Carcass characteristics and body weights are major determinants of profitability and sustainability of any animal enterprise. Blood as a component of an animal's biological system plays a vital role in accessing the health and productive status of an animal. This study was undertaken on Japanese quails to evaluate the body weight, carcass characteristics and blood constituents at six weeks. The results obtained showed that mean body weight is 133.63+0.96 and sex has a significant (P0.05) effect on body weight favouring females over males. Carcass characteristics is significantly (P0.05) influenced by sex while blood constituents are significantly (P0.05) different for haemoglobin (Hb), red blood cell count (RBC) and mean corpuscular haemoglobin concentration (MCHC). Hb and MCHC revealed a positive, moderate and significant phenotypic correlation while the genetic correlation for Hb, MCHC, RBC and packed cell volume (PCV) showed a positive, high in magnitude and highly significant (P0.01) correlation. It was concluded that this high correlation estimates can be exploited in planning breeding programme for Japanese quails.
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Kosshak et al. (2014) studied this question.
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