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Variation between individual cows in in situ rumen degradation characteristics of maize and grass silages [PDF]
Njas - Wageningen Journal of Life Sciences, 2016 Different numbers of animals have been used in different studies to cover the variation between individual animals in in situ rumen degradation characteristics of maize and grass silages.
J W Cone, G Van Duinkerken, M C Blok
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On the two-compartment model for estimating the rate and extent of feed degradation in the rumen
Journal of Theoretical Biology, 1990An analysis of the compartmental scheme used to determine the rate and extent of ruminal degradation of feeds is presented. Attention is given to the kinetic representation of the degradation of the potentially degradable fraction. Changing the kinetic order of the rate, and introducing indigestible substrate inhibition and microbial activity into its ...
J, France +6 more
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Studies on degradation and outflow rate of protein supplements in the rumen of sheep and cattle
Livestock Production Science, 1983Abstract The rates of disappearance (p) of protein from fish-meal, meat-and-bone meal, soya-bean meal, cottonseed meal, linseed-meal and groundnut-meal were described when nylon bags were incubated in the rumens of sheep and cattle given either barley or dried grass.
E.R. Ørskov +2 more
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Acta Agriculturae Scandinavica, Section A - Animal Science, 1994
Abstract The relation between effective degradation (ED) and ruminal digestibility of NDF was tested with 6 cows in two 3 × 3 latin square experiments, one with three different roughages fed alone and one with the same roughages fed together with concentrate.
Stensig, Torkil +2 more
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Abstract The relation between effective degradation (ED) and ruminal digestibility of NDF was tested with 6 cows in two 3 × 3 latin square experiments, one with three different roughages fed alone and one with the same roughages fed together with concentrate.
Stensig, Torkil +2 more
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Canadian Journal of Animal Science, 1991
The effect of duration of regrowth and wilting on silage crude protein fractions and rumen degradability of the crude protein were studied. The wilted silages had undergone more extensive proteolysis resulting in reduced hot water insoluble nitrogen. A large proportion of the silage crude protein was rumen degradable.
N. F. Makoni +2 more
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The effect of duration of regrowth and wilting on silage crude protein fractions and rumen degradability of the crude protein were studied. The wilted silages had undergone more extensive proteolysis resulting in reduced hot water insoluble nitrogen. A large proportion of the silage crude protein was rumen degradable.
N. F. Makoni +2 more
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Proceedings of the British Society of Animal Science, 2000
Grass forms the basal forage for the majority of ruminant livestock in Ireland and the UK. Level of nitrogen (N) and harvest date are the two major factors affecting the yield of herbage. In a concurrent study, Keady et al. (1999) concluded that herbage dry matter (DM) yield of the primary growth of a perennial ryegrass sward is increased by 7.9 kg DM ...
T.W.J. Keady +2 more
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Grass forms the basal forage for the majority of ruminant livestock in Ireland and the UK. Level of nitrogen (N) and harvest date are the two major factors affecting the yield of herbage. In a concurrent study, Keady et al. (1999) concluded that herbage dry matter (DM) yield of the primary growth of a perennial ryegrass sward is increased by 7.9 kg DM ...
T.W.J. Keady +2 more
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Canadian Journal of Animal Science, 1999
Two experiments were conducted to examine the fate of alfalfa saponins in the digestive tract of sheep. In the first experiment 14.4 or 28.8 g saponins were administered intraruminally daily, which provided 62 and 78% of the total saponin entering the rumen.
G. W. Mathison +4 more
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Two experiments were conducted to examine the fate of alfalfa saponins in the digestive tract of sheep. In the first experiment 14.4 or 28.8 g saponins were administered intraruminally daily, which provided 62 and 78% of the total saponin entering the rumen.
G. W. Mathison +4 more
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Journal of the Science of Food and Agriculture, 1996
Three ruminally cannulated dry cows were used in a Latin square design to investigate the relationship between microbial fibrolytic enzyme activities and in sacco cell wall degradation of two gramineous hays, in which cell wall content ranged from 510 g kg -1 DM for the regrowth to 687 g kg -1 DM for the late harvested hay.
Noziere, Pierre +3 more
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Three ruminally cannulated dry cows were used in a Latin square design to investigate the relationship between microbial fibrolytic enzyme activities and in sacco cell wall degradation of two gramineous hays, in which cell wall content ranged from 510 g kg -1 DM for the regrowth to 687 g kg -1 DM for the late harvested hay.
Noziere, Pierre +3 more
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Animal Feed Science and Technology, 1998
Abstract Eleven sun-cured hays with a crude protein and neutral-detergent fibre contents ranging from 57 to 207 g kg −1 and 428 to 744 g kg −1 dry-matter (DM) respectively, were used to study the suitability of different in vitro and in situ methods to estimate the extent and rate of degradation in the rumen.
S López +3 more
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Abstract Eleven sun-cured hays with a crude protein and neutral-detergent fibre contents ranging from 57 to 207 g kg −1 and 428 to 744 g kg −1 dry-matter (DM) respectively, were used to study the suitability of different in vitro and in situ methods to estimate the extent and rate of degradation in the rumen.
S López +3 more
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Livestock Production Science, 1999
Abstract The average rumen rate of passage of dietary NDF ( k NDF ) of mixed forage diets for cows was estimated indirectly as the value which, together with the values of kinetic degradation measured for each ingredient under standardised conditions, allowed the calculation of the NDF effective degradability equal to the NDF digestibility.
SPANGHERO, Mauro +3 more
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Abstract The average rumen rate of passage of dietary NDF ( k NDF ) of mixed forage diets for cows was estimated indirectly as the value which, together with the values of kinetic degradation measured for each ingredient under standardised conditions, allowed the calculation of the NDF effective degradability equal to the NDF digestibility.
SPANGHERO, Mauro +3 more
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