Primiparous and Multiparous Sows Have Largely Similar Colostrum and Milk Composition Profiles Throughout Lactation
Jessica R Craig, Frank R Dunshea, Jeremy J Cottrell, Udani A Wijesiriwardana, John R Pluske
ANIMALS | MDPI | Published : 2019
It is important to understand the biological factors influencing the poorer lifetime performance of gilt progeny in comparison to sow progeny and determine whether this may be partially due to differences in lactation performance between primiparous and multiparous sows. It was hypothesized that primiparous sows would have lower levels of immunoglobulin G (IgG) in colostrum and milk compared to multiparous sows, and lower levels of other energetic components. Differences in colostrum and milk composition between ten primiparous and ten multiparous sows (parities 3 and 4) from a commercial herd were examined throughout lactation (day 0, 1, 2, 3, 7, 14, and 21). Overall, there were no (p ≥ 0.0..View full abstract
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Awarded by Australian Pork Limited (APL, Canberra ACT, Australia)
The authors gratefully acknowledge the generous funding for this study from Australian Pork Limited (APL, Canberra ACT, Australia; Project Number 2014/461). J.R.C. is a postgraduate student funded by an Australian Postgraduate Award (APA) from Murdoch University. Thanks to the technical staff from the Research and Innovation unit at Rivalea (Corowa NSW, Australia) for their assistance with sample collection and laboratory analysis. The authors are very grateful for the invaluable laboratory assistance from Josie Mansfield, Aracely Hernandez, and students from Murdoch University.