Description
Animal productivity is the ultimate performance indicator of any new grass cultivar. Direct assessment is complex and expensive. Recent research has identified a number of important sward factors that influence intake and production. The most important factor appears to be green leaf mass. The objective of this two year study was to investigate the effects on milk yield, composition and grass intake of grass cultivars with contrasting heading dates (HD) and grass ploidies (PL) when grazed at different stocking rates.
Citation
O'Donovan, M.; Hurley, G.; Delaby, L.; and Stakelum, G., "A Comparison of Perennial Ryegrass Cultivars Differing in Heading Date and Grass Ploidy for Grazing Dairy Cows at Two Different Stocking Rates" (2023). IGC Proceedings (1993-2023). 105.
https://uknowledge.uky.edu/igc/20/satellitesymposium4/105
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A Comparison of Perennial Ryegrass Cultivars Differing in Heading Date and Grass Ploidy for Grazing Dairy Cows at Two Different Stocking Rates
Animal productivity is the ultimate performance indicator of any new grass cultivar. Direct assessment is complex and expensive. Recent research has identified a number of important sward factors that influence intake and production. The most important factor appears to be green leaf mass. The objective of this two year study was to investigate the effects on milk yield, composition and grass intake of grass cultivars with contrasting heading dates (HD) and grass ploidies (PL) when grazed at different stocking rates.
