Effect of Photoperiod on Feed Intake and Animal Performance
Published:March 20, 2014
Summary
Introduction
Numerous studies across multiple locations support the concept that lactating cows exposed to 16 to 18 hours of light each day (i.e., long day photoperiod, or LDPP) have greater milk yield relative to cows on a typical light schedule of natural photoperiod plus some additional light to accommodate milking on a 12:12-hour schedule (reviewed in Dahl et al., 2000). The increase in ...
The author refers to milk yield - is this volume or ECM... What are the effects of photoperiod manipulation on milk composition. It is well documented that season ie long or short photoperiod is the major determinant of milk protein and fat %.