Offered Papers Theme A: Efficient Production from Grassland
Description
The Dietary Cation-Anion Difference [DCAD = (Na + K) - (Cl + S); Ender et al., 1971] is used in balancing rations for dry dairy cows. Low DCAD diets induce a mild, compensated metabolic acidosis that stimulates bone resorption, improves Ca homeostasis, and prevents milk fever. Dry cow rations contain a high proportion of forage and, therefore, forages fed two to four weeks prepartum should have a low or negative DCAD value. Our objectives were to evaluate the DCAD of five cool-season grass species grown in eastern Canada and to determine the effect of Cl fertilisation on the DCAD value of timothy (Phleum pratense L.).
Citation
Bélanger, Gilles; Pelletier, Sophie; Brassard, H.; Tremblay, Gaëtan F.; Seguin, Philippe; Drapeau, R.; Brégard, A.; Michaud, Réal; and Allard, Guy, "Species and Chlorine Fertilisation Affect Dietary Cation-Anion Difference of Cool-Season Grasses" (2023). IGC Proceedings (1993-2023). 233.
https://uknowledge.uky.edu/igc/20/themeA/233
Included in
Agricultural Science Commons, Agronomy and Crop Sciences Commons, Plant Biology Commons, Plant Pathology Commons, Soil Science Commons, Weed Science Commons
Species and Chlorine Fertilisation Affect Dietary Cation-Anion Difference of Cool-Season Grasses
The Dietary Cation-Anion Difference [DCAD = (Na + K) - (Cl + S); Ender et al., 1971] is used in balancing rations for dry dairy cows. Low DCAD diets induce a mild, compensated metabolic acidosis that stimulates bone resorption, improves Ca homeostasis, and prevents milk fever. Dry cow rations contain a high proportion of forage and, therefore, forages fed two to four weeks prepartum should have a low or negative DCAD value. Our objectives were to evaluate the DCAD of five cool-season grass species grown in eastern Canada and to determine the effect of Cl fertilisation on the DCAD value of timothy (Phleum pratense L.).
