June. 1940] AGRICULTURAL RESEARCH IN N. H. 33 



cate that whole milk feeding can be discontinued at between 7 and 8 

 weeks of age and that skim milk can be fed dry as an ingredient of 

 the grain ration so as to accomplish normal growth and health. 



Following a survey of calf-feeding methods on New Hampshire 

 larms, twenty-five to thirty dairymen will submit detailed monthly 

 reports on a calf- feeding study in which feed and growth records are 

 tabulated and checked by the D.H.I.A. tester. In addition to this 

 study, a program is to be launched by the county agricultural agents 

 in cooperation with the farm management and dairy departments 

 whereby limited data on growth and feed records are to be secured 

 from 700 to 750 dairy herds in Xew Hampshire. These data should 

 include upwards of 1.500 animals and prove of much value in deter- 

 mining farm practices in the raising of dairy replacements. 



(Bankhcad-Jorics Fund) 



Efficiency of Dairy Herd Management Practices as Revealed by 

 Analyses of Permanent Records of D. H. I. A. Herds 

 in New Hampshire 



Work on this project to date has consisted principally of tabu- 

 lating data from D.H.I.A. records to use in the analyses. All pro- 

 <luctic)n records must be converted to a common mature equivalent 

 basis and feed tabulations made for both the milking and the dry pe- 

 liods. In addition, breeding history is recorded so that inheritance 

 studies can be made. To date information of this type is available 

 for 40 herds numbering approximately 2.500 cows. It is felt that 

 flata on 5,000 cows should be tabulated before detailed analyses are 

 made, in order to have significant numbers to overcome individual 

 and environment factors. (Purnell Fvnd) 



The Relation of the Conformation of the Dairy Cow to Her Milk and 

 Butterfat Production 



Ante-mortem and post-mortem data were secured from three ani- 

 mals during the past year, making a total of thirteen animals studied 

 to date under this project. The information was tabulated and for- 

 warded to Washington for inclusion with similar data from other 

 stations cooperating on this project, reports K. S. Morrow. 



Xo attempt has been made to analyze individual differences in the 

 data altliough interesting anatomical variations are observed as the 

 data accumulates. ( Bankhcnd-Jones Offset Fund) 



The Normal Growth of Dairy Heifers 



All dairv calves born in the universitv dairv herd are wei""hed at 

 weekly intervals until six months of age and at monthly intervals 

 from that age until twelve months. (Some of these animals may be 

 on experimental diets and are reported elsewhere.) Studies of these 

 data will indicate normal growth for animals as handled under 

 the methods used w^ith the university herd and will serve as stand- 

 ards against which comparisons of experimental rations can be 

 made. K. S. Morrow is in charge of the work. 



(Miscellaneous Income) 



