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Gilts have more returns to estrus... but why?
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Use this tool to diagnose problems with the feed conversion ratio. Click on the flowchart or on the buttons within the text to navigate through the different parts of the tool.
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Management, pig farm management, work planning in each production stage: management in gestation, grow finish, batch farrowing
Compare production data, calculate the number of sow, nursery, and finishing spaces, and visualize your tasks on the work schedule by type of BMS.
Tool that allows you to calculate the replacement rate in your farm
Definition for the most commonly used pig terms
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Biocheck.UGent is an independent, risk-based, scientific scoring system for assessing the quality of your on-farm biosecurity.
Definition for the most commonly used pig terms
Use this tool to explore which slurry management strategy best fits your situation. Click on the flow chart or on the buttons within the text to navigate through the different parts of the tool.
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Gilts have more returns to estrus... but why?
Pig reproduction and summer are not good friends, Heat comes, daylight hours drop, fertility decreases and the vets come across more reproductive pathology than during the rest of the year. Why doing always the same does not always yield the same result?
A farrow-to-finish farm went from 10% to 50% of returns to oestrus, and almost 90% of them were regular.
Returns increase in a PRRS-positive farm in the middle of a census increase plus a change of management in the batch farrowing system, from 3 weeks to 1.
Weaning one or several weeks straight into pens, a week worth of space can be gained
The farm reports a problem of low prolificacy (mean annual live births of 11.91) and low fertility in summer, with a marked increase in acyclic returns.
We recommend that producers pay more attention to gilts and sows that are at risk of increasing NPD. Situations of increased risk are described.
The shorter and lower dose regime saves money but there is an increased risk of follicular cyst development, which may occur at doses below 13mg/day.
Meeting batch breeding targets requires availability of enough service-ready weaned sows and gilts.
20 years ago we inseminated gilts when too small, then we inseminated them when too heavy, and now we are returning to an intermediate weight.
There is an unusual increase of the returns-to-oestrus at 31-39 days. The majority are due to sows previously negative to the pregnancy ultrasound testing, and the returns-to-oestrus happened before 42 days.
PCV2 may reach embryos/foetuses upon transplacental spread during viremia or upon insemination with contaminated semen.
The goal is to identify the number of returns to oestrus of the sows quickly and at a glance using coloured pegs.
In the last chapter we examined mating guidelines that came rather close to being ideal, given that they achieve the following objectives: At least one mating should be adjusted to meet the ideal time and achieve the first objective with the least number of matings.
The ideal mating guideline should follow 2 objectives: At least one mating should be adjusted to meet the ideal time and achieve the first objective with the least number of matings.