369 



(12) The best market tomatoes appear from our tests to be Ignotum, Favorite, Bay 

 State, Atlantic, aud perliaps Ruby among the red varieties; Beauty, Miicado, aud 

 possibly Potato Leaf among the pink or purple varieties; Golden Queen among the 

 yellow sorts. 



(13) Among the novelties, Ruby and Chemin Market are most promising. 



New York Cornell Station, Bulletin No. 22, November, 1890 (pp. 10). 



On the effect of a grain ration for cows, with pastur- 

 age AND WITH GREEN FODDER, I. P. EoBERTS, M. AGR., AND H. H. 



Wing, B. Agr. 



Grain ration for coics at pasture. — This is in continuation of an ex- 

 periment begun at this station in 1889 (See New York Cornell Station 

 Bulletin No. 13 ; or Experiment Station Record, Vol. I, p. 280). The 

 object of these exi)eriments was to test the desirability of feeding a 

 grain ration to cows at pasture by studying the effect upon the yield 

 and quantity of the milk, the weight of the animals, and the natural 

 decrease in milk flow with the advance of the period of lactation. Six 

 cows were divided into two lots of three cows each, the lots being 

 as nearly alike as practicable with respect to age, milking quality, live 

 weight, and time since calving. Each lot contained one Holstein, one 

 Jersey, and one native cow. The experiment extended from May 25 

 to September 27, eighteen weeks. During this time lot 1 had pastur- 

 age alone ; and lot 2, pasturage and a mixed grain ration, consisting of 

 200 pounds of wheat bran, 150 pounds of cotton-seed meal, and 15 

 pounds of malt sprouts, the native cows receiving 6 pounds of this 

 mixture and the other two 9 pounds daily. As it has been urged that 

 " the effects of a grain ration would probably be more marked with 

 cows that had been poorly wintered and that came into milk in the 

 spring thin in flesh than with our cows, that are kept in good flesh 

 all the year round," two native cows, which had calved at the same 

 time and "were both very thin in flesh," were used in the experiment 

 of 1890, one in each lot. " The pasture, the same as was used in 1889, 

 was almost entirely blue-grass, on a dry, gravelly upland soil." The 

 cows were in the pasture both day and night. The pastures were in 

 good condition, except from July 13 to August IG, "during which time 

 the pastures became very dry and bare and wore supplemented with 

 second-growth clover." 



Analyses were made of the milk at first three times each week, and 

 later three times each fortnight, the samples for this purpose being mix- 

 tures of the morning and evening milkings of the three cows of each lot 

 for one day. The average dail^^ yield of milk, the average percentage 

 of total solids and fats in the milk, and the average production of but- 

 ter fat per cow are tabulated for each lot. The total amount of butter 

 fat produced per cow during the entire experiment was, for lot 1 (pas- 

 turage alone), 118.14 pounds, and for lot 2 (pasturage and grain), 119.72 

 pounds. 



