North American Cerambycid Larvae;—F. C. Craighead, Dominion of Canada Department of Agriculture, Bull. No. 27, New Series, (Technical) 150 pages, 44 plates, 8 text figures, Ottawa, 1923. (Sold by the King's Printer, Ottawa, Canada, Price $1.00)

1925 ◽  
Vol 57 (2) ◽  
pp. 51-52
Author(s):  
J. M. Swaine
Keyword(s):  
North American ◽  
Department Of Agriculture ◽  
Canada Department

A Report on Some North American Arctic and Subarctic Ichneumoninae

1956 ◽  
Vol 88 (8) ◽  
pp. 477-487 ◽  
Author(s):  
Gerd H. Heinrich
Keyword(s):  
New Species ◽  
North American ◽  
Department Of Agriculture ◽  
Arctic Species ◽  
Canada Department ◽  
North American Arctic ◽  
Defence Research ◽  
Insect Survey ◽  
Department Of National Defence ◽  
National Defence

The following contribution to our knowledge of the Ichneumoninae of the boreal parts of Canada and of Alaska is based mainly on material obtained by the Northern Insect Survey, which is a co-operative project of the Canada Department of Agriculture and the Defence Research Board, Canada Department of National Defence.The contribution brings forward 12 new species and subspecies 3 of them being represented by both sexes, 9 by the female sex only. Some arctic species already named before or regarded as holarctic elements will be treated in a separate publication.

DIFFERENCES IN MARKET QUALITY BETWEEN BROILER STRAINS AS EVALUATED BY MARKET GRADING

1959 ◽  
Vol 39 (1) ◽  
pp. 121-127
Author(s):  
E. S. Merritt
Keyword(s):  
Body Weight ◽  
Random Sample ◽  
Market Quality ◽  
Department Of Agriculture ◽  
High Positive Correlation ◽  
Positive Correlation ◽  
Canada Department

Chicks from 10 broiler strains were randomly allotted and reared at three farms. At 10 weeks of age a random sample consisting of 60 birds of each strain, with an equal number of each sex, was taken at each farm, slaughtered and market graded. At each farm, an official inspector graded the birds according to the standards of the Canada Department of Agriculture. Each bird was graded for the four grade factors: conformation, fleshing, fat and dressing.The number of birds in each grade class was not independent of farm, sex or strain. The 10 strains, ranked on grade scores, tended to rank in the same order at each farm, although the agreement was better for some grade factors than others, and was better when based on males than on females. On a strain rank basis, the grade scores for any one grade factor were not, in general, indicative of the scores for any other grade factor. Also on a strain rank basis, there was a high positive correlation between breast angle and grade scores for fleshing: body weight was not correlated with grade scores for any of the four grade factors, with the possible exception of conformation in the case of males.

Holarctic Elements Among the Ichneumoninae of Canada

1956 ◽  
Vol 88 (11) ◽  
pp. 647-652 ◽  
Author(s):  
Gerd H. Heinrich
Keyword(s):  
Department Of Agriculture ◽  
Canada Department ◽  
Defence Research ◽  
Insect Survey ◽  
Department Of National Defence ◽  
National Defence

The fallowing records represent a supplement to my former publication “Holarctic Elements among the Ichneumoninae of Maine” (Jour. Wash. Acad. Science 43. May, 1953, p. 148-50). They are based mainly on material obtained by the Northern Insect Survey, which is a co-operative project of the Canada Department of Agriculture and the Defence Research Board, Canada Department of National Defence.

NEW GENERA OF NORTH AMERICAN MUSCOID DIPTERA

1943 ◽  
Vol 75 (9) ◽  
pp. 163-169 ◽  
Author(s):  
H. J. Reinhard
Keyword(s):  
North American ◽  
New Genera ◽  
Department Of Agriculture ◽  
Additional Material ◽  
Canadian Department

The following descriptions of five new genera and species of Tachinidae are based upon material received from several sources as indicated below. Most of the species have been standing in my collection for a number of years pending the accumulation of longer series. My thanks are due A. R. Brooks for the loan of some additional material recently discovered in the extensive tachinid collections in the Canadian Department of Agriculture. The type or paratype specimens, of the two species represented by this material, are returned for deposit in the Canadian Collection, as detailed under the descriptions.

DEVELOPMENT OF A NEW BREED OF PIGS: THE LACOMBE: I. FOUNDATION AND DEVELOPMENTAL PROCEDURES

1969 ◽  
Vol 49 (3) ◽  
pp. 237-246 ◽  
Author(s):  
H. T. Fredeen ◽  
J. G. Stothart
Keyword(s):  
Research Program ◽  
Research Station ◽  
Developmental Research ◽  
Department Of Agriculture ◽  
Selection Program ◽  
The Public ◽  
Canada Department ◽  
Foundation Stock

The Lacombe breed of pigs, released to the public in 1958, culminated a 12-year developmental research program conducted at the Canada Department of Agriculture Research Station, Lacombe, Alberta. This report describes and summarizes details of the foundation stock, mating plan and selection program used.

DEVELOPMENT OF THE ROMNELET SHEEP

1961 ◽  
Vol 41 (1) ◽  
pp. 102-108 ◽  
Author(s):  
H. F. Peters ◽  
S. B. Slen ◽  
H. J. Hargrave
Keyword(s):  
Inbreeding Coefficient ◽  
Department Of Agriculture ◽  
Generation Interval ◽  
Canada Department ◽  
Performance Traits ◽  
White Face ◽  
The Mean ◽  
Standard Deviations ◽  
Skin Wrinkles ◽  
Foundation Stock

In 1935 the Canada Department of Agriculture undertook the development of a new breed of sheep at the Experimental Farm, Manyberries, Alberta. The foundation stock consisted of 15 Romney Marsh rams and 520 Rambouillet ewes, with introductions of 1 Targhee ram in 1942 and 6 Romeldale rams in 1944. Two of the Romeldale rams were used again in 1945. The flock has been closed to outside introductions since 1945 and the breed which resulted has been named "Romnelet".Following the first cross, the F1 animals were inter-mated and no back-crosses were made. A genealogical study up to, and including, 1955 showed the average annual size of the breeding flock to be 10 rams and 338 ewes and the average generation interval 3.5 years. On the average, there were 13 rams and 301 ewes selected per generation. The mean inbreeding coefficient of the 1955 lambs was 8 per cent.Romnelets are polled, open-faced, free from skin wrinkles, with white face and legs and a fleece of [Formula: see text] or [Formula: see text] staple wool. Means and standard deviations of performance traits in the new breed under range conditions are reported.

Distributional Records of North American Corixidae (Hemiptera: Heteroptera)

1955 ◽  
Vol 87 (11) ◽  
pp. 474-481 ◽  
Author(s):  
I. Lansbury
Keyword(s):  
North American ◽  
Western Hemisphere ◽  
Large Collection ◽  
Department Of Agriculture ◽  
Canadian Department

During 1954, I had the opportunity of examining a large collection, circa 3,500 of unidentified Corixidae which had been accumulated in the Canadian Department of Agriculture over a period of years. These notes consist of a list of species identified, with observations where pertinent when these records are new state or country records compared with the full lists of localities given in H. B. Hungerford's ‘The Corixidae of the Western Hemisphere’ 1948, Univ. Kansas Sci. Bull. Vol. XXXII, pp. 1-827.

Some Synonymy and New Combinations in Chalcidoidea (Hymenoptera)

1951 ◽  
Vol 83 (7) ◽  
pp. 170-176 ◽  
Author(s):  
A. B. Gahan
Keyword(s):  
United States ◽  
North American ◽  
Great Part ◽  
The United States ◽  
National Museum ◽  
New Combinations ◽  
Department Of Agriculture ◽  
United States National Museum ◽  
Nearctic Region ◽  
The U.S

At the time of my retirement on December 31, 1950, a number of notes on synonymy and generic transfers had accumulated. Many of these are thought worthy of publication and this paper is made up of a number of them. Those included notes which deal with Nearctic forms will clarify the treatment of certlin genera and species in the catalog of North American Hymenoptera, now in process of publication by the U.S. Department of Agiculture, the Chalcidoidea section of which catalog has assembled and edited by O. Peck of the Canadian Department of Agriculture but which is based in great part upon the classification and arrangement of the collection in the United States National Museum. The catalog will probably appear in print before this paper does. Several notes dealing with forms not known to occur in the Nearctic region, hence not appearing in the catalog, are also included.

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