Weaning more piglets with four times feeding
Posted in: Production by admin on January 1, 2007 | No Comments
Feeding nursing sows four times daily instead of twice increased feed consumption, reduced sow weight loss and led to slightly more piglets weaned in a year-long trial in Germany.
Altogether 168 sows were involved in the project at the Futterkamp Institute. Those fed four times over the 21-day suckling period lost an average two kilograms less weight during that time and produced just over 0.7 weaners more per year.
Although these results are not regarded as statistically significant by the researchers, it is felt that the tendency towards higher numbers of weaned pigs could be an encouragement for farmers to consider ad lib or electronic systems rather than hand feeding twice per day.
Younger sows fed four times daily consumed an average 5.4 kilograms per day compared with 5.1 kilograms for the twice-daily groups, but they had more milk for their litters with piglet weight gain better by one or two grams per day.
The Futterkamp Institute also used this trial to look into the effect of lowering crude protein content in lactating sow rations with the main aim of reducing nitrate in the resultant manure. The sows were either fed 15 per cent crude protein content in rations during suckling or the more conventional 17.5 per cent plus one per cent lysine proportion. The results showed that protein reduction did not really affect performance, while the manure from each sow on the low protein ration contained an average 1.44 kilograms less nitrogen per year.
Recycling of livestock manure in a whole-farm perspective
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This paper argues that a whole farm
perspective taking side-effects and on-farm interactions
into account is needed to determine the cost effectiveness
of mitigation strategies for livestock manure management. Agricultural land (mainly on arable farms)
also receives other types of organic waste, such as sewage
sludge or municipal composts, but they are not considered
here where the focus is on the internal flows of nutrients
on livestock farms as influenced by treatment strategies
and management. It was concluded that it is important to consider pollution control strategies
for a farm in the framework of local and regional
pollution control planning. Investments in environmental
technology should be made where the impact on air
and water quality is most required. Insofar as intensification
of livestock production increases pollution within
an area, the lower production costs may facilitate the
concomitant implementation of environmental technologies,
although Government intervention (e.g., subsidies
to encourage change or stricter regulations) may be
required.
Odour Emissions Following Application of Hog Slurry to Grassland
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Particle size and metal distributions in anaerobically digested pig slurry
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Nitrogen Management of Brown Midrib Sorghum X Sudangrass in the Northeastern USA
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Impact of earthen waste storage on nitrate concentration of surface water
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