TY - JOUR
T1 - The Effect of Soaking on Carbohydrate Removal and Dry Matter Loss in Orchardgrass and Alfalfa Hays
AU - Martinson, Krishona
AU - Jung, Hans
AU - Hathaway, Marcia
AU - Sheaffer, Craig
PY - 2012/6
Y1 - 2012/6
N2 - The objective of this research was to determine the impact of water temperature and soaking length on removal of nonstructural carbohydrate (NSC) fractions and dry matter (DM) from legume and cool-season grass hays. The experimental design was a randomized complete block with six replications. Hay types included bud and flowering alfalfa (. Medicago sativa L.) and vegetative and flowering orchardgrass (. Dactylis glomerata L.). Flakes were submerged for 15, 30, and 60 minutes in 25 L of cold (22°C) water, warm (39°C) water, and 12 hours in cold water, respectively. Water temperature at each soaking duration did not affect residual NSC fractions in alfalfa hays. Flowering and vegetative orchardgrass hays soaked for 30 and 60 minutes, respectively, in warm water had greater (. P < .001) amounts of NSC fraction removal compared with soaking in cold water. Soaking bud and flowering alfalfa and vegetative orchardgrass hays for ≥15 minutes removed more NSC fractions compared with the control (. P ≤ .005); however, soaking for 15-60 minutes resulted in similar NSC fraction removal. Conversely, in flowering orchardgrass hay, longer soaking times resulted in greater (. P < .001) NSC fraction removal. Fructan removal in orchardgrass hay was greatest (. P < .001) after soaking for 12 hours. DM losses were similar among hays after soaking for 15-60 minutes, but were greatest after soaking for 12 hours (. P < .001). Soaking grass hay for 15-30 minutes is recommended to remove sufficient NSC fractions while minimizing DM losses.
AB - The objective of this research was to determine the impact of water temperature and soaking length on removal of nonstructural carbohydrate (NSC) fractions and dry matter (DM) from legume and cool-season grass hays. The experimental design was a randomized complete block with six replications. Hay types included bud and flowering alfalfa (. Medicago sativa L.) and vegetative and flowering orchardgrass (. Dactylis glomerata L.). Flakes were submerged for 15, 30, and 60 minutes in 25 L of cold (22°C) water, warm (39°C) water, and 12 hours in cold water, respectively. Water temperature at each soaking duration did not affect residual NSC fractions in alfalfa hays. Flowering and vegetative orchardgrass hays soaked for 30 and 60 minutes, respectively, in warm water had greater (. P < .001) amounts of NSC fraction removal compared with soaking in cold water. Soaking bud and flowering alfalfa and vegetative orchardgrass hays for ≥15 minutes removed more NSC fractions compared with the control (. P ≤ .005); however, soaking for 15-60 minutes resulted in similar NSC fraction removal. Conversely, in flowering orchardgrass hay, longer soaking times resulted in greater (. P < .001) NSC fraction removal. Fructan removal in orchardgrass hay was greatest (. P < .001) after soaking for 12 hours. DM losses were similar among hays after soaking for 15-60 minutes, but were greatest after soaking for 12 hours (. P < .001). Soaking grass hay for 15-30 minutes is recommended to remove sufficient NSC fractions while minimizing DM losses.
KW - Alfalfa
KW - Dry matter loss
KW - Hay soaking
KW - Nonstructural carbohydrate fractions
KW - Orchardgrass
UR - https://www.scopus.com/pages/publications/84861578638
UR - https://www.scopus.com/pages/publications/84861578638#tab=citedBy
U2 - 10.1016/j.jevs.2011.11.009
DO - 10.1016/j.jevs.2011.11.009
M3 - Article
AN - SCOPUS:84861578638
SN - 0737-0806
VL - 32
SP - 332
EP - 338
JO - Journal of Equine Veterinary Science
JF - Journal of Equine Veterinary Science
IS - 6
ER -