. The Biological bulletin. Biology; Zoology; Biology; Marine Biology. EFFECTS OF LIGATING TESTES OF HEN-FEATHERED COCKS. 255 a testis appeared almost normal in size. The comb measured one and a half inches high, and two and three quarters inches long. It is evident that the failure to change over except to a very small extent was due to the failure of the operation. The fourth bird, No. 62, was a yellow, back-cross, single comb, hen-feathered cock, Fig. 9. Its testes were ligated on July 10,. FIG. 10. Same as Fig. 9, November 15. 1919. He showed at first some effect of the operation, but his c
. The Biological bulletin. Biology; Zoology; Biology; Marine Biology. EFFECTS OF LIGATING TESTES OF HEN-FEATHERED COCKS. 255 a testis appeared almost normal in size. The comb measured one and a half inches high, and two and three quarters inches long. It is evident that the failure to change over except to a very small extent was due to the failure of the operation. The fourth bird, No. 62, was a yellow, back-cross, single comb, hen-feathered cock, Fig. 9. Its testes were ligated on July 10,. FIG. 10. Same as Fig. 9, November 15. 1919. He showed at first some effect of the operation, but his comb soon began to enlarge again. On November 15, he was still hen-feathered (Fig. 10). A comparison of the feathers of July 10 with those of November 15, Fig. n, a, a1, b, b1, etc., shows little change. When opened at this date no trace of the testis was found on the left side. On the right side a large piece of testis-like tissue was present in a sheath tightly adherent to the body wall. It was opened and some very loose tissue (?) taken out. This was preserved for examination and the bird was closed up. It was kept alive until March 15. Its feathers at this time are shown in Fig. u, a2, b2, c1, d2. The comb was large and the bird appeared to be nearly hen-feathered. It was killed and examined. On the left side there were two small pieces of testis which together were no larger than a pea. On. 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
