This study determined nitrogen degradability and digestibility of rumen undegradable nitrogen using mobile nylon bag (MNB) and pepsin/pancreatin in vitro technique (IV) of 40 browse species. Thirty Ethiopian highland sheep fitted with rumen cannulae were used in nitrogen (N) degradability studies...
Kaitho, R.J.
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Umunna, N.N.
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Nsahlai, I.V.
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Tamminga, S.
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Bruchem, J. van
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[Nitrogen in browse species: Ruminal degradability and post-ruminal digestibility measured by mobile nylon bag and in vitro techniques]
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Nitrogen in browse species: Ruminal degradability and post-ruminal digestibility measured by mobile nylon bag and in vitro techniques
This study investigated two approaches to in vitro analysis of gas production data, being a three phase model with long ([greater-than-or-equal]72 h) incubation times, to obtain kinetics and asymptotic values of gas production, and combination of gas volume measurements with residue determinat...
Blümmel, Michael
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Cone, J.W.
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Gelder, A.H. van
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Nshalai, I.
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Umunna, N.N.
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Makkar, H.P.S.
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Becker, K.
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[Prediction of forage intake using in vitro gas production methods: Comparison of multiphase fermentation kinetics measured in an automated gas test, and combined gas volume and substrate degradability measurements in a manual syringe system]
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Prediction of forage intake using in vitro gas production methods: Comparison of multiphase fermentation kinetics measured in an automated gas test, and combined gas volume and substrate degradability measurements in a manual syringe system
The study aimed at examining the effects of replacing urea with protein nitrogen (N), source of protein and the quantity of rumen degradable N (RDN) in the diets of steers on rumen fermentation, outflow rate and intake. In experiment one, six ruminally cannulated Friesian steers were used in a re...
Nsahlai, I.V.
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Bryant, M.J.
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Umunna, N.N.
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[Utilization of barley straw by steers: Effects of replacing urea with protein, source of protein and quantity of rumen degradable nitrogen on straw degradation, liquid and particle passage rates and intake]
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Utilization of barley straw by steers: Effects of replacing urea with protein, source of protein and quantity of rumen degradable nitrogen on straw degradation, liquid and particle passage rates and intake
The aim of this work was to assess whether degradability, gas production or chemical constituents could predict the preference of browses. Forty tropical browse species leaves with a crude protein (CP) content ranging from 79 to 307 g kg-1 DM were used for this study. The neutral detergent fibre ...
Kaitho, R.J.
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Nsahlai, I.V.
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Williams, B.A.
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Umunna, N.N.
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Tamminga, S.
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Bruchem, J. van
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[Relationships between preference, rumen degradability, gas production and chemical composition of browses]
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Relationships between preference, rumen degradability, gas production and chemical composition of browses
This study characterized the degradability of cowpea (Vigna unguiculata) and Dolichos lablab (Lablab purpureus) hays (trial 1) and the effect of these legumes on rumen ammonia concentration (RAC), particulate passage rate (K1) and intake (trial 2) and the degradability of teff (Eragrostis tef) st...
Ebro, A.
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Umunna, N.N.
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Nsahlai, I.V.
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Osuji, P.O.
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Yami, A.
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[The effect of supplementing teff (Eragrostis tef) straw with graded levels of cowpea (Vigna unguiculata) and lablab (Lablab purpureus) hays on degradation, rumen particulate passage and intake by crossbred (Friesian X Boran (Zebu)) calves]
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The effect of supplementing teff (Eragrostis tef) straw with graded levels of cowpea (Vigna unguiculata) and lablab (Lablab purpureus) hays on degradation, rumen particulate passage and intake by crossbred (Friesian X Boran (Zebu)) calves
This study was aimed at evaluating (1) the dry matter (DM) and nitrogen (N) degradabilities (by sheep) of Sesbania sesban leaves, Acacia albida (Faidhabia albida), A. siberiana and a. tortilis fruits and (2) the effect of feeding a mixture of oilseed cake and tanniferous browses on the degradabil...
Nsahlai, I.V.
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Osuji, P.O.
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Umunna, N.N.
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[The degradability by sheep of fruits of acacias and leaves of Sesbania sesban and the effects of supplementation with mixtures of browses and oilseed cake on the utilization of teff (Eragrostis tef) straw]
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The degradability by sheep of fruits of acacias and leaves of Sesbania sesban and the effects of supplementation with mixtures of browses and oilseed cake on the utilization of teff (Eragrostis tef) straw
Five mathematical models were evaluated for their ability to describe ruminal degradability profiles of protein sources composed of herbaceous legumes, browse species and oilseed cakes. Degradability constants of dry matter, organic matter, nitrogen and neutral detergent fiber of the feeds were t...
Bediye, S.
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Umunna, N.N.
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Nsahlai, I.V.
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Sileshi, Z.
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Yami, A.
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[Evaluation of various mathematical models in describing ruminal degradability of protein sources]
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Evaluation of various mathematical models in describing ruminal degradability of protein sources