Room 141 and Teams: https://teams.microsoft.com/l/meetup-join/19%3ameeting_ZGNjZGE0YWUtMzY2Zi00MjZiLTg2YmMtZmQxY2I0MmY5NzY0%40thread.v2/0?context=%7b%22Tid%22%3a%22be62a12b-2cad-49a1-a5fa-85f4f3156a7d%22%2c%22Oid%22%3a%22fbd28915-dda5-478f-8ecb-a3682dcf0c3a%22%7d
THE STANDARDIZED ILEAL DIGESTIBLE LYSINE-TO-NET ENERGY RATIO IN THE DIETS OF SOWS TO OPTIMIZE MILK NITROGEN RETENTION IS DYNAMIC DURING LACTATION
Lactation is a metabolically demanding phase in a sow’s life that results in a significant increase in nutrient requirements. However, sows are unable to meet their nutrient requirements through voluntary feed intake alone, resulting in the mobilization of energy and protein from body reserves to meet milk production needs. The objective was to determine the dietary standardized ileal digestible (SID) Lysine-to-net energy (NE) ratio that optimized sow milk nitrogen output in each week of lactation. The SID Lysine-to-NE ratio necessary for optimizing milk nitrogen output is dynamic throughout lactation. Therefore, it is possible to create a blended two-diet feeding program where 4.28, 4.42 and 4.67 g SID Lys/Mcal NE is fed during weeks one, two, and three of lactation, respectively. These optimal weekly ratios can be used to create a phase feeding program, which could lead to improved piglet average daily gain and body weights at weaning.
