High Moisture Corn Supplementation of Different Dry Matter Content to Cows Grazing Temperate Pasture
Publication Date
1997
Description
The objective of this study was to evaluate grazing dairy cows performance supplemented with high moisture corn of different dry matter content. Cows grazed fresh forage oat day and night and received 5 kg DM high moisture corn daily. Treatments 1 and 2 were high moisture corn of 30% and 18% moisture content respectively. Twenty Holstein cows were used for milk production and composition studies and six rumen fistulated cows were used for rumen digestion studies. Milk production and composition and body weight gain were not affected by the dry matter content of the supplemented high moisture corn. Related to rumen digestion, there were no differences in rumen fluid pH, ammonia and total volatile fatty acids concentration. Acetic, propionic and butiric acids concentration were also similar in both treatments but the acetic:propionic ratio was lower in rumen fluid of cows supplemented with high moisture corn with 30% water. Corn dry matter soluble fraction and potential digestion at ruminal level were similar for both types of high moisture corn but rate of digestion was higher in cows fed high moisture corn with the higher moisture content.
Citation
Rearte, D H.; Alvarez, H; and Santini, F, "High Moisture Corn Supplementation of Different Dry Matter Content to Cows Grazing Temperate Pasture" (2024). IGC Proceedings (1993-2023). 42.
https://uknowledge.uky.edu/igc/1997/session29/42
Included in
Agricultural Science Commons, Agronomy and Crop Sciences Commons, Plant Biology Commons, Plant Pathology Commons, Soil Science Commons, Weed Science Commons
High Moisture Corn Supplementation of Different Dry Matter Content to Cows Grazing Temperate Pasture
The objective of this study was to evaluate grazing dairy cows performance supplemented with high moisture corn of different dry matter content. Cows grazed fresh forage oat day and night and received 5 kg DM high moisture corn daily. Treatments 1 and 2 were high moisture corn of 30% and 18% moisture content respectively. Twenty Holstein cows were used for milk production and composition studies and six rumen fistulated cows were used for rumen digestion studies. Milk production and composition and body weight gain were not affected by the dry matter content of the supplemented high moisture corn. Related to rumen digestion, there were no differences in rumen fluid pH, ammonia and total volatile fatty acids concentration. Acetic, propionic and butiric acids concentration were also similar in both treatments but the acetic:propionic ratio was lower in rumen fluid of cows supplemented with high moisture corn with 30% water. Corn dry matter soluble fraction and potential digestion at ruminal level were similar for both types of high moisture corn but rate of digestion was higher in cows fed high moisture corn with the higher moisture content.
