Feeding the Sow: Comparison of Gestational and Lactation Programs
نویسندگان
چکیده
There are a number of reasons that sow nutritional performance during lactation is of great interest to producers. In a series of extension articles, Flowers (2002a,b) indicated that, when troubleshooting reproductive problems in sows, a key event to investigate carefully is feed intake during previous lactation. Besides the reproductive performance of the sow, piglet performance is also intrinsically associated with the nutritional status and, as a result, milk production, of its dam (Noblet and Etienne, 1989). Piglets that are weaned greater than 3.5 kg have a 3x more chance of surviving to market and an 8.5x chance of not being lightweight at 10 weeks of age (Larriestra et al. 2005).
منابع مشابه
Lactating Swine Nutrient Recommendations
Many factors influence sow productive efficiency and sow herd profitability, but inadequate feeding programs for the sow are major contributors to problems with high sow attrition and poor productivity. The primary challenge of feeding highly productive sows involves minimizing the negative nutrient (energy and protein) balance during lactation in order to minimize short-term and long-term repr...
متن کاملNutrition and Feeding for Optimum Reproductive Performance
Since 1970, sow reproductive performance and prolificacy has improved dramatically. Today’s sow is genetically quite different. She is larger framed, with less back fat and more lean body tissue, besides having higher reproductive demands. The prolific, high-lean sow can raise more pigs per year, but also produce more milk resulting in heavier pigs at weaning. However, swine operations have a h...
متن کاملFirst analysis of factors influencing feed intake of sows during lactation
During lactation, sows need to eat a sufficient amount of feed to meet the requirements of milk production to nurture their litter and to sustain their body condition. Overall, information about feed intake of lactating sows is limited. In addition, information about other factors influencing feed intake of the sow may be incomplete. These factors include feeding strategy, lactation length, lit...
متن کاملNational Pork Producers Council Maternal Line National Genetic Evaluation Program: a comparison of sow longevity and trait associations with sow longevity.
Data from the National Pork Producers Council Maternal Line National Genetic Evaluation Program were used to compare longevity of sows from 6 commercial genetic lines and to estimate the phenotypic associations of sow longevity with gilt backfat thickness, ADG, age at first farrowing, litter size at first farrowing, litter weight at first farrowing, average feed intake during lactation, and ave...
متن کاملImpact of sow and litter characteristics on colostrum yield, time for onset of lactation, and milk yield of sows.
The aim of the present study was to estimate the concurrent impact of sow and litter characteristics on sow productivity. Sow productivity was defined as colostrum yield (CY), onset of lactation (the time point when milk secretion increased steeply, approximately 31 h postpartum), transition milk yield (MY; 36-60 h postpartum), and the mean MY in wk 1 to 4 of lactation. Therefore, the study inv...
متن کامل