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Articles 1 - 6 of 6
Full-Text Articles in Agriculture
The Influence Of Number Of Daily Milkings On The Production Of Dairy Cows, R. F. Morgan, H. P. Davis
The Influence Of Number Of Daily Milkings On The Production Of Dairy Cows, R. F. Morgan, H. P. Davis
Historical Research Bulletins of the Nebraska Agricultural Experiment Station
High-producing Holstein, Jersey, Ayrshire, and Guernsey cows of various ages milked three times daily produced from 39.69 to 52.26 per cent more fat and from 44.98 to 65.18 per cent more milk than cows milked twice daily. When high-producing cows of all breeds milked four times daily were compared with cows milked twice daily, the fat production for the several age classes varied from 110.19 to 127.53 per cent and the milk production from 149.08 to 160.31 per cent greater for those milked four times. Milking high-producing cows four times as compared with three times daily showed an increased fat …
The Effect Of Maturity And The Ethylene Chlorhydrin Seed Treatment On The Dormancy Of Triumph Potatoes, H. O. Werner
The Effect Of Maturity And The Ethylene Chlorhydrin Seed Treatment On The Dormancy Of Triumph Potatoes, H. O. Werner
Historical Research Bulletins of the Nebraska Agricultural Experiment Station
Western Nebraska dry-land Triumph potatoes (Solanum tuberosum L.) vary in maturity at the time of harvest, from some that are very immature to others with vines which are entirely ripe. Variations in maturity may be due to such factors as early frost, drouth, destruction of vines by hail or early blight, time of planting, and strain type (whether early or late maturing). The question of seed maturity and its influence upon duration of the dormant period is of considerable commercial importance, since these potatoes are annually being planted in south Texas as early as December 26 and in southern …
Studies Of Rickets In Swine, William J. Loeffel, Ray R. Thalman, F. C. Olson, F. A. Olson
Studies Of Rickets In Swine, William J. Loeffel, Ray R. Thalman, F. C. Olson, F. A. Olson
Historical Research Bulletins of the Nebraska Agricultural Experiment Station
During the years 1925 to 1929 inclusive, the Nebraska Agricultural Experiment Station carried on a series of four experiments to study the importance of the antirachitic factors in the nutrition of swine. Vitamin D as obtained from cod-liver oil and the radiant-energy factor of sunlight were the sources of the antirachitic factors that received primary consideration. Emphasis was placed upon the study of the symptoms and lesions produced in pigs fed a rickets-producing ration.
Utilization Of Proteins By The Growing Chick, F. E. Mussehl, C. W. Ackerson
Utilization Of Proteins By The Growing Chick, F. E. Mussehl, C. W. Ackerson
Historical Research Bulletins of the Nebraska Agricultural Experiment Station
1. There is a marked difference in the nutritive value of the various protein-contributing concentrates when used to supplement a corn-wheat basal ration which has been made complete for known vitamin and mineral essentials. 2. There is a great difference in the biological value even of animal protein concentrates. 3. Soybean meal produced a better growth rate than any of the other plant concentrates used. Cottonseed meal proved to have a greater growth-promoting value than did linseed oil meal. 4. The supplementing values of protein concentrates, one to another, is not quite as evident as one would expect if the …
Infection Experiments With Spindle Tuber And Unmottled Curly Dwarf Of The Potato, R. W. Goss
Infection Experiments With Spindle Tuber And Unmottled Curly Dwarf Of The Potato, R. W. Goss
Historical Research Bulletins of the Nebraska Agricultural Experiment Station
It is probable that more than one insect species are capable of spreading some of the potato virus diseases. This conclusion was also indicated by repeated observations in the dry-land section of western Nebraska. While aphids are abundant and are probably the chief vectors of potato virus diseases in the more humid sections of the country, they are usually scarce in the western upland plains area and are not present in large enough numbers to account for the rapid spread of spindle tuber and unmottled curly dwarf which sometimes occurs. It was therefore considered advisable to determine the common potato …
The Vitamin A Content Of The Milk Of Holstein, Ayrshire, Jersey, And Guernsey Cows, H. P. Davis, I. L. Hathaway
The Vitamin A Content Of The Milk Of Holstein, Ayrshire, Jersey, And Guernsey Cows, H. P. Davis, I. L. Hathaway
Historical Research Bulletins of the Nebraska Agricultural Experiment Station
A comparative study of the vitamin A content of milk produced by Holstein, Ayrshire, Jersey, and Guernsey cows was made by comparing the growth produced by 560 rats receiving milk from these breeds as their only source of vitamin A. The results showed some slight irregular differences in the gains produced by the milk from the different breeds. When these differences were considered in view of the individual variation of the experimental animals, they appeared negligible. This conclusion was substantiated by a statistical examination of the data. From the results of this study in which the experiments were duplicated, it …