Manure management— costs and product forms
AuthorsJ. Van Dam
C. A. Perry
Authors AffiliationsJ. Van Dam is farm advisors, Agricidtural Extension Service, Los Angeles County; C. A. Perry is farm advisors, Agricidtural Extension Service, Los Angeles County.
Hilgardia 22(12):12-13. DOI:10.3733/ca.v022n12p12. December 1968.
An Estimated 30,700 head of beef were confined in fcedlots on January 1, 1967 in Los Angclcs County. Another 85,000 dairy animals were estimated to be within the confines of its milkshed. Together with the more than three million pen-caged hens, they produce a lot of animal waste. These spccialized, factory-farmed animals create special manure-handling problcms. A feedlot operation of 10,000 head has a sewagedisposal problem equivalent to that of a city with more than 150,000 people. The animal by-product smells and attracts flies which use the waste as a breeding medium. Sanitation regulations and ordinances are imposed as livestock opcratioris and urbanization seek to coexit.
Also in this issue:Solid/spaced a new carloading pattern for tight-fill packed fruit
Two new wheat varieties from Mexico …siete cerros 66-INIA 66
Performance indexing for beef cattle
Direct seeding of asparagus
Evaluation of soil amendments in Imperial Valley
Briggs and numar— two new barley varieties for California
A new technique for determining composition of oilseeds before planting
The development of an insect virus within cells of its host