The Journal of experimental zoology . ^o ^ 5o ;z3 Jo 5o y3 ?? «! ?3 53^ T 1 r 1 1 1 r 1100 Coo -¥7J-Si-0-276- I 00 0 Chart N02II VTROWTH L/URVES IM OERvlCE GfROOf Litter Size 12 /?_ .51 _ 0 _ 0 /o::: o 151 / 20Z o /ASE5 1« DAYS 7 To Tj J« 2T 3o sT ¥o 93= y3 yT 6S ST 75 TT ^3 a5= ^o SEXUAL ACTIVITY OF MALE RABBITS 589 1 1 r- n 1 r T 1 1 r Chart NO HE Grand AveRAC7E Ijrovoth L/urves/All Service Groups / S /O. -a a£ IN /PAV5 -jv ;. ].? a I . I l_ tr-S J-J ^X i^ j,:.- L may not be made with absolute justice because, as will be shownlater, the litters in the advanced service groups tend to besm
The Journal of experimental zoology . ^o ^ 5o ;z3 Jo 5o y3 ?? «! ?3 53^ T 1 r 1 1 1 r 1100 Coo -¥7J-Si-0-276- I 00 0 Chart N02II VTROWTH L/URVES IM OERvlCE GfROOf Litter Size 12 /?_ .51 _ 0 _ 0 /o::: o 151 / 20Z o /ASE5 1« DAYS 7 To Tj J« 2T 3o sT ¥o 93= y3 yT 6S ST 75 TT ^3 a5= ^o SEXUAL ACTIVITY OF MALE RABBITS 589 1 1 r- n 1 r T 1 1 r Chart NO HE Grand AveRAC7E Ijrovoth L/urves/All Service Groups / S /O. -a a£ IN /PAV5 -jv ;. ].? a I . I l_ tr-S J-J ^X i^ j,:.- L may not be made with absolute justice because, as will be shownlater, the litters in the advanced service groups tend to besmaller. A rough comparison of all progeny may be made inthis way, however. Charts 1 to 12, inclusive, present the results in a form thatmay be easily grasped by the reader, but there are a few pointsrevealed by a study of these graphs that require some but few exceptions, the 20th-service graph lies above allother graphs. This is a striking and surprising result and thequestion at once arises as to the cause of the almost uniformheavier birth weight and more rapid growth of the 15th- and20th-service litters compared with litters of the same size fromless advanced services. The results are in direct contrast towhat, according to the traditions of breeders, would be their face they actually show that the heavier the service ofthe male, the more thrifty the offspring. It s
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Keywords: ., bookauthorwi, bookcentury1900, bookdecade1910, booksubjectzoology
