. The Biological bulletin. Biology; Zoology; Biology; Marine Biology. EFFECTS OF LIGATING TESTES OF HEN-FEATHERED COCKS. 25! The first bird was a pure Sebright male more than a year old. It was a typical bird of its race, , it was completely hen-feath- ered. This bird had been used in an experiment a month earlier to induce beri-beri, but had fully recovered. I had seen a state- ment in Science that young chicks are peculiarly susceptible to a lack of vitamines in their food and that beri-beri can be induced. FIG. 6. Hen-feathered, back-cross, rose comb, No. 270, June, 1919. by a diet free
. The Biological bulletin. Biology; Zoology; Biology; Marine Biology. EFFECTS OF LIGATING TESTES OF HEN-FEATHERED COCKS. 25! The first bird was a pure Sebright male more than a year old. It was a typical bird of its race, , it was completely hen-feath- ered. This bird had been used in an experiment a month earlier to induce beri-beri, but had fully recovered. I had seen a state- ment in Science that young chicks are peculiarly susceptible to a lack of vitamines in their food and that beri-beri can be induced. FIG. 6. Hen-feathered, back-cross, rose comb, No. 270, June, 1919. by a diet free from or low in vitamines. The possibility that the testes might also be affected by such a diet, and cause a change in a hen-feathered male of the same kind as that brought about by castration suggested the experiment. Two hen-feathered cocks were used. Both were fed on white rice for five weeks. No changes were observed to take place in their combs. Sud- denly the effect of the diet became apparent, and in the course of. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Marine Biological Laboratory (Woods Hole, Mass. ); Marine Biological Laboratory (Woods Hole, Mass. ). Annual report 1907/08-1952; Lillie, Frank Rattray, 1870-1947; Moore, Carl Richard, 1892-; Redfield, Alfred Clarence, 1890-1983. Woods Hole, Mass. : Marine Biological Laboratory
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Keywords: ., bookauthorlilliefrankrat, booksubjectbiology, booksubjectzoology
