The effect of deleting each of the amino acids known to be essential for the young rat was determined in post weanling kittens fed a purified diet containing only L-amino acids as the source ofExpand
Inability of the cat to desaturate essential fatty acids
A wide range of naturally occurring polyunsaturated fatty acids have been shown to exhibit EFA activity, but they can be classified into two homologous series characterised by the position of the terminal double bonds relative to the methyl (omega) carbon atom. Expand
Arginine: an essential amino acid for the cat.
It was concluded that the cat lacks the ability to synthesize ornithine and is an essential nutrient: it provides a unique example of a nutrient so critical that one meal without dietary arginine may result in death. Expand
Role of linoleate as an essential fatty acid for the cat independent of arachidonate synthesis.
It is shown that linoleate has specific functions as an EFA, independent of arachidonate synthesis and prostaglandin formation, and is an essential fatty acid for the cat. Expand
Effects of linoleate and arachidonate deficiencies on reproduction and spermatogenesis in the cat.
Linoleate appears to meet the requirements for spermatogenesis in males, but dietary arachidonate is essential for adequate reproduction in female cats. Expand