Kr. White et al., INCREASING PIGLET SURVIVAL THROUGH AN IMPROVED FARROWING MANAGEMENT PROTOCOL, Canadian journal of animal science, 76(4), 1996, pp. 491-495
The profitability of swine production units is significantly decreased
by the high rate of mortality which occurs during parturition or shor
tly thereafter. This study compared the survival rates of pigs subject
ed to different farrowing management protocols. Sixty litters of cross
bred piglets (York x Landrace) were randomly assigned to one of two pr
otocols for management at farrowing. The first, unattended or control
group, corresponded to the traditional commercial farrowing practice u
sed on most hog farms today which provides for no attention during far
rowing. The second protocol consisted of attending the farrowing and e
xecuting a sequence of procedures to the newborn animals. Mortality ra
tes and their causes, weight gains, and haematocrit levels were record
ed for the first 3 wk of life. Total preweaning mortality was 18.2 and
10.1% for the control and attended groups, respectively. The main imp
act of the treatment was the reduction of the animals that otherwise w
ould have been classified as stillbirths. The stillbirth rate decrease
d from 6.8 to 1.6% while the mortality rate during the first day decre
ased from 5.2% in the unattended litters to 2.2% in the attended litte
rs, respectively. At weaning the weight of the attended piglets was hi
gher (P < 0.05) than those of the unattended animals. The overall weig
ht gain was higher in the attended litters when compared with those of
the control litters (3.99 +/- 0.08 and 3.68 +/- 0.06 kg, respectively
). Processing each pig takes about 2 min, but waiting for the next pig
requires approximately 15 min per piglet. The reduction in mortality
of 44% (equivalent to about one piglet per litter) plus the benefit of
enhanced performance in the attended group could justify the implemen
tation of a farrowing protocol which involves adding the extra labour
at farrowing time, especially if several sows are attended by the same
attendant.