ALTHOUGH there is an abundant literature on the blood and plasma volumes for the human, dog and rat, there are relatively few reports concerning these determinations in chickens. Welcker and Brandt (1903) used the wash-out technique on one hen and reported a value of 3.68 percent of the body weight. Zaitschek, whose results were reported by Latimer and Pedersen (1923), found the blood volume of 131 chickens to be 3.8 percent of the body weight. These results were obtained by weighing the blood lost after severance of the jugular vein. Pappenheimer, Goettsch and Jungherr (1939) used a dye technique and found that the blood volume of chicks of 1–50 days of age averaged about 9 percent of body weight. Their sampling time was five minutes. Newell and Shaffner (1950) used Evans Blue dye and a sampling time of ten minutes. Pino et al. (1951) employed a combination of Evans …
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Medway et al. (1959) studied this question.