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Titolo:
Studies on the prophylactic effect of feeding probiotics, pathogen-specific colostrum antibodies or egg yolk antibodies in ne newborn calves
Autore:
Erhard, MH; Leuzinger, K; Stangassinger, M;
Indirizzi:
Univ Leipzig, Fak Vet Med, Inst Vet Physiol, D-04103 Leipzig, Germany UnivLeipzig Leipzig Germany D-04103 t Physiol, D-04103 Leipzig, Germany Univ Munich, Tierarztliche Fak, Inst Physiol Physiol Chem & Tierernahrung,D-80539 Munich, Germany Univ Munich Munich Germany D-80539 Tierernahrung,D-80539 Munich, Germany
Titolo Testata:
JOURNAL OF ANIMAL PHYSIOLOGY AND ANIMAL NUTRITION-ZEITSCHRIFT FUR TIERPHYSIOLOGIE TIERERNAHRUNG UND FUTTERMITTELKUNDE
fascicolo: 3-4, volume: 84, anno: 2000,
pagine: 85 - 94
SICI:
0931-2439(200011)84:3-4<85:SOTPEO>2.0.ZU;2-1
Fonte:
ISI
Lingua:
GER
Soggetto:
ENTEROTOXIGENIC ESCHERICHIA-COLI; SYSTEMIC AVAILABILITY; VACCINATING DAMS; IMMUNOGLOBULIN-G; SUCKLING PIGS; DIARRHEA; IMMUNIZATION; ABSORPTION; PROTECTION; INFECTION;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Agriculture,Biology & Environmental Sciences
Citazioni:
33
Recensione:
Indirizzi per estratti:
Indirizzo: Erhard, MH Univ Leipzig, Fak Vet Med, Inst Vet Physiol, Tierkliniken 7, D-04103 Leipzig, Germany Univ Leipzig Tierkliniken 7 Leipzig Germany D-04103g, Germany
Citazione:
M.H. Erhard et al., "Studies on the prophylactic effect of feeding probiotics, pathogen-specific colostrum antibodies or egg yolk antibodies in ne newborn calves", J ANIM PHYS, 84(3-4), 2000, pp. 85-94

Abstract

The prophylactic efficacy of feeding probiotics, specific egg yolk antibodies and specific colostrum antibodies on neonatal diarrhoea was investigated in a field trial with calves, grouped (n = 39/40 per group) according to the following treatments: Group I: feeding no additive; Group II: feeding probiotics (5 g powder/day with Bacillus cereus var. toyoi); Group III: feeding egg powder (10 g/day with specific egg yolk antibodies against rotavirus, coronavirus and Escherichia coli F5); Group IV: feeding colostrum antibodies (10 ml/day containing Ig bovine immunoglobulins with specific antibodies against rotavirus, coronavirus and E. coli antigens); Group V: feeding egg powder together with probiotics (according to group II and III). The additives were given twice daily with the meal from day 2 to day 14 post-natum. The presence of infectious agents was proved in fecal samples of all calves. Intestinal infections with rotavirus (30.8% of the calves) predominatedcompared to those with coronavirus (7.1%), E. coli F5 (1.5%) and cryptosporidia (24.2%). In contrast to earlier studies, the manifestation of diarrhoea did not differ significantly between the five groups. Only the growth rate of the calves between day 2 and day 14 of life as a measure of their welfare showed treatment-specific differences. The control group (I) showed the lowest body weight gain of about 5.8 kg (SD 5.0), whereas in the treated groups it averaged 6.3 kg (SD 4.1, p = 0,60; group II), 6.8 kg (SD 4.3, p =0.36; group III), 6.9 kg (SD 4.7, p = 0.61; group IV) and 7.7 kg (SD 4.9, p = 0.08; group V). Considering only the rotavirus-positive calves the bodyweight gain of the control group (I) was 3.5 kg (SD 4.8) and of the treated groups was 3.8 kg (SD 3.3, p = 0.65; II), 5.0 kg (SD 3.5, p = 0.54; III),6.6 kg (SD 4.5, p = 0.05; IV) and 6.1 kg (SD 5.0, p = 0.13; V). Obviously,the feeding of antibodies from colostrum or from egg powder does increase the mean body weight gain. The feeding of probiotics alone has nearly no effect. However, in the combination with specific egg antibodies probiotics seem to have a synergistic effect. In serum from the 198 newborn calves the IgG concentration averaged 4.9 mg/ml serum (SD 3.3). From 93 dams of these calves a sample of the first colostrum could be obtained showing a mean IgGconcentration of 22.0 mg/ml (SD 11.0). IgG levels in the colostrum and in the serum have been positively correlated (r = 0.37, p < 0.05). Calves witha high intensity of diarrhoea had a significantly (p = 0.01) lower mean IgG serum level (3.7 mg/ml; n = 36; SD 2.5) than calves without diarrhoea (5.6 mg/ml; n = 75; SD 4.0).

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Documento generato il 20/09/20 alle ore 00:39:01