Poultry culture sanitation and hygiene . itoneal region; that is, the lower and lateral walls ofthe abdomen (Fig. 40, No. 6). When the hen ceases to lay,this storehouse begins to fill with fat covering over the pelvicarch, causing the arch to become blunt. The abdomen nowtakes on a hard texture. The pelvic arches come closer to-gether and as the intestine and oviduct shorten and becomesmaller the distance from the breast bone to the pubic bonebecomes less. A hen cannot hold enough reserve material to form an egg aday, so she skips. The power to take in and metabolize food THE PROBLEMS IN MATIN
Poultry culture sanitation and hygiene . itoneal region; that is, the lower and lateral walls ofthe abdomen (Fig. 40, No. 6). When the hen ceases to lay,this storehouse begins to fill with fat covering over the pelvicarch, causing the arch to become blunt. The abdomen nowtakes on a hard texture. The pelvic arches come closer to-gether and as the intestine and oviduct shorten and becomesmaller the distance from the breast bone to the pubic bonebecomes less. A hen cannot hold enough reserve material to form an egg aday, so she skips. The power to take in and metabolize food THE PROBLEMS IN MATING AND IN EGG PRODUCTION 107 varies with individuals and is an inherited cliaracter. Thelaying period commences slow, then is intensive, and slowsdown again near the end, or as the bird passes into her vaca-tion period. The later in the year a hen lays, the less the chance to pickup large amounts of pigment. For this reason late layerslaying over a period of eight to ten months are not so likelyto regain high color during their 4 Fig. 40.—Normal functionating reproductive organs of a Single CombWhite Leghorn hen. 1, Ova forming yolks; 2, folds of the oviduct; 3, anegg in the shell-gland portion (uterus); 4, rectum; 5, the retroperitonealfat storehouse; 6, the hver. Birds may have an inherited tendency to high egg produc-tion but by improper feed and no animal feed, as milk ormeat meal, will lay poorly and hence molt early, whereas ifthey had been properly fed and given milk or meat meal orboth, they would have laid more eggs and molted in culling care and feed must be. taken into consid-eration. Culling should be done in July and August. A METHOD OF JUDGING FOWLS FOR EGG PRODUCTION As Formulated at the Judging School held at CornellUniversity, Ithaca, N. Y. July 1-6, 1918, and Approved by 108 POULTRY CULTURE the American Association of Instructors and Investigators inPoultry Husbandry. In order to lay well a bird must have a sound body. As afirst con
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Keywords: ., bookcentury1900, bookdecade1920, booksubjectpoultry, bookyear1921
