The American Breeds of Poultry: Their Origin, History of Their Development, the Work of Constructive Breeders and how to Mate Each of the Varieties for Best Results

Front Cover
American poultry journal, 1921 - Poultry - 256 pages
0 Reviews

What people are saying - Write a review

We haven't found any reviews in the usual places.


Other editions - View all

Common terms and phrases

Popular passages

Page 79 - Rhodora! if the sages ask thee why This charm is wasted on the earth and sky, Tell them, dear, that if eyes were made for seeing. Then Beauty is its own excuse for being: Why thou wert there, O rival of the rose!
Page 98 - ... averaged 20 days longer in molting than did the fed birds. The average time required to complete the molt of the three starved flocks was 93.8 days; of the three fed flocks 97.4 days. (Table IV). All this would indicate that the molting process continues much longer than is usually supposed, and that there is considerable variation in the time of beginning the molt between different individuals, and between flocks of different ages, also a wide variation in the length of time it requires individuals...
Page 98 - ... The above findings are based on this experiment only and must not be understood to be necessarily conclusive. General conclusions. The findings would indicate that with the methods employed, with White Leghorn fowls, one, two or three years old, it does not pay to "force a molt," by starvation method and that apparently it 'is good policy to encourage hens, by good care and feeding, to lay during late summer and fall, rather than to resort to unusual means to stop laying in order to induce an...
Page 98 - ... the end of the molt, than the fed hens. This may have been due to the fact that the fed hens had laid more eggs. After all flocks had resumed production there was little, if any, difference in their condition or appearance (Tables IV, V and VI and Figs. 14, 15, 18). Time required to grow feathers. It is variously asserted that the time required for the growth of a body feather on a healthy fowl is approximately forty-two days, while the time needed to develop the tail is somewhat longer. This...
Page 98 - Time and sequence of the mature molt. The first mature molt comes at the end of the first year of laying. It seems to be a necessary renewal of the worn-out plumage. Feathers, like clothes, wear out (Fig. n). In the mature molt, it was found that the rotation followed closely that of the pre-nuptial* molt before egg production commenced, — the oldest feathers being shed first. The mature molt seldom began while the hen was laying.
Page 99 - X by the feeding, the late molting hens took less time to produce a new coat of feathers than did those which molted earlier. Hens that molt early lay more early winter eggs. The hens molting before September 15, began to lay 39 days after the completion of the individual molt ; those molting after September 15 began to lay in 43 days after they were completely refeathered. The hens which molted before September 15 averaged 17 eggs each from the completion of their individual molt to April 2nd, 1907,...
Page 98 - ... laid in the heavy molting season and only one of the 65 trap-nested hens produced more than an occasional egg during that time (Figs. 16, 17 and 18). It is apparent that, as molting increased, egg-production decreased (Fig. 18, A and B, and Tables IV, V and VI). This was true almost without exception with both starved and fed flocks during each period. It was strikingly true during the starvation period. While some of the hens continued to lay after beginning to molt, and a few began to lay before...
Page 99 - ... lay in 43 days after they were completely refeathered. The hens which molted before September 15 averaged 17 eggs each from the completion of their individual molt to April 2nd, 1907, while those molting later gave 14 eggs each in the same period. Hens that molt late lay more eggs during the year. Although the early molting hens laid more winter eggs, they did not lay more eggs during the year. Those beginning to molt before September 1 5th, averaged 103 eggs, and those molting later averaged...
Page 3 - TO JOSEPH MAZZINI Take, since you bade it should bear, These, of the seed of your sowing, Blossom or berry or weed. Sweet though they be not, or fair, That the dew of your word kept growing, Sweet at least was the seed.
Page 7 - Gallus when crossed with each other, or when crossed, with the exception of G. bankiva, with the domestic fowl, produce infertile hybrids. Finally, we have not such good evidence with fowls as with pigeons, of all the breeds having descended from a single primitive stock.

Bibliographic information