GROWTH AND NUTRITION 93 



Table II 



WEIGHT OF YOUNG OF GUINEA PIGS, AS AFFECTED BY PLANE 

 OF NUTRITION OF THE MOTHER 



Well Fed Wt. of 



young fer 

 Grams gm. of mother 



I. 3 young, born June 3, weighed 210 0.35 



Mother weighed 585 



II. 2 young, born Oct. 2, weighed 200 0.40 



Mother weighed 480 



III. 3 young, born Nov. 5, weighed .... 225 0.37 

 Mother weighed 600 



IV. 2 young, born Nov. 16, weighed . . . . 215 0.39 

 Mother weighed 545 



V. 2 young, born June 4, weighed . . . . 168 0.33 



Mother weighed 505 



VI. 4 young, born Oct. 15, weighed . . . . 184 0.33 



Mother weighed 555 



VII. 3 young, born Nov. 10, weighed . . . .221 0.30 



Mother weighed 725 



Average number of young, 2.7 0.35 



Underfed 



I. 2 young, born June 3, weighed . . . . 133 0.22 



Mother weighed 595 



II. 3 young, born Dec. 29, weighed . . . . 139 0.27 



Mother weighed 507 



III. Young, No. not noted, born Sept. 18, weighed . 120 0.25 

 Mother weighed 480 



IV. 2 young, born May 1, weighed . . . . 130 0.23 

 Mother weighed 639 



Average number of young, 2.5 0.248 



Table II indicates clearly that the well-fed mothers produced 

 litters of about the same weight regardless of the number in the 

 litter. It is also evident that the underfed mothers gave birth to 

 young that were distinctly subnormal in size. 



The relation between the plane of nutrition of the dams dur- 

 ing the gestation period, and the birth weight of the young has 

 received considerable study at Missouri University. It is gen- 

 erally believed by dairymen that poorly fed cows will have 



