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Sow feeding management
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Summary Management of the sow herd has direct and indirect effects on the performance of their progeny and consequently, on herd feed conversion (HFC). Reducing sow replacement rate has a small direct effect on HFC due to changes in breeder feed consumption. However, the indirect impact of the associated reduction in the proportion of gilts and their progeny in the breeding herd has a...
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Introduction Longevity of a breeding female is influenced by a wide variety of factors, one of which is the nutritional management of the female throughout her productive life. In modern pork production, the female becomes a part of the breeding herd at birth. Hopefully, several reproductive cycles follow before her removal from the breeding herd. A sound feeding program focuses nutrition throughout the whole life span of...
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Summary Oxytocin is frequently used to decrease farrowing time and birth interval as an aid to prevent stillbirths. However, recent research has shown that oxytocin use can increase the number of pigs stillborn when used too early in the birth process. This research indicates that the reason for increased stillbirths was increased ruptured umbilical cords leading to compromise of the pigs oxygen supply...
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Weight and backfat losses, during lactation, are reduced when lactating sows receive a feed containing Rovabio Excel, a NSP enzyme developed by Adisseo.
Six trials throughout the world, concerning more than 500 sows, with different genetics, different feed compositions, various ages at weaning, prove that on average weight loss can be reduced during lactation by more than 3 kg, and backfat thickness by 24 % from...
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Feedback from the usage of Levucell SB (LSB) in sow diets is rich of visible signs of success during the lactation period and around farrowing. However, these results are usually obtained after feeding LSB throughout the gestation phase whith no visible signs. Consequently, LSB is often perceived as a cost-increasing factor by nutritionist. Production trials allowing a chance to measure any improvement are very unlikely to be performed. Due to 'natural'...
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In pigs, energy derived from the diet is digested in the small intestine through enzymatic hydrolysis or fermented in the large intestine by micro-organisms. In growing animals, hindgut fermentation accounts for 8 to 18% of total dietary energy, increasing with non starch polysaccharides (NSP) levels. Sow diets are higher in fibre than pig diets, but little is known about hindgut fermentation in sows.
A trial was designed to...
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The relaxation of animal disease restrictions will help pig farmers struggling with ever-increasing numbers of cull sows, but there is still a large backlog to clear. The cost of feeding cull sows can be a major item of expenditure but using alternative feeds can help keep costs down says the British Pig Executive (BPEX) but it is not a case of just switching feed. Potatoes, carrots, sugar beet, silage and fodder beet can all be used but nutritional balance and other factors must...
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