“The oil from industrial hemp seeds (Cannabis sativa) is an ideal source of stearidonic acid, which is a precursor fatty acid for the long-chained n-3 polyunsaturated fatty acids. These fatty acids are important for neonatal development, health and immunity.

Hemp seed oil has been investigated for the influence on human health, but research on the impact in pig nutrition is scarce. The aim of our research was to study the effect of dietary hemp seed oil relative to soybean oil to lactating sows on the transfer of fatty acids to the off-spring and the effect on piglets’ immune and nutritional status.

The hemp seed oil resulted in direct maternal supply with n-3 long-chain polyunsaturated fatty acids (LCPUFA), especially ALA and SDA, and piglets were able to convert these fatty acids obtained via the sow milk intake to C20:5n-3 and C22:5n-3. Furthermore, some interesting effects of the 5% hemp seed oil was obtained with regard to piglet initial body weight gain and glucose, which could be of interest for further research, i.e., the capability of hemp seed oil to benefit piglets during early life.”

https://www.ncbi.nlm.nih.gov/pubmed/32206310

“Our research demonstrated that colostrum and milk fatty acid composition and immunoglobulin concentration, as well as fatty acid profile of sows’ and piglets’ plasma, were influenced by the fatty acid composition of the maternal diets provided during late gestation and lactation. The hemp seed oil resulted in direct maternal supply with n-3 LCPUFAs, especially ALA and SDA, and piglets were able to convert these fatty acids obtained via the sow milk intake to C20:5n-3 and C22:5n-3.”

https://jasbsci.biomedcentral.com/articles/10.1186/s40104-020-0429-3