Improving Malagasy zebu production in the face of booming Malagasy population and regression of the animal number, this study was initiated to put forth some Malagasy zebu carcass weight performance and dressing percentages following slaughter. Measurements concerned live weight before slaughtering, carcass weights, quarters and carcass halves, left and right and the fifth quarter (blood, leather, intestine, lung, heart, liver, kidneys, spleen and rumen with its content) weights on 544 individuals without distinction (age nor sex). Descriptive statistical analysis was undertaken to qualify and compare the various weights. It results high proportion females (66%), smaller size (live weight less than 250 kg, 60%) and 5 live weight classes. Live weight was different in the 2 sexes starting class 3 (live weight > 250 kg) (p = 0.0027). Males fore quarters were heavier than females (p < 1‰). Carcass dressing percentage increased according to live weight class, whereas, 5th quarter yield presented a regressive reduction with increasing weight class. Survey shows an average dressing percentage of 46.20% with an average 5th quarter yield of 37.43%. Malagasy zebus are light weighted animals compared to the African zebus. Precocious slaughtering (before 250 kg live weight) doesn't allow a good meat yield.