118 ANNUAL REPORTS OF DEPARTMENT OF AGRICULTURE. 



bureaus in clesi<;nin<; similar equipment. Considerable refrif^erationi 

 work was done in coniu'ction with the bureau plant, tlie (iri-ove City 

 creamery, and the experimental abattoir at Beltsville. An air washer 

 antl cooler was designed for the experimental cheese rooms, and a num- 

 ber of special plans were prepared for outside concerns. 



DAIRY-CATTLE BREEDING. 



The comprehensive dairy-cattle breeding experiments, including 

 inbreeding, line breeding, and outcrossing, which Avere begun last 

 year for the purpose of obtaining definite knowledge of the funda- 

 mental principles which underlie dairy cattle improvement, have 

 been expanded, and some progress has been made. A Jersey bull and 

 31 Jersey cows were procured for the inbreeding and outbreeding ex- 

 periment at the Beltsville farm, and a new sire was obtained to head 

 the Holstein-Friesian line-breeding experiment. Nine foundation 

 animals have completed creditable yearly records ranging from 404.5- 

 to T77.T pounds of butterfat. 



Bulls have been lent to the New Jersey and West Virginia experi- 

 ment stations for cooperative breeding experiments, and a cooperative 

 experiment has also been begun at the Walker-Gordon farms, Plains- 

 boro, N. J. . 



A compilation of Holstein-Friesian advanced-register data for 

 studies pertaining to principles of breeding has been completed and 

 ]3repared for publication. Similar studies are being made of Guern- 

 sey advanced-register and Jersey register-of -merit data. 



MEAT INSPECTION DIVISION. 



The Federal meat inspection, conducted b}- the Meat Inspection- 

 Division, with Dr. R. P. Stcddom as chief, shows a decline in the total 

 number of animals slaughtered, in the quantity of meats processed, 

 and in the amount of meat and product certified for export, as com- 

 pared with the high marks of the preceding year, though the number 

 of animals slaughtered is greater than for any year prior to 1919. 



INSPECTION OF DOMESTIC MEATS. 



Inspection was conducted at 897 establishments in 262 cities and 

 towns, as compared Avith 895 establishments in 2G-3 cities and towns 

 during the fiscal year 1919. Inspection was begun at 65 establish- 

 ments and withdrawn from 67 during the year, as compared with 

 84 and 73 respectively, during. the fiscal year 1919. Among the estab- 

 lishments at which inspection was begun were three at which horses 

 were slaughtered. Inspection was withdrawn from 57 establish- 

 ments on account of discontinuance of slaughtering or of interstate 

 business, from 4 by request, from 4 on account o^ consolidation, and 

 from 2 which were granted exemption from inspection. 



ANTE-MORTEM AND POST-MORTEM INSPECTIONS. 



The ante-mortem and post-mortem inspections are given in the 

 following tables : 



