Calcium Release from Various Roughages and Influence of Ca on Dry Matter Degradability of Roughages in the Rumen and Apparent Digestibility of Ration

Flachowsky, Gerhard; Schneider, Astrid; Ochrimenko, W. I.; Kronemann, H.

doi:10.1080/09712119.1994.9706023

Cited by 3 publications

(3 citation statements)

References 15 publications

(14 reference statements)

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“…This indicates that more Ca flowed into the bags and adhered to the feed particles than was released from the feeds during the observed time intervals. This supports observations that Ca plays a prominent role in cation exchange processes at cell-wall surfaces (Emanuele and Staples, 1990;Flachowsky and Grim, 1992;Flachowsky et al, 1994). After 48 h of ruminal incubation, the disappearance of Ca from the three commodities ranged from 60 to 87%.…”

Section: Discussionsupporting

confidence: 75%

Evaluation of three rape seed commodities in the rumen of steers 2. Degradation of fibre fractions and disappearance of macrominerals <i>in situ</i>

Südekum¹,

Andree²,

Höhler³

1997

J. Anim. Feed Sci.

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Rate and extent of ruminal degradation of detergent fibre fractions and disappearance of macrominerals (Ca, P, Mg, Na) of rape seed and of untreated and formaldehyde-treated rapeseed meals containing less than 8 ,umol glucosinolates per gram of dry matter were investigated. Feeds were incubated in polyester bags in the rumen of three fistulated steers for 0, 2, 4, 8, 16, 24 and 48 h.Degradation characteristics of fibre fractions indicated that rapeseed fibre can be more degradable than previously assumed. The rape seed had the most degradable neutral and acid detergent fibre fractions. Fibre fractions of the formaldehyde-treated rapeseed meal were more degradable than those of the untreated meal. The effective degradabilities of neutral detergent fibre at assumed ruminal passage rates of 2, 5 and 8%/h ranged from 62 to 53% for the rape seed, 52 to 38% for the untreated meal and 65 to 49% for the formaldehyde-treated meal. The three rape seed commodities were a good source of macrominerals for ruminants, as indicated by macromineral concentrations in the feeds and by pattern and extent of ruminal disappearance of the minerals. The rape seed had a faster rate of disappearance of most macrominerals than the two meals. In contrast to fibre, macrominerals tended to disappear at a faster rate from the untreated meal than from the formaldehyde-treated meal.

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Section: Discussionsupporting

confidence: 75%

Evaluation of three rape seed commodities in the rumen of steers 2. Degradation of fibre fractions and disappearance of macrominerals <i>in situ</i>

Südekum¹,

Andree²,

Höhler³

1997

J. Anim. Feed Sci.

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“…However, only 45% calcium was dissolved out of forages. Other authors (van Eys and Reid, 1987;Emanuele at al., 1991;Flachowsky et al, 1994;Gralak et al, 1997;Třinácty et al, 2000) found a similar tendency and they also described differences between the feeds. Differences in solubility of individual mineral elements can be ascribed to the ability of cell walls to bind certain elements to their surface (cation exchange capacity) that can also be influenced by NDF concentration in feed (Emanuele et al, 1990) or to the content of organic acids in plant structures underlying the ability to bind and retain ions of metals (Ward et al, 1979;Van Soest, 1982).…”

mentioning

confidence: 53%

“…Solubility and release from the structure of feed are important preconditions of utilization of mineral elements in animals. There are large differences between feeds in the content of cell walls, and in the representation of individual fractions (cellulose, hemicelluloses and lignin) that influence the degradability of cell walls (Čerešňáková et al, 2000) and release of mineral elements (Ledoux and Martz, 1991;Flachowsky et al, 1994).…”

Section: Resultsmentioning

confidence: 99%

In sacco NDF degradability and mineral release from selected forages in the rumen

Čerešňáková¹,

Fl’ak²,

Poláčiková³

et al. 2005

CZECH J ANIM SCI

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An in sacco technique was used to measure NDF degradability and release of Mg, Ca, Zn, Cu, Fe from six forages -lucerne hay from the 1 st cut (LH 1 ), from the 2 nd cut (LH 2 ), orchard grass (G), grass silage (GS), red clover silage treated with Feedtech (CS FT ) and/or with Kofasil (CS KO ). The forages differed in the content of NDF and minerals. There were large differences (P < 0.01) in element release in the rumen between experimental forages and the particular elements.

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Mineral release kinetics of common tropical green forages in the rumen of cattle

PAL,

SINGH,

PRASAD

et al. 2015

Indian J of Anim Sci

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The potential release of macro and micro minerals from six tropical green forages were determined by in sacco rumen degradability method. The release of minerals in the rumen were estimated in green forages (maize fodder, hybrid napier, doob grass, para grass, berseem and sunhemp) by incubating the forage samples for different periods, i.e. 10h, 24h, 48h and 72h in three adult cattle fitted with rumen cannula by in sacco nylon bag technique. The release of macro and micro minerals from experimental green forages were significantly (P<0.001) different and highest release was observed in potassium (K) and lowest in calcium (Ca) from different classes of forages. The pattern of macro minerals release from different categories of green forages was as follows: K > Mg > P > Ca. Among the green forages, berseem and sunhemp showed highest release of various minerals in the rumen at different periods of incubation. Manganese (Mn) release was lowest among the micro minerals from experimental green forages in the rumen. The pattern of micro minerals release from green forages was as follows: Cu > Zn > Mn. Results obtained from the study concluded that the potential availability of various minerals in the rumen from different classes of green forages was different and this information may be useful in strategic supplementation of minerals to animals through green forages.

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Calcium Release from Various Roughages and Influence of Ca on Dry Matter Degradability of Roughages in the Rumen and Apparent Digestibility of Ration

Abstract: Flachowsky, G., Schneider, A., Qchrimenko, W.I. and Kronemann, H. 1994. Calcium release from various roughages and influence of Ca on dry matter degradability of roughages in the rumen and apparent digestibility of ration. J. Appl. Anim. Res., 6 : 43-57.

Cited by 3 publications

References 15 publications

Evaluation of three rape seed commodities in the rumen of steers 2. Degradation of fibre fractions and disappearance of macrominerals <i>in situ</i>

Evaluation of three rape seed commodities in the rumen of steers 2. Degradation of fibre fractions and disappearance of macrominerals <i>in situ</i>

In sacco NDF degradability and mineral release from selected forages in the rumen

Mineral release kinetics of common tropical green forages in the rumen of cattle

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