The digestibility of bur clover as affected by exposure to sunlight and rain
AuthorsH. R. Guilbert
S. W. Mead
Authors AffiliationsH. R. Guilbert was Assistant Animal Husbandman in the Experiment Station; S. W. Mead was Associate Animal Husbandman in the Experiment Station.
Hilgardia 6(1):1-12. DOI:10.3733/hilg.v06n01p001. May 1931.
Abstract does not appear. First page follows.
The principal forage plants of California foothill and valley ranges are annuals.3 They germinate with the coming of the fall rains and make, during the winter, an amount of growth that varies according to moisture and temperature conditions. From February to May is usually the period of greatest growth. When the rains cease and moisture is depleted, the forage matures and dries. Stock is then either maintained on the dry feed or moved to summer ranges in the high mountains. In the latter case, the stock is brought to the lower ranges in the early fall and subsists on the old dry feed until rains bring on new forage.
The changes in the plants from the early vegetative stage to the dried condition involve marked changes in chemical composition and nutritive value. After drying, the feed is subjected to the processes of weathering.
Studies by Woodman and others(1), (2), (3) on the nutritive value of pasture have shown that young pasture grass is in digestible composition a “watered concentrate” rather than a roughage. They found that 70 per cent of the organic matter was digestible and that the small amount of fiber which it contained was 80 per cent digestible. The immature grass contained approximately 20 per cent digestible protein with a nutritive ratio of about 1:3.
 Woodman H. E., Blunt D. L., Stewart J. Nutritive value of pasture. Jour. Agr. Sci. 1926. 16(2):205-274. DOI: 10.1017/S0021859600018244 [CrossRef]
 Woodman H. E., Blunt D. L., Stewart J. Nutritive value of pasture. Jour. Agr. Sci. 1927. 17(2):209-263. DOI: 10.1017/S0021859600018487 [CrossRef]
 Woodman H. E., Norman D. B., Bee J. W. Nutritive value of pasture. Jour. Agr. Sci. 1928. 18(2):266-294. DOI: 10.1017/S0021859600009102 [CrossRef]
 Mead S. W., Guilbert H. R. The digestibility of certain fruit by-products as determined for ruminants. Part I. Dried orange pulp and raisin pulp. California Agr. Exp. Sta. Bul. 1926. 409:1-11. http://archive.org/details/digestibilityofc409mead
 Armsby H. P. The nutrition of farm animals. 1922. N. Y: Macmillan Co. 741p.
 Henry and Morrison. Feeds and feedings. 1923. 18th ed. Madison Wisconsin: The Henry-Morrison Co. 700p. Unabridged.
Also in this issue:Lemons and lemon products: New trends in market development of fresh and processed uses of lemons face the industry
Virus diseases of orchids: Symptoms, spread, host range, distribution, and control practices determined by experimental transmissions
Chemical weed control: Soil sterilants and translocated herbicides have their advantages and problems according to their special uses
Microelements in citrus: Spectrograph reveals presence and amounts of nickel and other trace elements in orange seedlings
Asparagus plant breeding: A commercially desirable new strain can be developed only after a minimum of eight to ten years of testing
Tomato insect control program: All-season program outlined for northern California as protection against the most important tomato pests
Verticillium wilt and black root rot of strawberry: Progress toward control made by soil fumigation with CWP-55 in split treatments of a combined dosage of 30 gallons per acre
Soft brown scale on citrus: Abnormal increase of scale population in groves treated with parathion investigated in survey
Spray chemical concentrations: Recommendations for bulk, semi consent rate, concentrate methods of spray application on deciduous fruit trees
The effect of leaching on the nutritive value of forage plants