Document Detail


Protein intake during weight loss influences the energy required for weight loss and maintenance in cats.
MedLine Citation:
PMID:  19261729     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
The effects of 2 diets with different protein contents on weight loss and subsequent maintenance was assessed in obese cats. The control group [Co; n = 8; body condition score (BCS) = 8.6 +/- 0.2] received a diet containing 21.4 g crude protein (CP)/MJ of metabolizable energy and the high-protein group (HP; n = 7; BCS = 8.6 +/- 0.2) received a diet containing 28.4 g CP/MJ until the cats achieved a 20% controlled weight loss (0.92 +/- 0.2%/wk). After the weight loss, the cats were all fed a diet containing 28.0 g CP/MJ at an amount sufficient to maintain a constant body weight (MAIN) for 120 d. During weight loss, there was a reduction of lean mass in Co (P < 0.01) but not in HP cats and a reduction in leptinemia in both groups (P < 0.01). Energy intake per kilogram of metabolic weight (kg(-0.40)) to maintain the same rate of weight loss was lower (P < 0.04) in the Co (344 +/- 15.9 kJ x kg(-0.40) x d(-1)) than in the HP group (377 +/- 12.4 kJ. x kg(-0.40) x d(-1)). During the first 40 d of MAIN, the energy requirement for weight maintenance was 398.7 +/- 9.7 kJ.kg(-0.40) x d(-1) for both groups, corresponding to 73% of the NRC recommendation. The required energy gradually increased in both groups (P < 0.05) but at a faster rate in HP; therefore, the energy consumption during the last 40 d of the MAIN was higher (P < 0.001) for the HP cats (533.8 +/- 7.4 kJ x kg(-0.40) x d(-1)) than for the control cats (462.3 +/- 9.6 kJ x kg(-0.40) x d(-1)). These findings suggest that HP diets allow a higher energy intake to weight loss in cats, reducing the intensity of energy restriction. Protein intake also seemed to have long-term effects so that weight maintenance required more energy after weight loss.
Authors:
Ricardo S Vasconcellos; Naida C Borges; Karina N V Gonçalves; Júlio C Canola; Francisco J A de Paula; Euclides B Malheiros; Marcio A Brunetto; Aulus C Carciofi
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Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't     Date:  2009-03-04
Journal Detail:
Title:  The Journal of nutrition     Volume:  139     ISSN:  1541-6100     ISO Abbreviation:  J. Nutr.     Publication Date:  2009 May 
Date Detail:
Created Date:  2009-04-17     Completed Date:  2009-05-01     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  0404243     Medline TA:  J Nutr     Country:  United States    
Other Details:
Languages:  eng     Pagination:  855-60     Citation Subset:  IM    
Affiliation:
Universidade Estadual Paulista, Faculdade de Ciências Agrárias e Veterinárias, Departamento de Clínica e Cirurgia Veterinária, 14884-900 Jaboticabal-São Paulo, Brazil.
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MeSH Terms
Descriptor/Qualifier:
Animals
Body Composition
Cat Diseases / diet therapy*
Cats
Dietary Proteins / administration & dosage*
Energy Intake*
Female
Insulin / blood
Leptin / blood
Male
Nitrogen / analysis,  metabolism
Nutritional Requirements
Obesity / diet therapy,  veterinary*
Weight Loss*
Chemical
Reg. No./Substance:
0/Dietary Proteins; 0/Leptin; 11061-68-0/Insulin; 7727-37-9/Nitrogen

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine


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