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Production and composition of sow milk

Eliasson, Christina and Isberg, Sophia, 2011. Production and composition of sow milk. Second cycle, A1N, A1F or AXX ( A1N). Uppsala: SLU, Dept. of Animal Nutrition and Management

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Abstract

Colostrum and milk yield and composition are important for piglet survival and growth Mammogenesis occurs during prepuberty, puberty, gestation and lactation. Colostrogenesis starts before parturition and transcends into lactogenesis 24-36 hours after parturition. If the teats are not suckled, involution will occur. The piglets start to suckle from 20-30 minutes after birth, nurses almost once every hour both day and night and the milk let down is ten to 20 seconds per nursing time. Colostrum yield is roughly around four kg during the first 24 hours after parturition. Milk yield is roughly around nine kg/day. Yield is difficult to measure. The sow reaches peak lactation at around day 12. The semi-natural length of sow lactation is 17 weeks but the length of lactation in production systems ranges from two to five weeks. Colostrum has a higher DM, CP and whey protein content than milk. This is due to the high amount of immunoglobulins in colostrum. Mature milk has a higher content of lactose, fat and caseins than colostrum. Factors that affect yield and composition are genetics, feeding strategies, sow health, parity number, weight of the sow, litter size, total litter weight and mean piglet birth weight.

Main title:Production and composition of sow milk
Authors:Eliasson, Christina and Isberg, Sophia
Supervisor:Agenäs, Sigrid
Examiner:Agenäs, Sigrid
Series:UNSPECIFIED
Volume/Sequential designation:UNSPECIFIED
Year of Publication:2011
Level and depth descriptor:Second cycle, A1N, A1F or AXX
Student's programme affiliation:VY001 Agricultural Science Programme - Animal Science 270 HEC
Department:(VH) > Dept. of Animal Nutrition and Management
Keywords:Sow, Lactation, Colostrum, Milk, Formation, Yield, Composition, Piglet
URN:NBN:urn:nbn:se:slu:epsilon-s-834
Permanent URL:
http://urn.kb.se/resolve?urn=urn:nbn:se:slu:epsilon-s-834
Subjects:Animal husbandry
Language:English
Deposited On:02 Jan 2012 08:52
Metadata Last Modified:20 Apr 2012 14:24

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