Digestibility and voluntary intake of forages fed as hay or wilted silage to beef steers
TLDR
Thirty-six steers were used to study the nutritive value of alfalfa, timothy and a mixture of red clover-timothy-Kentucky bluegrass, and total digestible nutrient values were similar for all forages.Abstract:
Thirty-six steers (334 kg avg body wt.) were used to study the nutritive value of alfalfa (cv. Saranac), timothy (cv. Climax) and a mixture of red clover-timothy-Kentucky bluegrass. For 2 wk, the forages were fed ad libitum as either hay or silage. Dry matter (DM) intake was measured during the second week. Digestibility was determined during the fourth week by total collection with DM intake limited to 90% of that obtained previously. DM intake was highest for alfalfa and lowest for the grass mixture (P < 0.05) but was not affected by the method of storage. Total digestible nutrient values were similar for all forages. DM intake was highly correlated with lignocellulose content (r = −0.97, P < 0.01). Digestible protein intake was estimated by an equation previously obtained with sheep (r = 0.94, P < 0.01). Dry matter and energy digestibilities were similar for all treatments. Protein digestibility of alfalfa (67.4%) was higher than for timothy and the grass mixture while the opposite was observed for cru...read more
Citations
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Plant compositional constituents affecting between-plant and animal species prediction of forage intake.
TL;DR: The ratio in vitro digestibility of organic matter (IVDOM:NDF) should be valuable as a relatively inexpensive and rapid method to screen forages and cultivars.
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A comparison of the effect of forage type and level of feeding on the digestibility and gastrointestinal mean retention time of dry forages given to cattle, sheep, ponies and donkeys.
TL;DR: Differences between species in voluntary DM intake (VDMI) were greatest on the lucerne and least on barley straw, whilst apparent digestibility of the straw diet by the ponies was lowest and Gastrointestinal MRT was shorter in the equids than in the ruminants.
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The effect of a lactic acid bacterial inoculant with enzymes on the fermentation dynamics, intake and digestibility of Digitaria eriantha silage
TL;DR: The addition of the bacterial inoculant when ensiling D. eriantha resulted in better preservation, improved aerobic stability, as well as a lower numbers of enterobacteria, clostridial spores, yeast and mould compared to control silage.
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Value of processed saltbush and acacia shrubs as sheep fodders under the arid conditions of Egypt
TL;DR: The most nutritious diets were saltbush and acacia silage which provided sufficient digested nutrients to meet energy and protein requirements for maintenance of sheep and did not require supplementation with concentrates to provide a maintenance ration.
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The regulation and prediction of feed intake in ruminants in relation to feed characteristics
J.P. Dulphy,C. Demarquilly +1 more
TL;DR: In this paper, a review of the state of the art in the prediction of feed intake in ruminants is presented, where the authors consider three types of regulation mechanisms: physical, chemical and oropharyngeal regulation mechanisms.
References
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Principles and Procedures of Statistics.
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Development of a Comprehensive System of Feed Analyses and its Application to Forages
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The buffering constituents of herbage and of silage
M. J. Playne,P. McDonald +1 more
TL;DR: The buffering capacity values of several herbage species and of silage made from this herbage, and the contributions of plant constituents to this buffering, between pH 4 and 6 were determined, and found to vary with theHerbage species; values in the silages were normally two to three times greater than those in the plant materials.