scholarly journals A history of the Bacteriology Division of the Canada Department of Agriculture 1923-1955.

1968 ◽  
Author(s):  
A. Grant. Lochhead ◽  
HortScience ◽  
2018 ◽  
Vol 53 (11) ◽  
pp. 1560-1561 ◽  
Author(s):  
Lisa L. Baxter ◽  
Brian M. Schwartz

Bermudagrass (Cynodon spp.) is the foundation of the turfgrass industry in most tropical and warm-temperate regions. Development of bermudagrass as a turfgrass began in the early 1900s. Many of the cultivars commercially available today have been cooperatively released by the U.S. Department of Agriculture Agricultural Research Service (USDA-ARS) and the University of Georgia at the Coastal Plain Experiment Station in Tifton, GA.


1959 ◽  
Vol 39 (1) ◽  
pp. 121-127
Author(s):  
E. S. Merritt

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.


Author(s):  
V.R. Fowler ◽  
M. Curran ◽  
O. Davies ◽  
S. Edwards ◽  
M. Ellis ◽  
...  

The role of nutrition in determining the reproductive performance of sows is still controversial. Much of the dispute arises because in many published experiments there were very few sows in each treatment group. In addition, there have been substantial changes In the husbandry of sows over recent years, and these include the much earlier weaning of the litter at as little as three weeks of age, the breeding of the gilt at a younger age since she reaches 100 kg very much more quickly, and the development of facilities which allow each sow to be treated as an individual. A further change has been in the genotype of the breeding female which means that quite often she enters the reproductive phase of her life carrying very much less adipose tissue than hitherto. The recent development of equipment and techniques to monitor the backfat thickness of sows during life has introduced a new management tool, for which guidelines are readily given, but for which hard experimental evidence is often lacking. The purpose of the coordinated experiment reported here was to attempt to establish critical factors in the history of the sow which put her reproductive performance at particular risk and to evaluate widely recommended practices of Increasing the feed Intake at over the terminal phase of pregnancy, The work was jointly funded by the Department of Agriculture for Scotland and each of the centres.


2008 ◽  
Vol 3 (2) ◽  
pp. 203-225 ◽  
Author(s):  
David Moon

AbstractIn the late nineteenth and early twentieth centuries, wheat varieties from the Russian steppes were introduced on the Great Plains of the USA, a region with a similar environment. The introduction was partly a by-product of the migration of German farmers from the steppes to the Great Plains in the 1870s. The US Department of Agriculture, eager to promote American wheat production in a competitive world market for grain in which Russia was in the lead, sought out wheat varieties on the steppes that were suitable for the Great Plains. Russian wheat varieties became mainstays on the Great Plains for the next few decades, while Russian agriculture declined under Soviet power. On the basis of research on both sides of the Atlantic, this article sheds light on an important aspect of the global exchange of peoples and crops that has shaped the agricultural and economic history of societies around the world since the invention of agriculture.


1956 ◽  
Vol 88 (11) ◽  
pp. 647-652 ◽  
Author(s):  
Gerd H. Heinrich

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.


1969 ◽  
Vol 49 (3) ◽  
pp. 237-246 ◽  
Author(s):  
H. T. Fredeen ◽  
J. G. Stothart

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.


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