Effect of dietary nitrogen level and essential amino acid: Total nitrogen (E:T) ratio on kitten weight gain

T. P. Taylor, J. Deberry, James Morris, Quinton Rogers

Research output: Contribution to journalArticle

Abstract

Experiments were conducted to determine crude protein (CP) levels and E.T. ratios that support optimal weight gain in the kitten. Kitten groups fed diet containing 0.75 and 1.0 the essential amino acid requitement (EAArq) and CP of 14-56% had lower weight garms (WG) than kittens fed a control diet (CD) containing 1.5 EAArq at 356% CP. WG of these kitten groups decreased (dec) as CO increased (inc) above 28% and was inversely proportional to plasma glu concentrations suggesting that hyperglutamatemia may be contributing to dec WG. Urinary crotic acid excreation of kittens fed 56% CP and 0.7% and 1.0 EAArq was gently elevated and plasma are concentratios were both 0.42% that of kittens fed CD, suggesting that hyperammonemia may also be contributing to dec WG found in kittens fed high CP diets. Kittens fed CD, suggesting that hypermmonemia may also be contributing to dec WG found in kittens fed high CP diest. Kittens fed CD when CP was 28-42 and kittens fed CD when CO was 28-56%. However, WG of kittens in the 1.5 and 2.0 EAArq had similar WG kittens fed CD when CP was 28-42 and kittens fed diest containing 3.0 EAArq had similar WG as kittens fed CD when CP was 28-56% When EAA were fed as the sole nitrogen source 10.0 met and 3.0% arg), WG inc as CP the from 14-35% and WG was simila to WG of kitten FED CD when CP was 35046%. A 3-D plot of WG, CP and E:T ratios was constructed and illustrates that maximal WG of the kitten was achieved at CP levels of 28-56, with E:T ratios of 0.30-1.0 if deficiencies and tocicaties of amino acids are avoided.

Original languageEnglish (US)
JournalFASEB Journal
Volume10
Issue number3
StatePublished - Dec 1 1996

ASJC Scopus subject areas

  • Biotechnology
  • Biochemistry
  • Molecular Biology
  • Genetics

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