A statistical study of the relation between various expressions of fertility and vigor in the Guinea pig
The primary object of the present study was to determine the relation between various measurable components of fertility and vigor with reference to the interval between the reaction of each to common environmental influences. The relationships were measured by simple correlations between the indices for eight characteristics which were calculated for 217 consecutive months (December, 1906, to December, 1924, inclusive) from the records on the inbred guinea pigs in the colony belonging to the Animal Husbandry Division, Bureau of Animal Industry of the department. The litter sizes in this stock varied from 1 to 8, averaging 2.58 young per litter. It is of interest to note that 82.79 percent of the entire population was born in litters of 2, 3 and 4
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| Format: | biblioteca |
| Published: |
1931
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| Subjects: | CUYES, GENETICA, CONSANGUINIDAD, ANALISIS ESTADISTICO, |
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