Publication Date
1993
Description
The voluntary intake and rumen degradation of Medlcago trumcatula cv. Paraggio barrel medic pods harvested after both good and poor growing seasons were measured with Merino wethers. Voluntary intake measurements on 18 sheep were made during the last 12 days of a 3. week period. The degradation characteristics of the whole pods, seeds and hulls were measured by incubating samples (in nylon bags) for 24, 48 and 72 h in the rumen of 4 sheep fitted with rumen fistula and given a maintenance ration. The voluntary dry matter (DM) and organic matter intakes were 1837 and 1734 g/sheep/day for the pods from the good growing season and 343 and 323 g/sheep/day for the pods from poor growing season respectively. The differences between these intakes were significant (P<0.01). In spite of the differences in voluntary intake, rumen DM degradation did not differ significantly between the two lots of whole mature pods or for any of the constituents, but within each lot there was a significant difference between the DM disappearance of whole pods and the constituents. The DM disappearance of all samples was increased up to 48 h incubation time but the major part of the degradation loss occurred in the first 24 h.
Citation
Valizadeh, R; Carter, E D.; and Yates, N G., "Voluntary Intake and Rumen Degradation by Sheep of Mature Pods of Medicago truncatula cv. Paraggio" (2024). IGC Proceedings (1993-2023). 22.
https://uknowledge.uky.edu/igc/1993/session14/22
Included in
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Voluntary Intake and Rumen Degradation by Sheep of Mature Pods of Medicago truncatula cv. Paraggio
The voluntary intake and rumen degradation of Medlcago trumcatula cv. Paraggio barrel medic pods harvested after both good and poor growing seasons were measured with Merino wethers. Voluntary intake measurements on 18 sheep were made during the last 12 days of a 3. week period. The degradation characteristics of the whole pods, seeds and hulls were measured by incubating samples (in nylon bags) for 24, 48 and 72 h in the rumen of 4 sheep fitted with rumen fistula and given a maintenance ration. The voluntary dry matter (DM) and organic matter intakes were 1837 and 1734 g/sheep/day for the pods from the good growing season and 343 and 323 g/sheep/day for the pods from poor growing season respectively. The differences between these intakes were significant (P<0.01). In spite of the differences in voluntary intake, rumen DM degradation did not differ significantly between the two lots of whole mature pods or for any of the constituents, but within each lot there was a significant difference between the DM disappearance of whole pods and the constituents. The DM disappearance of all samples was increased up to 48 h incubation time but the major part of the degradation loss occurred in the first 24 h.
