Author
D.D. Gisi
Bio: D.D. Gisi is an academic researcher from University of California, Davis. The author has contributed to research in topics: Total mixed ration. The author has an hindex of 1, co-authored 1 publications receiving 70 citations.
Topics: Total mixed ration
Papers
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TL;DR: In this article, an in vitro gas production technique was used to measure total gas and methane (CH4) production from commercial total mixed rations (TMR) for lactating dairy cows.
73 citations
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TL;DR: In this paper, a review of the studies conducted on the removal and recovery of phosphorus and nitrogen from wastewaters through struvite crystallization is presented, which deals with the principles and concept of struvites nucleation, crystal growth and the factors that affect on the struvitsite quality.
424 citations
TL;DR: The analyses revealed that the pattern of pH change and N leaching losses for MAP-treated soil were remarkably different from those for fused super phosphate (FSP)-urea-treated soils, and phosphate leaching was very slow in both MAP- and FSP-treated groups.
172 citations
TL;DR: The objective of this study was to determine effect of pasture type on methane and carbon dioxide production by heifers grazing alfalfa or grass pastures at three sites across western Canada.
Abstract: The objective of this study was to determine effect of pasture type on methane and carbon dioxide production by heifers grazing alfalfa or grass pastures at three sites across western Canada. All p...
109 citations
TL;DR: In vitro rumen gas techniques have gained popularity as a research tool, versus other in vitro techniques, due to their ability to provide kinetic data that describes extent and rate of digestion from single sample incubation.
99 citations
TL;DR: It was concluded that A. mangium, B. petersianum, J. curcas and P. guajava have potential to be used as a feed supplement to reduce CH(4) production in ruminants.
Abstract: BACKGROUND: Methane (CH4) produced during ruminal fermentation represents a loss of 10–11% of gross energy intake The use of browse species containing tannin as feed supplement for ruminants tends to increase in order to reduce CH4 production The present study was conducted to evaluate some tropical plants containing tannin as feed supplement (200 g kg−1) on in vitro CH4 production and fermentation parameters
RESULTS: The crude protein (CP) content ranged from 87 to 390 g kg−1 dry matter (DM) and was highest in Sesbania grandiflora (L) Poiret The neutral detergent fibre (NDF) concentration was highest in Pennisetum purpureum Schumach (725 g kg−1 DM) and lowest in S grandiflora (330 g kg−1 DM) The ranking order of plants based on their total tannin content was Acacia mangium Willd > Biophytum petersianum Klotzch > Jatropa curcas Linnaeus > Psidium guajava Linnaeus > Phaleria papuana > Persea americana Mill > S grandiflora Methane gas production after 48 h of incubation was significantly (P < 005) lower with inclusion of A mangium (PP + AM), B petersianum (PP + BP), J curcas (PP + JC) or P guajava (PP + PG) as compared to control feed (PP) There was negative correlation between total tannin content and CH4 production at 48 h of incubation (r = − 076) Concentration NH3-N was significantly (P < 001) higher with inclusion of S glandiflora Inclusion of P guajava significantly (P < 005) suppressed protozoa population by 497% relative to control feed (PP)
CONCLUSION: It was concluded that A mangium, B petersianum, J curcas and P guajava have potential to be used as a feed supplement to reduce CH4 production in ruminants Copyright © 2009 Society of Chemical Industry
91 citations