Determination of the In Vitro Gas Production and Potential Feed Value of Olive, Mulberry and Sour Orange Tree Leaves

Abstract

This study was conducted to determine the potential nutritive value and in vitro gas production (IVGP) parameters of Olea europaea L. (Olive = OL), Morus alba L. (Mulberry = ML) and Citrus aurantium L. (Sour orange = SOL) tree leaves. Hohenheim gas test was used to determine the in vitro gas productions of the leaves. The gas production of samples over time was recorded for 3, 6, 9, 12, 24, 48, 72 and 96 h after incubation. Completely Randomized Design was used to compare gas production, and gas production kinetics of samples. The findings of the present study suggested that there were differences among the tree leaves in terms of crude protein, NDF, in vitro gas productions, organic matter digestibility (OMD), metabolisable energy (ME), net energy lactation (NEL) and relative feed values (RFV) (P<0.01). ML had the highest condensed tannin contents (P<0.05), in vitro gas production (IVGP), OMD and energy values (P<0.01). SOL had highest RFV values. OL showed the lowest IVGP when compared to SOL and ML. Low NDF and ADF contents of SOL would probably increase the voluntary intake, digestibility and relative feed values of these leaves by ruminants. In conclusion, it was determined that OL, ML and SOL used in the study have low in vitro gas production and can be utilized as alternative roughage feed in ruminants. However, it is recommended that the results obtained from this research should be tested in in vivo studies.

Influence of bamboo grass (Tiliacora triandra, Diels) pellet supplementation on in vitro fermentation and methane mitigation

“…Under this study, the R : C had a significant increase in gas volume when roughage level was decreased and concentrate level was increased from 100 to 30 and from 0 to 70%, respectively. Under this study, BP had no significant impacts on a , b , c and a + b values, while R : C did and similar results were also found by other researchers 24 . Plants and feeds containing PTNs, such as CT and SP have demonstrated a wide spectrum of antibacterial properties against rumen bacteria, protozoa, and fungi 23 …”

“…Under this study, BP had no significant impacts on a, b, c and a + b values, while R:C did and similar results were also found by other researchers. 24 Plants and feeds containing PTNs, such as CT and SP have demonstrated a wide spectrum of antibacterial properties against rumen bacteria, protozoa, and fungi. 23 The DM and NDF degradabilities were remarkably enhanced at both 12 and 24 h of fermentation duration.…”

In Vitro Ruminal Fermentation and Degradability of Rice Husk on Rice Bran Substitution

“…Similar findings were also reported by Olfaz et al, (2018) and Jayanegara et al, (2009). There were positive relationships between ether extract and crude protein with DOI: http://dx.doi.org/10.14203/ann.bogor.2020.v24.n1.50-58 potential gas production, gas production rate, and OMD.…”

Determining Potential Feed Value and Silage Quality of Guar Bean (Cyamopsis tetragonoloba) Silages

“…Consequently, some of the shrubs, thorny plants and tree leaves can be used as alternative forages, especially in the wintertime [ 1 , 2 , 3 ]. It is believed that guar bean (Cluster bean = Cyamopsis tetragonoloba ) will contribute to closing the forage gap [ 4 ]. Forage needs of ruminants are provided for by drying or ensiling hay in winter.…”

“…Some phenolic compounds are present in the guar bean seeds [ 8 ] and for this reason, it is recommended to use guar bean silage (GS) in ruminant nutrition. Fresh guar beans has shown very good nutritional composition (CP 3.54%, EE: 0.64%, NFE: 11.86%, NDF: 11.69% for dry matter 25.5%) [ 4 ]. It is reported that guar forage is unpalatable and not suitable for grazing but sometimes it can be used to reduce the risk of bloat in grazing ruminants [ 9 , 10 ].…”