scholarly journals [Canada, Department of Agriculture] List of Canadian Patents, From the Beginning of the Patent Office, June, 1824, to the 31st of August, 1872. Ottawa: Roger & Co., 1882. Fascimile reproduction by Gordon Publications and Reproductions, 929 Alpine Avenue, Ottawa, K2B 5R9, 1979. Pp. 222. $7.50

1981 ◽  
Vol 9 (3) ◽  
pp. 122
Author(s):  
Norman R. Ball
Keyword(s):  
Patent Office ◽  
Department Of Agriculture ◽  
Canada Department

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.

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.

The Canadian Northern Insect Survey, 1947–57

Polar Record ◽  
1959 ◽  
Vol 9 (61) ◽  
pp. 299-307 ◽  
Author(s):  
T. N. Freeman
Keyword(s):  
Research Programme ◽  
Department Of Agriculture ◽  
Joint Project ◽  
Northern Canada ◽  
Scientific Investigations ◽  
Canada Department ◽  
Defence Research ◽  
Insect Survey ◽  
Department Of National Defence ◽  
Entomological Research

The study of the insects of northern Canada has in the past depended mainly on a very small number of collections obtained by the early explorers, by a few individuals concerned with mapping and other scientific investigations, and by missionaries. The work of Kirby (1837), the reports of the Canadian Arctic Expedition (Hewitt, 1922) and the Fifth Thule Expedition (Henriksen, 1937), and a few short papers represent the main contributions of many years.Organized entomological research in northern Canada began in 1947 as a joint project of the Defence Research Board of the Canada Department of National Defence, and the Divisions of Entomology, Botany and Plant Pathology of the Canada Department of Agriculture. The research programme was divided into three major phases:

AGATHIS BINOMINATA (HYMENOPTERA: BRACONIDAE) PARASITIZING RHYACIONIA BUOLIANA (LEPIDOPTERA: OLETHREUTIDAE) IN CENTRAL ONTARIO

1968 ◽  
Vol 100 (8) ◽  
pp. 893-893
Author(s):  
Paul D. Syme
Keyword(s):  
Red Pine ◽  
Severe Winter ◽  
Pine Plantation ◽  
Department Of Agriculture ◽  
Southern Ontario ◽  
Canada Department ◽  
Internal Parasite ◽  
Coleophora Laricella ◽  
Rhyacionia Frustrana ◽  
Made In

Dissections of larvae from a routine collection of European pine shoot moth (Rhyacionia buoliana (Schiffermüller)) made on 12 October 1965 in a small red pine plantation in Con. VII, Mills Twp., Manitoulin Island, Ont., revealed the presence of larvae of an unrecognized parasite in approximately 44% of the 103 living shoot moth larvae obtained. This compares favourably with rates of approximately 40% found by the author for Orgilus obscurator Nees, the most effective internal parasite of shoot moth in southern Ontario. No adults of the unrecognized parasite were obtained at that time, and because of severe winter kill of the shoot moth, none were obtained in a sample made in the following spring from the same plantation. However, shoot moth larvae obtained in a sample taken on 4 October 1966 yielded similar larvae on dissection, and rearings produced adult parasites which were identified by Dr. W. R. M. Mason, Entomology Research Institute, Canada Department of Agriculture, Ottawa, Ont., as Agathis binominata Muesebeck. According to Muesebeck et al. (1951), Krombein et al. (1967), and Yates (1967), the following species are hosts of this parasite: Coleophora laricella (Hübner), Epiblema desertana (Zeller) , Epinotia nanana (Treitschke) , Petrova comstockiana (Fernald), Phalonia rutilana (Hübner) , Pulicalvaria coniferella (Kearfott) , P. piceaella (Kearfott) , and Rhyacionia frustrana (Comstock). Its association with Rhyacionia buoliana apparently has not been recorded previously.

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