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Browsing Extension Service -- Pacific Northwest Extension Publishing by Subject "Livestock productivity"

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Browsing Extension Service -- Pacific Northwest Extension Publishing by Subject "Livestock productivity"

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  • Oregon State University. Extension Service; Washington State University. Extension; University of Idaho. Extension; Buyserie, A. C. (Annette C.); Dahl, Geoffrey Eliot; Gamroth, M. J. (Michael J.); Pacific Northwest Cooperative Extension ([Covallis, Or.] : Oregon State University Extension Service, 2001-09)
    Milk production can be increased by managing dairy cows’ exposure to light. Photo period is defined as the duration of light exposure within a 24-hour period. A long-day photo period (LDPP) means exposure to 16–18 hours ...

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