Untersuchung zum Vergleich des Bilanzverfahrens und der Tierkörperanalyse zur Messung des Protein‐, Energie‐ und Mineralstoffansatzes von Aufzuchtferkeln<sup>1</sup>

The effects of post-valve T-caecum (PVTC) cannulation and end-to-side ileo-rectal anastomosis (IRA) on growth performance, nitrogen retention and intestinal fermentation were measured in growing pigs by comparison with a control group of intact animals. There were no differences between PVTC-pigs and intact pigs in growth performance and N balance. In IRA-animals reduced growth (P < OOl), less efficient feed conversion (P < 0.01) and decreased N retention (P < 0,001) were found. Indices of fermentation measured in ileal digesta of PVTC-and IRA-pigs were considerably different. In TRAanimals the concentration of volatile fatty acids (VFA) was about 112-162 mmol/l, higher (P < 0,001) than in digesta of PVTC-pigs (20-31 mmol/l). The molar proportions of acetate and propionate depended (P < 0.01 and P < 0.001 respectively) on the digesta-collection technique. Concentrations and ratios of VFA measured in PVTC-pigs were similar to reported values. Diaminopimelic acid (DAPA) concentration and N:DAPA ratios measured in digesta were significantly (P < 0.05 and P < 0001 respectively) different between treatments. All digesta variables measured showed increased microbial activity in digesta of IRA-pigs; thus, an influence on digestibility measurement can be assumed.Ileo-rectal anastomosis : Post-valve T-caecum cannulation : Growth performance : N balance: Pig ~-Digestibility measured a t the terminal ileum has been shown to be the best method for calculating the availability of amino acids in the pig (Zebrowska, 1973). Therefore, three new methods for collection of intestinal digesta a t the terminal ileum have been developed during the last decade. Ileo-colic post-valve fistulation (Darcy ct ul. 1980) has been described as very difficult and time-consuming for routine measurement (Darcy c't ul. 1980). Ileo-rectal anastomosis (IRA) has been proposed as an alternative collection method (Picard et ul. 1984;Darcy-Vrillon & Laplace, 1985; Souffrant et ul. 1985; Hennig rf ul. 1986). The most important advantage of IRA is that digesta can be collected quantitatively https://www.cambridge.org/core/terms. https://doi

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Effect of ileo-rectal anastomosis and post-valve T-caecum cannulation on growing pigs

Köhler

Mosenthin

Verstegen

et al. 1992

Br J Nutr

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Untersuchungen zur leerkörpermassezunahme, zum protein‐, fett‐ und energieansatz sowie zur verwertung der umsetzbaren energie für den energieansatz bei schwarzbunten bullen

Gabel

Papstein²

1995

Archiv für Tierernaehrung

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The protein, fat and energy deposition determined in 6 series of individual feeding experiments with different energy supply on slaughter steps (altogether 458 animals) and whole body analysis were generalized in this publication on nonlinear regression analyses. The protein deposition per kg empty body weight gain is influenced by empty body weight, it takes off with increase of the empty body weight. At low empty body weight (100-200 kg) the protein deposition per kg empty body weight gain is small increased with increasing of empty body weight gain, at high empty body weight it is reduced continuously. The fat deposition per kg empty body weight gain increases progressively with the empty body weight and with the empty body weight gain respectively. The energy deposition per kg empty body weight gain increases with increase of empty body weight and of empty body weight gain. It showed the same development like the fat deposition. The protein, fat and energy deposition per kg live weight gain are calculated and tabulated in dependence on the live weight and the live weight gain.

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Retention and utilization of amino acids in piglets fed ad libitum or restrictively diets supplemented with organic acids

Walz

Pallauf²

1997

Archiv für Tierernaehrung

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In a metabolic trial 4 groups of 8 piglets of 5 kg weight each were kept individually for 45 days (final weight 23 kg) and fed a practical diet. At the beginning of the experiment the body amino acid contents of an additional group of 8 piglets were determined by carcass analysis, and at the end of the experiment the body amino acid contents of the 4 test group piglets (A = control fed ad libitum, B and C = supplement of 1.5% fumaric acid fed ad libitum or restrictively, D = supplement of 1.5% citric acid fed ad libitum) were also analysed. The amino acid retention during the experimental period was determined by difference. The supplements of fumaric or citric acid did not influence the amount of the amino acid retention. The quotient of amino acid retention to amino acid consumed or the "productive amino acid value" was calculated and the maintenance requirements of essential amino acids for piglets were used to estimate the productive amino acid value for both retention and maintenance. The mean amino acid retention amounted to about 56 g/d, i.e. 3.49 g/kg W0.75.d of essential amino acids. The essential amino acid requirements for maintenance was 2.0 g, i.e. 0.29 g/kg W0.75.d, showing a variation of 4% (Leu) to 20% (Met+Cys) when related to the amount of the corresponding amino acid retention. With regard to the amino acid pattern for retention of the nutritionally most important amino acids, the following ratios were found: Lys, 100 (6.27 g/16 g N): Met+Cys, 48 (3.03 g): Thr, 56 (3.49 g): Trp, 13 (0.80 g). The productive amino acid values ranged from 40% (Trp), 55% (Thr), 66% (Met) to 80% (Lys). Under the conditions investigated, neither the supplements of organic acids nor the feed restriction influenced the amino acid utilization.

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Untersuchung zum Vergleich des Bilanzverfahrens und der Tierkörperanalyse zur Messung des Protein‐, Energie‐ und Mineralstoffansatzes von Aufzuchtferkeln¹

Cited by 9 publications

References 19 publications

Effect of ileo-rectal anastomosis and post-valve T-caecum cannulation on growing pigs

Effect of ileo-rectal anastomosis and post-valve T-caecum cannulation on growing pigs

Untersuchungen zur leerkörpermassezunahme, zum protein‐, fett‐ und energieansatz sowie zur verwertung der umsetzbaren energie für den energieansatz bei schwarzbunten bullen

Retention and utilization of amino acids in piglets fed ad libitum or restrictively diets supplemented with organic acids

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Untersuchung zum Vergleich des Bilanzverfahrens und der Tierkörperanalyse zur Messung des Protein‐, Energie‐ und Mineralstoffansatzes von Aufzuchtferkeln1

Cited by 9 publications

References 19 publications

Effect of ileo-rectal anastomosis and post-valve T-caecum cannulation on growing pigs

Effect of ileo-rectal anastomosis and post-valve T-caecum cannulation on growing pigs

Untersuchungen zur leerkörpermassezunahme, zum protein‐, fett‐ und energieansatz sowie zur verwertung der umsetzbaren energie für den energieansatz bei schwarzbunten bullen

Retention and utilization of amino acids in piglets fed ad libitum or restrictively diets supplemented with organic acids

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Product

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Untersuchung zum Vergleich des Bilanzverfahrens und der Tierkörperanalyse zur Messung des Protein‐, Energie‐ und Mineralstoffansatzes von Aufzuchtferkeln¹