Swine production: Main factors of improvement are prolificacy, milk production, type
Author AffiliationsHubert Heitman, Jr., is Assistant Professor of Animal Husbandry, University of California College of Agriculture, Davis.
Hilgardia 5(10):15-15. DOI:10.3733/ca.v005n10p15. October 1951.
Swine production can be improved by using purebreds with records consistent in prolificacy, milk production, and type.
Heitman H. 1951. Swine production: Main factors of improvement are prolificacy, milk production, type. Hilgardia 5(10):15-15. DOI:10.3733/ca.v005n10p15
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Blood-spotting in eggs: Controlled by breeding in a ten-generation selection experiment with Single Comb White Leghorns
Lettuce growth rates: Investigations find heat unit accumulations not a reliable means of predicting harvest time
Invisible injury of citrus: Insecticide tests indicate that oil sprays lower soluble solids in juice and reduce dry matter in leaves
Lithium toxicity in citrus: Recognized on leaves in a grove in Santa Barbara County on the basis of artificially produced symptoms
Citricola scale control: Tests find parathion a control agent of outstanding promise in commercial navel and Valencia orange groves
Resistance to fumigation: Studies of outbreak in southern California reveal resistance to hydrogen cyanide fumigation persists
Westside dust test plots: Studies designed to develop plants and grazing systems for effective dust control under way in three counties
Research at field stations: Local agricultural problems are studied and fundamental research applied in distributed outdoor laboratories
Lemon fruit quality: Rootstocks affect juice content, soluble solids, acidity of Eurekas
Citrus-root nematodes on olive: Pest pathologically and morphologically similar to that on orange roots infests and reproduces on olive roots
Nontoxic ferns: Feeding tests with cattle find gold fern, bird's foot fern nontoxic
Growth and yield of certain Gramineae as influenced by reduction of photosynthetic tissue