No, fi DEPARTMENT OF AC KK! LTUKIv !)i:^ 



PERIOD OF GESTATION IN DOMESTIC ANIMALS. 



FROM ANIMAL INDUSTKY. (Shaw.) 



The average duration, approximately, of the period of gestation 

 ill domestic quadr.upeds may be giv;en as follows: 



The ass, 3(35 days. The sow, 118 days. 



Tlu^ mare, 330 days. The dog, ()3 days. 



Tile cow, 282 days. The cat, 50 days. 



The sheep, 149 days. The rabbit, 30 days. 



The goat, 149 days. The guinea-pig, 21 days. 



The average duration, apin-oximately, of the period in hatching 

 the eggs of the various domestic breeds of fowls may be set down 

 as follows: 



The goose, 30 days. The guinea-hen, 26 days. 



The turkey, 29 days. The hen, 21 days. 



The duck, 29 days. The pigeon, 18 days. 



The pea-hen, 28 days. 



The extremes in the duration of (h*e period of gestation in the 

 mare, the cow, the ewe and the sow may be set down as follows: 



The mare, 295 days to 370 days. 



The cow, 205 davs to 300 davs. 



The ewe, 145 davs to 154 davs. 



The sow, 110 days to 118 days. 



The extremes in the duration of the period of incubation in the 

 various classes of domestic fowls named below may be given as 

 follows: 



The goose, 27 days to 33 days. 



The turkey, 20 days to 30 days. 



The duck, 20 days to 32 days. 



The pea-hen, 28 days to 30 days. 



The guinea-hen 25 days to 26 days. 



The pigeon 16 days to 20 days. 



