H. Karg et G. Bilkei, The influence of p. p. E-coli booster on the weaning to estrus intervals and on the farrowing rate of the sows, BERL MUN TI, 113(11-12), 2000, pp. 444-446
Citations number
18
Categorie Soggetti
Veterinary Medicine/Animal Health
Journal title
BERLINER UND MUNCHENER TIERARZTLICHE WOCHENSCHRIFT
In a large pig production unit, with high prevalence of E. coli caused post
partal urogenital diseases of the breeding animals and diarrhoea of the pig
lets, the pregant sows received during their late pregnancy a Porcovac plus
(R) E. coli vaccination. The vaccinated sows were assigned to two experimen
tal groups and were treated postpartal (p. p.) as follows:
Group 1 (421 sows): received an E. Coli booster on the first p.p day
Group 2 (299 sows): received a booster on the 7th p. p. day
The following-parameters were evaluated:
A: Weaning - estrus - intervals
B: Farrowing Rate
The results showed a significant (p < 0,05) shorter weaning estrus - interv
al (Parameter A) in group 1 when compared to group 2 (7,21 +/- 1,04 vs. 9,8
4 +/- 1,11). Regarding parameter B (farrowing rate) the groups showed no si
gnificant difference (group 1: 89,9 % vs. group 2: 91,8 %). It is the opini
on of the authors that in large pig production units with high incidence of
urogenital diseases an early p. p. E. coli Booster should be performed, be
cause of its positive effect on the weaning - estrus - intervals.