Abhängigkeit von brutto‐, verdaulicher und umsetzbarer energie des futters sowie des energieansatzes vom gehalt an verdaulichen nährstoffen unter berücksichtigung von stärke und zucker ein beitrag zur weiterentwicklung der energetischen futterbewertung

An animal model experiment was conducted with nine adult sows to study the effect of olive oil and fish oil (40% polyunsaturated fatty acids) on thermogenesis compared to wheat starch as control. The treatments were given to each animal according to a latin square design. The basal diet (20 g DM/kg W0.75) was mainly based on barley and soybean meal, and matched 60% of the ME requirements with all the other nutrients meeting maintenance requirements. The isoenergetic supplements amounted to 176 kJ gross energy per kg W0.75 and day. During each experimental period a complete energy balance was recorded for each animal using indirect calorimetry technique (RQ-method) as well as the carbon-nitrogen-balance technique. The treatments did not influence the digestibility of the rations. Digestibility of energy and of carbon averaged 83.4% and 83.3%, respectively. All three supplements were nearly completely digested as calculated by the difference method. Fish oil increased urine energy and decreased CH4 production, the shifts, however, were in absolute terms very small. The mean O2 consumption was 1,002 l/d showing no significant treatment effects. CO2 production was lowered with olive oil by 10%, and with fish oil by 13% compared to the starch diet. The daily heat production was 20.95, 20.72, and 20.04 MJ when starch, olive oil or fish oil was given. Corrected for equal energy retention the difference of thermogenesis between olive oil and starch was -0.4 MJ/d, and between fish oil and starch -1.2 MJ/d. These differences corresponded to a relation of starch:olive oil:fish oil = 1:0.95:0.86. The relation between starch and olive oil reflected exactly the theoretical expectation, calculated from the ATP regeneration by oxidation of both nutrients. When fish oil was added, the daily heat production was lower than theoretically calculated, which might be interpreted as an effect on the metabolic rate in general rather than especially on the efficiency of ATP formation from fish oil oxidation. In any case, there was no hint of a facultative thermogenesis induced by the oils.

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Thermogenese und Energieverwertung bei Verabreichung von Olivenöl und Fischöl im Modellversuch an Sauen

Müller

Kirchgeßner

1995

Z Ernährungswiss

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Abhängigkeit von brutto‐, verdaulicher und umsetzbarer energie des futters sowie des energieansatzes vom gehalt an verdaulichen nährstoffen unter berücksichtigung von stärke und zucker

Hoffmann¹,

Jentsch

Beyer

1993

Archiv für Tierernaehrung

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On the basis of an analysis of energy metabolism measurements on adult cattle (oxen), fed on 110 rations with very heterogeneous nutrient composition, the following prediction equations for gross energy (y1), digestible (y2) and metabolizable energy (y3) as well as for energy deposition effect of rations (y) (kJ) are presented: y1 = 23.6z1 + 34.0z2 + 17.3z3 + 16.0z4 + 19.1z5 y2 = 23.6x1 + 34.0x2 + 17.3x3 + 16.0x4 + 18.0x5 y3 = 17.3x1 + 34.0x2 + 15.9x3 + 15.1x4 + 15.4x5 y = (6.5x + 26.6x2 + 10.1x3 + 7.5x4 + 8.9x5) (-0.5574 + 0.04050x6 - 0.0002633x6(2)) [table: see text]

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Vorschlag für die einführung eines für alle nutztierarten nach einheitlichen parametern und prinzipien aufgebauten systems der energetischen futterbewertung

Hoffmann

1993

Archiv für Tierernaehrung

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The energy availability from the feedstuffs and the energy requirement of animals are characterized by the metabolizable energy. The metabolizable energy of the feed (feedstuff, ration) is interpreted as potential energy. For comparative analyses within and between animals species with regard to the energetic feed value of single feedstuffs the parameter "relative fat retention effect" is introduced. The metabolizable energy of a ration is estimated in consideration of energy level, live weight and protein production (protein in body gain and milk). The energy requirement is calculated factorial--as a rule by the partial utilization of metabolizable energy for partial performances (e.g. kf, kp, kl) in connection with the level and kind of partial performance; km is not used in the system. The proposed system of energetic feed evaluation is available as "computer variant" as well as "manual variant". The computer programme is fitted first of all to application in research and teaching. (The complete documentation of the proposal for energetic feed evaluation for cattle including a discette for using of the computer programme for scientific applications can be claimed in limited extend from the author.).

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Abhängigkeit von brutto‐, verdaulicher und umsetzbarer energie des futters sowie des energieansatzes vom gehalt an verdaulichen nährstoffen unter berücksichtigung von stärke und zucker ein beitrag zur weiterentwicklung der energetischen futterbewertung

Cited by 6 publications

References 20 publications

Thermogenese und Energieverwertung bei Verabreichung von Olivenöl und Fischöl im Modellversuch an Sauen

Thermogenese und Energieverwertung bei Verabreichung von Olivenöl und Fischöl im Modellversuch an Sauen

Abhängigkeit von brutto‐, verdaulicher und umsetzbarer energie des futters sowie des energieansatzes vom gehalt an verdaulichen nährstoffen unter berücksichtigung von stärke und zucker

Vorschlag für die einführung eines für alle nutztierarten nach einheitlichen parametern und prinzipien aufgebauten systems der energetischen futterbewertung

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