DIVISION OF ANIMAL HUSBANDRY 561 



SESSIONAL PAPER No. 16 



Fresh air is admitted through the walls at floor level and conducted to a height 

 of one foot above floors. For this purpose, 6-inch sewer-pipe elbows were installed 

 in the wall during construction. A cement casing guards this on the inside. 

 Ventilator boxes on the outside of wall, extending 3 feet above pipe and with openings 

 on sides at top prevent strong direct air currents, yet supply a uniform, adequate 

 flow of fresh air to the barn. 



The area of intake pipe per head is about 14 square inches. 



The outlets are three in number, two of which are from the cow barn and one 

 from the root cellar and digestion room. Each outlet is 18 inches square, inside 

 diameter, and is thoroughly insulated to prevent condensation of moisture. These 

 outlets are not placed in the centre line of building but alternately on each side, 

 extend from ceiling of stable to roof and follow the roof to peak of barn, thus 

 straddling the hay track in loft. The total area of outlet for the cow stable is 618 

 square inches, or 27 square inches per cow. 



Both incoming fresh air and outgoing foul air currents are controlled by 

 dampers, thus giving uniformity to both air currents and temperature. 



The windows of this barn throughout are in two sashes, the upper of which is 

 hinged to the lower and opens in from the top. They may be tilted in at any angle 

 by means of a cord operating a small pulley on a worm spindle. This is easy to 

 operate, is cheap, and prevents the slamming of windows. When warrn weather 

 necessitates more air current than admitted through the fresh air intakes, the win- 

 dows are opened as needed. 



The ventilation of the root cellar is on the same plan, although differing some- 

 what in construction. Fresh air is conducted through the walls at a height of 6 feet 

 above the floor. Slatted flues conduct the air downward to slat sided floor ventilators, 

 which in turn converge to the foul air outlet in centre. The latter is slatted to 

 within 6 inches of the ceiling, from which it is insulated to the outlet on roof. Both 

 the intakes and outlet are controlled by dampers. The roots in this cellar cool and 

 dry very rapidly in the fall and have kept exceptionally well to date. 



9. Accommodation. 



The cattle barn will accommodate 24 milch cows standing in all-steel stalls and 

 tied by means of swinging steel stanchions. 



The digestion experimental room will accommodate two animals and all neces- 

 sary appliances. 



A separate wash and locker room with well-equipped milk room adjoining, facili- 

 tates cleanliness of the barn, the stablemen and the milk. 



A root cellar, under the feed and digestion rooms, accommodates 3,000 bushels 

 of roots. 



A meal room over feed room is fitted with bins. Meal chutes convey meal to the 

 feed room below. A cut-straw chute also leads into feed room. 



A silo, opening into feed room, has over 200 tons capacity. This will provide 

 summer as well as winter silage. 



A litter carrier is installed, which takes manure to a short line track outside 

 of barn and drops it into a vehicle, in which manure is hauled direct to field. 



An important feature in this barn is a dust proof hay chute which conveys the 

 hay from loft to the floor of stable. Experiments already conducted have proven the 

 great worth of this in eliminating the bulk of dust from the stable atmosphere, thus 

 facilitating the keeping of barn clean, and the production of pure and certified milk. 



The distribution of feed is done by means of two low, three-wheel trucks. The 

 meal truck is fitted with bins, hence will accommodate several kinds of meal. 

 Experience with these trucks, as well as the suspended feed carriers, has resulted 

 most favourably to the former method. 



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