Zur Bedeutung einer stabilen Magen‐Darm‐Flora bei wachsenden Tieren

1. Infectious diseases reduce productivity and diminish animal welfare. 2. Appropriate nutrition may aid in minimising the incidence of diseases by enhancing immunity. 3. An understanding of the pressures imposed by evolution that underlie poultry nutrition as well as those which underlie immunity provides focus to the field of nutritional immunology. Additional understanding is provided by knowing the specific cellular mechanisms by which diet affects immunity, and how these mechanisms pertain to specific nutrients and pathogens. 4. These approaches indicate that higher inclusion rates of all nutrients are not always better and that the traditional ideas of adding a surfeit of specific nutrients to improve immunity does not usually serve us well. 5. Understanding the nuances of nutrition and immunity is important for optimising bird health and productivity, and will be an important contributor towards fulfilling the consumer's conflicting demands for more natural production and better animal welfare.

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Nutrition and the immune system

Klasing

2007

British Poultry Science

278

184

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Die Leistung nach fünf Wochen Säugezeit abgesetzter Ferkel in Abhängigkeit von der Absetzmasse, der Futter zusammensetzung und dem Einsatz eines wirksamen Ergotropikums

Schöne

Lüdke²,

Bryś³

et al. 1988

Archiv für Tierernaehrung

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In a three-factorial experiment with 216 piglets of the same age (33 +/- 4 days) but a different weight (weaning weight from 5.5 to 9 kg) a conventional piglet rearing feed containing 20% crude protein (standard), a high-energy diet and a low-protein diet (16% crude protein) were tested. In three weaning weight classes the three diets were fed without or with Bisergon [2-N-(2-hydroxyethyl)-carbamoyl-3-methylquinoxaline-1.4-dioxide] over a period of 21 days. From the 22nd to the 71st day after weaning all the piglets received the standard diet without ergotropic. Among the factors studied the Bisergon supplement had the biggest effect. The additional weight gain varied from 9% in case of heavy piglets fed the high energy diet to 150% in case of light piglets fed the low protein diet. The ergotropic improved feed conversion by 22% and lowered the frequency of gastrointestinal diseases requiring treatment by 28%. At the end of the rearing period the weight of the piglets initially fed with Bisergon (means = 34.6 kg) was significantly higher than that of the control animals (means = 31.6 kg). The weaning weight and the diets influenced the final weight especially in the groups without ergotropic. In this case the piglets fed with the high-energy diet gained 30% more and those fed with the low-protein diet 40% less compared with the standard group. The average live weight gain of the light piglets (weaning weight 6.1 kg) was 30% lower than that of the heavier piglets (weaning weight 8.5 kg). The frequency of treatment against diarrhoea of the heavy piglets was by one third lower than that of the light animals. The piglets fed with the low-protein diet appeared to show a limitation of gastrointestinal diseases, but these animals also had the lowest feed intake. Independent of the Bisergon supplementation the weaning weight clearly influenced the live weight after the 10-week experiment. The initially better development of the animals started with the high-energy diet was compensated. In contrast to this, the piglets weighing 6.1 and 7.2 kg fed with the low-protein diet could not compensate the retarded development in comparison with the piglets fed with the standard or the high-energy diet. This experiment confirms the enormous improvement of the performance and of the health status of weaned piglets caused by the ergotropic Bisergon.(ABSTRACT TRUNCATED AT 400 WORDS)

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Untersuchungen zur Einsatzwürdigkeit von unbehandeltem, HCl-behandeltem und teilhydrolysiertem Strohmehl im Fütterungsregime für Ferkel nach frühem Absetztermin

Münchow

Berg²

1989

Archiv für Tierernaehrung

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In studies with piglets of the country race the applicability of variously treated straw materials was tested in comparison with conventional concentrate feeding (I) after an early weaning date (30th-35th day of life) over an 8-week period (1st-8th week of keeping). In the rations containing 10% straw (straw-concentrate mixtures), untreated (II), HCl treated (III: HCl treatment without steaming) and partly hydrolyzed straw meal (IV: HCl treatment with subsequent steaming) were used in the feeding. Samples were taken of 4 killed animals each in the 2nd and 8th weeks of keeping for the qualitative histologic assessment of palatum durum, oesophagus and stomach, duodenum and caecum, colon ascendens, colon descendens and rectum. Although significantly lower pH values in the stomach were registered after the feeding of feed mixtures III and IV due to increased acidity (pH value decrease by 1.3 to 1.5 units) in comparison to the values in I and II, the lamina epithelialis of the palatum durum remained intact in all groups and without any signs of cauterization. Equally, considerable changes in the comparison of the feeding groups could not be detected in the structures of the oesophagus and the stomach walls or in the qualitative histologic assessment of the duodenum and the caecum. However, there were clearly distinguishable group specifics with regard to the formation of lymphoreticular tissue in the stomach and for the colon ascendens.(ABSTRACT TRUNCATED AT 250 WORDS)

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Zur Bedeutung einer stabilen Magen‐Darm‐Flora bei wachsenden Tieren

Cited by 3 publications

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Nutrition and the immune system

Nutrition and the immune system

Die Leistung nach fünf Wochen Säugezeit abgesetzter Ferkel in Abhängigkeit von der Absetzmasse, der Futter zusammensetzung und dem Einsatz eines wirksamen Ergotropikums

Untersuchungen zur Einsatzwürdigkeit von unbehandeltem, HCl-behandeltem und teilhydrolysiertem Strohmehl im Fütterungsregime für Ferkel nach frühem Absetztermin

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