HANDLING OF RADIOISOTOPES WITH ANIMALS AND PLANTS 



133 



for this purpose have been presented by Hansard, Comar, and Plumlee 

 (17) which may be consulted for details that are not included below. 



In general, the animal is maintained in a stanchion so that the feces are 

 dropped directly into a collection pan. Urine is collected from males 

 directly or by a rubber funnel which is attached to the animal by a har- 

 ness. Collection of urine from females is accomplished by an indwelling 



Feed Rock and Stanchion 

 Detail 



Canvas covered 

 inside 



Feces 

 Coftfainer 

 \^Shield Defoil 



Stoli Oefoil 



Feces Contoiner Defoil 



Fig. 4-10. Schematic diagram of metabolism stall for the collection of excreta from 

 cattle. With given dimensions, this will accommodate 1200-lh animals (for smaller 

 animals it can be scaled down). {From Sam L. Hansard, C. L. Comar, and M. P. 

 Plumlee, Radioisotope Procedures with Farm Animals, Nucleonics, 9: 13-25, 38-45 

 (1951).] 



catheter or by cementing 3-in. Gooch tubing around the vulva which 

 directs the flow of urine into a collection bottle. The animals can stand 

 or lie down at will, and after they have become accustomed to confine- 

 ment, they will eat normally. They soon learn not to step back off the 

 stand into the feces pan. 



Cattle. Figure 4-10 shows the details of the metabolism stand, includ- 

 ing the feedbox and stanchion, the feces collection pan made of sheet 

 metal, and the splatter shield. The stanchion as shown may be replaced 

 by a commercial metal stanchion which is easier to operate and allows the 

 animal greater freedom of movement. A 5-gal carboy is placed alongside 



