A CASE OF TWINNING IN DAIRY 



CATTLE 



C. C. Hayden 



Ohio Agricultural Experiment Station, Wooster 



GRACE DARLING HENGERVELD 242862, DAM OF FIVE SETS OF TWINS AND TWO 



SINGLES (Fig. 13.) 



GRACE DARLING HENGER- 

 VELD, 242862, a purebred Hol- 

 stein-Friesian cow, known as 

 No. 90 (Fig. 13) in the Ohio Agricultural 

 Experiinent Station herd, has conceived 

 twins five times out of seven. 



Grace belongs to a prolific family. 

 Her granddam (No. 57) is now 14 years 

 old and calved the 11th time, Novem- 

 ber 21 ; 65 calves have been born in the 

 herd from her and her female progeny. 

 Four females which might have pro- 

 duced additional progeny b^- this date 

 were sold, and two died. Had the four 

 not been sold, 10 more might have been 

 added. Of the progeny, 31 were fe- 

 males and 34 were males. 



The great-granddam (No. 3i) of 

 Grace Darling Hengerveld was bred 

 to a son of Sarcastic Lad, and produced 

 No. 57. She was again bred to the 



same sire and produced twins — male 

 and freemartin. 



No. 57 was bred to her sire and pro- 

 duced No. 70, and later a set of twins — 

 male and freemartin. Bred to Marcella 

 Hengerveld De Kol, she produced 

 No. 107, who gave birth to one set of 

 twins — male and freemartin. 



No. 70 gave birth to nine calves in- 

 cluding No. 90 (the cow mentioned 

 above) who has calved as follows: 



1st, No. 12-i by her own sire, Marcella Heng. 

 De Kol 70519. 



2d, twins, males, by her own sire Marcella 

 Heng. De Kol 70519. 



3d, No. 163, by her own sire, Marcella 

 Heng. De Kol 70519. 



4th. twins, males, (aborted) by King Pontiac 

 De Kol Spr. Brook 150875. 



5th, twins, male and freemartin, by same 

 bull. 



6th, twins, male and freemartin, by same 

 bull. 



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