Energiebedarf gravider und laktierender Sauen

Hoffmann

et al. 1992

Self Cite

The effect of energy deposition and the utilization of feedstuffs and rations were compared between growing and adult pigs. The good agreement in the data leads to the conclusion, that the energy deposition effect of feedstuffs and rations in growing pigs can be estimated with an equation based on measurements in adult pigs. Exceptions are feedstuffs which are digested bacterially to a relatively high part in the large intestine, as e. g. sugar beet pulp, raw potatoes or similar feed. VERGLEICH ZUR ENERGIEANSATZWIRKUNG UND ENERGIEVERWERTUNG VON FUTTERMITTELN UND RATIONEN ZWISCHEN WACHSENDEN UND ADULTEN SCHWEINEN Es wurden Vergleiche zur Energieansatzwirkung und Energieverwertung von Futtermitteln und Rationen zwischen wachsenden und adulten Schweinen durchgefiihrt. Die gute Dbereinstimmung in den Ergebnissen flihrt zu der SchluBfolgerung, daB die Energieansatzwirkung von Futtermitteln und Rationen beim wachsenden Schwein mit einer Gleichung geschatzt werden kann, die auf Messungen am ausgewachsenen Schwein basiert. Ausnahmen sind Futtermittel, die zu einem gr6fieren Anteil bakteriell im Dickdarm verdaut werden, wie z.B. Trockenschnitzel, rohe Kartoffeln oder ahnliche Futtermittel.

Section: Comparison Of Energy Deposition and Utilization Of Feedstuffmentioning

confidence: 86%

Comparison of Energy Deposition and Utilization of Feedstuffs and Rations Between Growing and Adult Pigs

Hoffmann

et al. 1992

Self Cite

Untersuchungen zur energetischen Verwertung von Rationen mit Trockenkonzentraten, Kartoffeln, Zuckerrüben, Apfelpektin und Rohrzucker durch wachsende intakte und ileorektostomierte Schweine

Herrmann

et al. 1991

Results of the measuring of the total metabolism of growing intact pigs (INT) and pigs with ileorectal anastomoses (IRA) are compared. The 16 comparisons are based on studies with rations of dried feedstuffs and rations containing between 30 and 50% of the DM raw or steamed potatoes and sugar beets, sucrose and apple pectin. On an average of all comparisons the relative values for the digestibility of energy, DM and the organic matter as well as for the metabolizability of the energy were between 81 and 82% (values measured at INT animals = 100). The comparison also refers to the crude nutrients, the water-soluble carbohydrates, the starch and the pectin. As a tendency, the IRA utilized the metabolizable energy better than the INT animals. The energy maintenance requirement of the IRA animals was--by 15%--significantly higher than that of the INT animals. There is not yet an answer to the question in how far comparative studies of INT and IRA animals make verified statements with regard to the differences in the energetic utilization of the precaecally and postileally digested nutrients possible. For this, further experiments will be necessary.

Studies on energy and nitrogen metabolism of pregnant and lactating sows as well as suckling piglets

Schiemann

et al. 1995

In 23 litters, each with 10 or 11 piglets, the energy and nitrogen metabolism was measured on base of 218 body analyses in suckling piglets and on base of 96 total metabolism experiments in early weaned piglets, combined with 134 body analyses. The studies were carried out as part of a complex experimental program for the factorial derivation of energy and protein requirement of piglets and for measuring the milk production of lactating sows. The energy maintenance requirement of suckling piglets (sow's milk nutrition, I) and of early weaned piglets (sow's milk replacement on the basis of cow's milk, II) amounted to 468 (I) and 451 kJ (II) metabolizable energy per kg LW0.75 . d, the utilization of of metabolizable energy for energy deposition to 70(I) and 72% (II). With mean live weight gains (LWG) of 161 and 162 g per animal and day the cost per kg LWG amounted to 19.9 and 20.4 MJ gross energy, 19.3 and 19.4 MJ metabolizable energy as well as 14.4 and 14.2 MJ net energy-fat in suckling and early weaned piglets resp. The mean energy content of the LWG amounted to 8.9 (I) and to 7.9 MJ/kg (II).