Effects of the protein malnutrítion corrected at early age on the morphology in the epiphysal of growth of rabbits (New Zealand)

Author(s)

Vivian Vargas de Moraes

• Document type: Master's Dissertation
• Press: São Paulo.
• Institution: Universidade de São Paulo (USP). Faculdade de Medicina Veterinária e Zootecnia (FMVZ/SBD)
• Defense date: 2006-07-17

Examining board members

Francisco Javier Hernandez Blazquez; Beatriz de Camargo; Jacinta Diva Ferrugem Gomes

• Advisor: Francisco Javier Hernandez Blazquez

Abstract

Several authors prove the influence of an episode of chronic malnutrition in the growth in weight and stature. Meantime, there are not defined the repercussion of the protein malnutrition corrected at early age on the genetic potential of growth, as soon as it is difficult distinguishes the paper of the malnutrition of environment where it usually takes place. ln this way, this research had how aim to analyse the effects of the protein malnutrition corrected at early age in the morphology of the epiphyses of growth. So, experimental modeis were used 13 adult rabbits of the race White New Zealand, being 12 females designated like wombs and 1 male like reproducer. Four groups were estabiished in accordance with the food standard: Group 1 (normal protein gestation and lactation), group II (normal protein gestation and low protein lactation), group III (10w protein gestation and lactation) and group IV (10w protein gestation and normal protein lactation) After wean ali the animais presented protein correction in their diets. For collection of the datas, the young rabbits were subjected, weekly, to the corporal measure: length skull-torrent, weight and cephalic perimeter. In the 100th day of life, the animais were sacrificed for bone measure and extraction of the epiphyses of growth proximal of the tibia for histological analysis. In this form, it was possible to end that the protein malnutrition corrected at early age brings harmful effects on the morphology of the epiphyses of growth of rabbits, being the period of lactation was considered as a determinant of the fulI development of the genetic pote ntial of growth. (AU)