LESSONS ON POULTRY FOR RURAL SCHOOLS. 17 



water and clean food will prevent many troubles if the pupils persist 

 in such practice. Neglect to open windows during the day results 

 in high temperature and poor ventilation, rendering the fowl sus- 

 ceptible to colds, roup, and other troubles. Help pupils to get 

 advice as to any diseases which appear. 



Correlations.— The school course in physiology and hygiene includes 

 topics in relation to digestion, respiration, ventilation, and general 

 sanitation. Many of these principles apply equally well to poultry 

 and other animals, and this correlation will prove helpful to both 

 subjects. If a poultry club is to be organized, have the pupils write 

 letters applying for membership, information, etc. 



LESSON SEVEN. 



SUBJECT: EGG SELECTION. 



JANUARY. 



Topics for study. — (1) Separation of breeding flock from layers. 

 Elimination of males from laying flock. (See fig. 10.) Frequent, 

 regular, careful collection of eggs. 



(2) Market eggs: What to select. Clean, uniform eggs. Test 

 any doubtful eggs. Avoid freezing. Grade to conform to best 



■M1WWMIMI I I 



TOTsU. /.OS'S Z^.S^i 



. 23. 7. / 



^BHKkS-OSS IT FS4&A1 WfflfWA /A- TOIA/K I | //V 7-&A/V-S/T 



Fig. 10.— Horizontal graph teaching the desirability of infertile eggs for market. 



local market. Show the loss resulting when a few low-grade eggs 

 lower the grade of a whole case. How shall we dispose of the culled 

 or defective eggs ? 



(3) Eggs for incubation: The source. Selection and breeding. 

 Use only high-class fowls. Begin now to grade up to pure breds. 

 Pure-bred males from other flocks are desirable. Necessity of vig- 

 orous constitutions. Handling the eggs. When begin to save for 

 hatching? How long may they be kept? What temperature is 

 best ? It is much better to buy eggs for hatching than to use eggs 

 from scrub fowls. 



References. — Farmers' Bulletins 528; 562; 287, p. 40; 594, pp. 

 1-4; 682. The State agricultural college is the best authority con- 

 cerning the climate and other local factors which may determine the 

 time for hatching. Consult State agricultural college bulletins. 

 61395°— Bull. 464—16 3 



