PROCEEDINGS STATE AGRICULTURAL CONVENTION 107 



to time of maturity of the fruit: Duchess, Whitney No. 20, Wealthy, 

 Tolman Sweet, Grimes Golden, Golden Delicious, Jonathan and Mam- 

 moth Black Twig. The grape and other fruit exhibits were just as fine, 

 relatively, as the apple show and were equally well displayed. In short, 

 the whole fruit show was a great credit to the state. 



The following members of the extension service of the Iowa State 

 college judged the fruit show: H. E. Nichols, head judge; C. V. Hol- 

 singer judged plums, pears, peaches and grapes; W. J. Kocken, apples, 

 and C. S. Holland, apples. 



An exhibit showing in a general way what members of the various 

 cow testing associations in Iowa are learning from weighing the milk of 

 their cows and testing it for butter fat was brought out by the Iowa 

 State College. It consisted of six cows, half of which were scrubs and 

 half grade Holsteins. Production records showed that the three scrubs 

 in 1921 yielded a gross profit, figuring the milk sold in the fluid state, 

 varying from $21.62 to $29.40 per head. Had the butter fat been sold 

 the profit would have varied from $11.51 to $21.12 per cow. By gross 

 "profit" in these cases is meant the cash income from milk or butter fat, 

 less cost of the feed consumed by the cows. In the case of the three 

 grade Holsteins — much better producers — the gross profit, figuring the 

 milk sold in the fluid state, ranged from $87.94 to $95.85 per head. On 

 the basis of butter fat sales, the gross profit ranged from $72.29 to $78.30 

 per cow. 



These records were all made in 1921 and showed very clearly the ad- 

 vantage of keeping good cows. In the case of the scrub cows the cost 

 of milk production varied from $1.05 per 100 pounds to $1.37, while on 

 the butter fat basis costs ranged from 14 to 21.1 cents per pound. 

 On the other hand the grade Holsteins produced milk at costs ranging 

 from 49 cents to 57 cents per 100 pounds while on the fat basis costs 

 ranged from 14 cents to 16.5 cents a pound. On the other hand some 

 records were displayed on a chart showing that a high grade herd of 

 Jerseys, in the course of three years, produced profits per cow — difference 

 between feed cost and price brought by products sold — ranging from 

 $114.27 to $194.84. In a high grade Guernsey herd profits ranged from 

 $67.68 to $153.35 per cow in a series of three years. 



A chart was also shown on which the results obtained at the college in 

 grading up by breeding common scrub cows to registered bulls of Jersey, 

 Guernsey and Holstein breeding were recorded. Third generation heifers 

 from these different lines of breeding are now on the college farm that 

 show wonderful improvement over the original scrubs. So striking are 

 these results that farmers who have learned of this work are beginning 

 to realize the value of using pure-bred sires of the right type for grading 

 up purposes. These exhibits proved very interesting to thousands of 

 farmers, judging from the attention they bestowed upon them. 



The wool exhibit made by the Iowa Fleece Wool Growers' Association 

 this year in the horticultural building was unusually fine. No less than 



