 ... which ought to be persisted in, his stock has, with an occasional change of bull, become sufficiently stamped with desirable excellences, his selection of males should then be made, to eradicate defects which he thinks it desirable to get rid of....  Cattle and Cattle-breeders - 161 페이지저자: William M'Combie - 1867 - 206 페이지전체보기 - 도서 정보
 | William Charles L. Martin - 1852 - 150 페이지
...which he thinks desirable to be got rid of. " He will not fail to keep in view the necessity of yood blood in the bulls resorted to, for that will give...valuable properties to their offspring ; but he must not trust to this alone, or he will soon run the risk of degeneracy. In animals evincing an extraordinary... | |
 | Ohio State Board of Agriculture - 1868 - 750 페이지
...cross with animals with a view to establish them. This proceeding will be of the ' give-and take ' kind. He will submit to the introduction of a trifling...properties to their offspring ; but he must not depend oil this alone, or he will soon run. the risk of degeneracy." I agree generally with the above extract... | |
 | Elliot G. Storke - 1859 - 832 페이지
...a time, and often nine quarts; and when dry, they are in general readily fattened for the butcher. transmit their own valuable properties to their offspring; but he must not trust to this alone, or he will soon run the risk of degeneracy. In animals evincing an extraordinary... | |
 | Ohio State Board of Agriculture - 1868 - 760 페이지
...of. He will not fail to keep in view the necessity of tjnntl Ыоо<1 in the bulls resorted to, lor that will give the only assurance that they will transmit...must take exception to at once using even the best hull indiscriminately for a large and valuable herd of breeding cows. I hold that every bull must be... | |
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