An evaluation of Panicum maximum cv. Gatton: 2. The influence of stage of maturity on diet selection, intake and rumen fermentation in sheep

Relling, E.A.; Niekerk, W.A. van; Coertze, R.J.; Rethman, N.F.G.

doi:10.4314/sajas.v31i2.3833

Cited by 17 publications

(17 citation statements)

References 29 publications

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“…The NH 3 -N concentration recorded for boot stage silage does not support maximal fermentation rate (Ørskov, 1982). In P. maximum silage, the observed higher N concentration recorded at full bloom stage and the corresponding higher rumen NH 3 -N concentration of sheep on this diet confirmed earlier results (Meissner et al, 1993;Relling et al, 2001) that showed a positive correlation between N intake and rumen NH 3 -N concentration. In D. eriantha silage, however, harvesting at full bloom stage resulted in higher rumen acetic, propionic, butyric and total volatile fatty acid concentrations than silages made at the boot stage.…”

Section: Resultssupporting

confidence: 90%

“…This is in accordance with Van Niekerk et al (2008). Except for D. eriantha at boot stage, the values recorded for total VFA concentration are within the range reported for mature P. maximum pasture (Relling et al, 2001). Growth stage had no effect on the acetic acid to propionic acid ratio.…”

Section: Resultssupporting

confidence: 89%

“…In contrast, Van Niekerk et al (2008) reported no difference in terms of DM% when ensiled in a 1 kg mini-silo. For D. eriantha, growth stage had no effect on the N concentration of the silage, while for P. maximum the N concentration of silages at full bloom stage was (Relling et al, 2001). In general, growth stage had no significant effect on silage pH, and NH 3 -N, acetic, lactic and butyric acid concentrations of silage.…”

Section: Resultsmentioning

confidence: 77%

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10.4314/sajas.v40i5.65345

2020

South African Journal of Animal Science

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The aim of this study was to compare two tropical grass species, Panicum maximum and Digitaria eriantha, in terms of silage fermentation attributes and certain rumen fermentation characteristics of silage made either at the boot or full bloom stages of growth. A lower silage pH was recorded for the D. eriantha than for the P. maximum silage. Neither species nor maturity stage had a significant effect on silage ammonia nitrogen, or lactic, acetic and butyric acid concentrations. For P. maximum silage total N was higher at full bloom than at the boot stage. D. eriantha had a higher total nitrogen content than P. maximum silage at the boot stage. Rumen pH was lower in sheep fed D. eriantha than P. maximum silage. In P. maximum fed sheep, a higher rumen NH 3 -N concentration was recorded when silage from the full bloom stage was fed compared to silage from the boot stage. In sheep fed D. eriantha silage, higher concentrations of acetic, propionic, butyric and total volatile fatty acids in the rumen were recorded from full bloom than from the boot stage. Neither species nor stage of maturity had significantly influenced the acetic : propionic acid ratio. The results suggested no significant difference between the species, but the full bloom stage showed a higher nutritive value and better preservation compared to the boot stage silage in both D. eriantha and P. maximum silage.

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Section: Resultssupporting

confidence: 90%

Section: Resultssupporting

confidence: 89%

Section: Resultsmentioning

confidence: 77%

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10.4314/sajas.v40i5.65345

2020

South African Journal of Animal Science

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“…This was reflected in relatively higher IVDOM for P. maximum compared to the other standing hays. Although animals have a tendency to first remove preferred and most nutritious plant parts, the opportunity for selection declines with reduced forage supply and an advanced stage of maturity (Relling et al 2001). In this study, the poor quality of the diet selected from C. gayana suggests poor suitability of the species for utilisation as a standing hay.…”

Section: Resultsmentioning

confidence: 73%

Qualitative evaluation of four subtropical grasses as standing hay: diet selection, rumen fermentation and partial digestibility by sheep

Niekerk

Hassen

2009

African Journal of Range & Forage Science

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The nutritive value of four subtropical grasses (Panicum maximum, Anthephora pubescens, Digitaria eriantha and Chloris gayana) standing hay were compared in terms of qualitative intake and partial digestibility by sheep. The species differed significantly in terms of diet quality selected by sheep grazing the standing hay. The rumen ammonia nitrogen (NH 3 -N), total volatile fatty acid and propionic acid concentrations of sheep grazing P. maximum and A. pubescens were higher than those sheep grazing D. eriantha and C. gayana standing hay. Organic matter intake (OMI) (g kg -1 W 0.75 d -1 ), nitrogen intake (g d -1 ), digesta flow, the total N flow, NH 3 -N flow, non-ammonia nitrogen (NAN) flow and NAN disappearance (g d -1 ) in the ileum were higher for sheep grazing P. maximum than for those grazing the other standing hays. The organic matter disappearance in the stomach and small intestine of sheep grazing P. maximum and D. eriantha standing hay was higher than for those sheep grazing either A. pubescens or C. gayana standing hay. The NAN flow/N intake were the highest for sheep grazing P. maximum and A. pubescens compared to C. gayana. The NAN digestibility was, however, not significantly different among the four species. The standing hays (except for C. gayana) seemed to have the capacity to meet the N requirement of the sheep for production, but the OMI (g kg -1 W 0.75 d -1 ) was not sufficient to support maintenance requirement of the sheep.

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“…Penelitian oleh Relling et al (2001) pada Panicum maximum kultivar Gatton pada musim panas mengandung ADF sebesar 28,90%. Namun demikian, beberapa hasil penelitian oleh menunjukan bahwa kandungan ADF pada Panicum maximum menunjukkan nilai yang cukup tinggi yaitu 44,01% (Rahalus et al, 2014) dan 46,85% (Ansah et al, 2010.…”

Section: Nilai Nutrisi Jeramiunclassified

Potensi jerami sebagai pakan ternak ruminansia

Yanuartono¹,

Purnamaningsih²,

Indarjulianto³

et al. 2017

JIIP

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:The basic reason for poor performance of livestock in developing countries includes Indonesia, is qualitative fluctuations in the feed. Therefore knowledge in utilizing agroindustry byproduct as feedstuff to meet the nutrient requirement of animals is important. Rice straw is a crop residue of rice production and can be used as a feed for ruminants because it is easily and cheaply available in many Asian countries. Rice straws have low nutritive value and it is generally limited by several factors such as the low nutritional quality due to high fiber content and lignification process. In Indonesia, rice straw has been widely utilized in livestock feeding systems, thus the need to improve them is imperative as they are an abundant crop residue. Much more attention has been paid to improving its feeding value in order to increase livestock productivity. Many processing methods to improve the nutritive value of rice straw have been investigated. These methods can be classified as physical, chemical or biological. Usually, processing methods improve the nutritive value of straw by increasing its digestible energy content, by increasing feed intake, or by a combination of the two. This paper aims to examine the potential of rice straw as basal feed livestock as well as efforts to improve their nutritional value.

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An evaluation of Panicum maximum cv. Gatton: 2. The influence of stage of maturity on diet selection, intake and rumen fermentation in sheep

Cited by 17 publications

References 29 publications

10.4314/sajas.v40i5.65345

10.4314/sajas.v40i5.65345

Qualitative evaluation of four subtropical grasses as standing hay: diet selection, rumen fermentation and partial digestibility by sheep

Potensi jerami sebagai pakan ternak ruminansia

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