The lack of readily available glucose from the limited carbohydrates in the diet has resulted to the adaptation of the liver to produce glucose from the breakdown components of protein—amino acids. The enzymes that breakdown amino acids are constantly active in cats and thus, cats need a constant source of protein in their diet. Kittens, require an increased amount of protein to supply readily available amino acids for daily maintenance and for building new body components seeing as they are constantly growing. There are many required amino acids for kittens. Histidine is required at no greater than 30% in kitten diets since consuming histidine-free diets causes weight loss.Tryptophan is required at 0.15% seeing as it maximized performance at this level. Kittens also need the following amino acids supplemented in their diet: arginine to avoid an excess of ammonia in the blood otherwise known as hyperammonemia, isoleucine, leucine, valine, lysine, methionine as a sulfur containing amino acid, asparagine for maximal growth in the early post-weaning kitten, threonine and taurine to prevent from central retinal degeneration.
Clio Yun-su Davis is a game designer and writer who creates larps, tabletop roleplaying games, interactive fiction games, and card games. Their freeform game The Long Drive Back from Busan won the Golden Cobra Challenge award for Best Game That Incorporates Meaningful, Non-Romantic Relationships in 2017, and their game about the future of ancestor worship, The Truth About Eternity, was presented at Fastaval 2019 in Denmark. http://www.cysdavis.com
As of 2017, the domestic cat was the second-most popular pet in the U.S. by number of pets owned, after freshwater fish, with 95 million cats owned. As of 2017, it was ranked the third-most popular pet in the UK, after fish and dogs, with around 8 million being owned. The number of cats in the United Kingdom has nearly doubled since 1965, when the cat population was 4.1 million.