Journal of the American Association of Instructors and Investigators of Poultry Husbandry最新文献

On May 14, 1919, a Rhode Island Red was found to be too heavy in the abdomen to stand erect. She was killed and examined on May 15.

Five soft-shell eggs were taken from her abdominal cavity. The eggs are shown in the cut and the weights and sizes are:

In addition to the normal yolks the eggs were filled with a mixture of albumen and water. The large size of four of the eggs was probably due to the entrance of the body liquid into the egg by osmotic pressure.

As there were masses of yolk material in the abdominal cavity, evidently a number of yolks had traversed the oviduct rapidly and fallen into the body cavity. The …

Several years ago at the autopsy of chicks which died with very few symptoms except poor growth, it was found that the lungs were either congested or filled with whitish nodules. Such nodules are usually considered diagnostic of infection with aspergillus. In this epidemic, aspergillus could not be found but instead numerous cocci were found which were identified as probably Micrococcu tetragenus.

In one lot about 50 per cent of the chicks died while the rest were greatly retarded in growth. The source of infection was referred to the litter, although it was perfectly clean and good, since Micrococcus tetragenus is known to occur in such material. In later broods, sand replaced the litter and no further trouble was experienced with the exception of one lot of chicks were placed in a make-shift shelter on grass land beneath trees on the north side of a building. The grass was cut …

Perhaps you are acquainted with the work of the $1000.00 poultry clubs in Connecticut. They have surely been a great success. As a result of this success the Connecticut Agricultural College is about to put through a plan by which at least two or perhaps three members of one of these clubs can attend the Agricultural College at Storrs, bringing their hens with them to College, and using them as a means of paying their way. The Poultry Department will rent the houses to the boys, and all of the work will be under the general supervision of the Department. The boys, on the other hand, will take entire care of their birds, buy the feed, sell the products, in fact they will own their own pens just as if they were at home. The attractive feature of this plan is that throughout the College year the boys will be …

Feeding experiments, particularly for the Middle West colleges, have taken a general trend toward the farmer's problem directly rather than toward deep scientific investigation.

At the Purdue Experiment Station we have been working for nine years endeavoring to find out about various kinds of animal protein, the proportions that should be used and their influences upon the hens. Bulletins have been published on our earlier experiments with Leghorns and duplicate experiments with Plymouth Rocks.

The farmers of Indiana have, for their hogs and cattle, an abundance of tankage and cotton seed meal and when meat scraps or skim milk are recommended they are desirous of knowing what can be done with tankage or cottonseed meal. Since our plan is to work for the farmers local needs, an experiment was run during 1917–18 comparing tankage with meat scraps, and also using a pen lacking in meat scraps. The grain ration …

Mangels and well headed cabbage afford an abundant supply of succulent food for poultry during the winter months. Green foods, which contain certain substances not necessarily found in succulents, may be supplied by sprouted oats and also by green rye in localities where conditions are favorable. Various members of the cabbage family furnish a good supply of green food during the late fall months but it is difficult to keep them in satisfactory condition during the winter. In the field they may be injured by repeated freezing and thawing. They keep well also if kept constantly frozen, but it is not easy to keep them frozen and at the same time accessible. They keep well for a time when buried but are apt to yellow sooner or later.

For a number of years past I have made trials of various methods of storing these plants with the view of finding …

General Situation

Certain sections of the old country the American soldier has seen pretty well marching through the country with a pack on his back. He may be quartered with the people in the villages for days at a time and has had a chance to become acquainted with what agricultural France and her people are really like. During my stay in the A. E. F., I saw something of Southern Scotland, England, southern, central, and northeastern France, most of Lorraine, the lower part of Luxemburg, the central section of Rhineland in Germany including the Moselle, the Ahr and Rhine river valleys. This paper is a report of poultry conditions through observations and including such that I have been able to get in interviews with the natives.

Western Europe has had a different poultry situation from our own, therefore her problems on this branch of the agricultural industry has not …

There is abundant evidence that egg production in the domestic fowl is a character that is amenable to selection, especially if the progeny test is applied. The work of Pearl and Dryden, especially, substantiates this statement. I have shown further that it is a character complex, and that certain of the elements of this complex are readily recognized. Viewed from the selection standpoint, it is evident that egg production is an example of a primary character, viz., ability to produce eggs, their number and distribution being determined by several modifying factors of genetic origin. Having reached the conclusion that egg production is a character complex, the next step, obviously is to establish the genetic character of each element of the complex, and to work out the mode of inheritance of each element. This has been attempted, but the results are limited largely to families characterized by certain elements of the …

The advocates of standard bred poultry are undoubtedly right in insisting that standard bred poultry may be good layers. This is abundantly demonstrated by numerous high class standard bred birds that are also high layers. I know from personal experience of several strains of standard bred Rhode Island Reds that can be depended upon to produce several birds out of each hundred, that will lay better than 200 eggs.

I have great faith, too, that it is possible to combine in one strain, the qualities of high average production, as distinct from high individual production, and the qualities demanded by the standard. If an average of 150 eggs per bird is considered high, I feel confident that some, at least, of the strains mentioned above, without further selection, can be handled so as to come very close to such an average.

High and low, in relation to egg production are …

The National War Emergency Poultry Federation, organized for the period of the war, has very definitely contributed to the protection and development of our poultry industry during the period of emergency. Faithful to their original aims and pledges and proud to have contributed something constructive in a period of world destruction, the officials and responsible committees of the Federation are closing the affairs of the organization and are herewith rendering the following very brief report showing the activities and accomplishments of this war emergency effort.

The National War Emergency Poultry Federation had its inception in a national poultry conference held at Chicago, Illinois, March 29th and 30th, 1918. This conference appointed certain committees with power to draft a tentative plan for a federation of all the poultry interests and allied industries of our nation. These committees, after due deliberation, called a convention of the National War Emergency Poultry Federation at …

The experiment was conducted with thirteen breeds as follows: S. Campine, S. S. Hamburg, D. Cornish, S. P. Wyandotte, G. Wyandotte, C. Wyandotte, Bu. P. Rock, Pt. P. Rock, Bu. Orpington, W. P. Rock, W-F Bk. Spanish, M. Houdans, and S. C. Wt. Leghorn.

The composit collection of eggs were saved for five days and placed in an incubator. Eighty-three per cent were fertile and of the fertile eggs 80 per cent hatched. The cocks were then removed. The test of all eggs laid by all flocks after removal of the male birds was as follows:—First day, 85 per cent fertility; second day, 91 per cent; third day, 82 per cent; fourth day, 71 per cent; fifth day, 62.5 per cent; sixth day, 50 per cent; seventh day, 63 per cent; eighth day, 53 per cent; ninth day, 29.4 per cent; tenth day, 33 per cent; eleventh day, 37.5 …