Male and female cats have different regional body compositions and energy requirements for weight loss and weight maintenance

Autor(es)

Vasconcellos, Ricardo Souza ^[1] ; Venturelli Goncalves, Karina Nogueira ^[2] ; Borges, Naida Cristina ^[3] ; Albuquerque de Paula, Francisco Jose ^[4] ; Canola, Julio Carlos ^[2] ; Sampaio Gomes, Marcia de Oliveira ^[5] ; Miltenburg, Tania Zoia ^[1] ; Carciofi, Aulus Cavalieri ^[2]

Afiliação do(s) autor(es)

^[1] Univ Estadual Maringa, Dept Anim Sci, Maringa, Parana - Brazil

^[2] Sao Paulo State Univ UNESP, Coll Agr & Veterinarian Sci FCAV, Jaboticabal - Brazil

^[3] Univ Goias, Vet Med Dept, Goiania, Go - Brazil

^[4] Univ Sao Paulo, Fac Med Ribeirao Preto, Ribeirao Preto - Brazil

^[5] Univ Sao Paulo, Coll Vet Med & Anim Sci, Sao Paulo - Brazil

• Tipo de documento: Artigo Científico
• Fonte: JOURNAL OF ANIMAL PHYSIOLOGY AND ANIMAL NUTRITION; v. 103, n. 5, p. 1546-1555, SEP 2019.
• Citações Web of Science: 0

Resumo

Body composition and energy requirements are different between males and females in several species, and both interfere with weight loss. The aim of this study was to compare the total and regional body composition and energy requirements in obese male (n = 8) and female (n = 8) cats, during weight loss and weight maintenance over 17 subsequent weeks after regimen. The total and regional (thoracic and pelvic limbs, and trunk) body composition was assessed by dual-energy X-ray absorptiometry (DXA). Females exhibited a higher fat mass (FM) than males (p < 0.05), and the trunk was the site with greater fat accumulation regardless of gender. A 23.0 +/- 2.8% reduction in body weight was followed by a 50.3 +/- 9.4% and a 37.0 +/- 8.9% reduction in fat in the trunk region in males and females respectively. Lean mass (LM) mobilization was also increased in the trunk (p < 0.05), and the loss of LM was associated with a reduction in bone mass. The energy intake to achieve the same rate of weight loss was 12.9 +/- 3.4% higher in males (p < 0.05). The cats exhibited a gradual increase in energy requirements to maintain their body weight after weight loss (p < 0.05). It was concluded that obese cats mainly accumulate fat in the trunk. The reduction in lean mass after the regimen also occurred in the trunk, with no modifications in the skeletal muscle mass of the limbs. Neutered male cats have higher energy requirements than neutered females, and gender should be considered during obesity management in cats. (AU)

• Processo FAPESP: 04/15416-9 - Avaliacao da perda de peso em gatos obesos alimentados com racoes hipocaloricas contendo diferentes teores proteicos.
• Beneficiário: Aulus Cavalieri Carciofi
• Modalidade de apoio: Auxílio à Pesquisa - Regular