Cod Liver Oil for Calves. 



and any increase in the amount of phosphate supplied will 

 not give a corresponding increase in the yield of crop. In 

 unfavourable seasons, when the yield of the turnip crop is 

 low, and also on soils in high condition, 4 cwt. superphos- 

 phate per acre will be found a sufficient quantity. 



An attempt was also made to estimate the feeding value of 

 roots manured with basic slag and superphosphate. For 

 this purpose similar roots from two plots at two of the centres 

 were analysed. These had received similar treatment as 

 regards nitrogen and potash, and equal quantities of phos- 

 phoric acid, supplied, however, in the form of basic slag to the 

 one plot and of superphosphate to the other. Judging from 

 the percentage of total solids, carbohydrates, albuminoids, 

 etc., the analysis of the roots from one centre seemed to indi- 

 cate that the turnips receiving slag should have afforded the 

 best feeding for stock, ton for ton ; but the results from the 

 other centre did not show any material difference in the solid 

 contents of the roots grown with the two kinds of manure. 



Cod Liver Oil as a Substitute for Cream in 

 Calf Rearing. 



The experiments in calf rearing conducted by the York- 

 shire College, Leeds, at Garforth, in 1899, and noticed in this 

 Journal in 1900* have been repeated, and a report on the 

 more recent results has now been drawn up by Professor R. 

 S. Seton. The new series of experiments were conducted for 

 a longer period, not only for the purpose of confirming the 

 results obtained in 1899, but also to ascertain whether the 

 cod liver oil might not be given with advantage after wean- 

 ing to the calves which had become accustomed to it. 



Twelve calves, all about a week old, were purchased 

 between March 19th and 24th, 1900. They were fed with 

 whole milk twice a day, the allowance per head being at 

 first six pints per day. The quantity was gradually increased 

 until each calf, when about six weeks old, was receiving 

 eight pints daily. At this age they were weighed, and 

 divided into two lots ; Lot I. (of four calves) to be reared on 



* Vol. VII., June, 1900, p. 51. 



