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Spjuth, Linda, 2003. Påverkar suggors grymtande under digivningen smågrisarnas tillväxt?. SLU, Dept. of Animal Breeding and Genetics, Uppsala. Uppsala: SLU, Dept. of Animal Breeding and Genetics



The pig is unique in the way that it gives birth to a large number of newborns in
each litter. Because of this the sow has developed a special behaviour during
suckling to ensure that not only a part of the litter gets all the milk. Milk is only
available during milk letdown. The piglets have to massage the udder for a long
time before letdown and the more piglets at the udder the sooner the milk comes.
The sow has developed a special grunting pattern to let the piglets know when she
is ready for suckling and to signal milk letdown.
Our aim with this study was to investigate if sows have individual grunting
patterns repeated over time. We also wanted to know if sows with a more distinct
grunting pattern have better growth in their litters. We recorded grunting during
suckling in nine sows at three occasions (two or three days after farrowing and one
and three weeks after farrowing). The piglets were weighed at each occasion. We
also registered the volume of the grunting during suckling.
We found no correlations between sows grunting pattern and piglet growth and
we could not see that sows have individual grunt patterns that repeat themselves
over time.

Main title:Påverkar suggors grymtande under digivningen smågrisarnas tillväxt?
Authors:Spjuth, Linda
Supervisor:Rydhmer, Lotta
Series:Examensarbete / Sveriges lantbruksuniversitet, Fakulteten för veterinärmedicin och husdjursvetenskap, Veterinärprogrammet
Volume/Sequential designation:2003:50
Year of Publication:2003
Level and depth descriptor:Other
Student's programme affiliation:3050A Veterinary Medicine Programme (admitted before July 1, 2007) 330 HEC
Supervising department:(VH) > Dept. of Animal Breeding and Genetics
Keywords:suggor, individuell, grymtning, mönster, smågrisar, vikt
Permanent URL:
Subject. Use of subject categories until 2023-04-30.:Animal feeding
Animal ecology
Deposited On:27 Sep 2017 09:52
Metadata Last Modified:27 Sep 2017 09:52

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