The assessment of thermal environment in relation to pig production
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Thermal comfort evaluation of three genetic lines of nursery pigs using thermal images
2023, Biosystems EngineeringThe effect of floor cooling on respiration rate and distribution of pigs in the pen
2022, Livestock ScienceEffects of the environment and animal behavior on nutrient requirements for gestating sows: Future improvements in precision feeding
2021, Animal Feed Science and TechnologyCitation Excerpt :For growing and finishing pigs fed ad-libitum and raised on a well-insulated concrete floor, the LCT has been estimated at 13−14 °C and 10−11 °C, respectively. An increase in LCT of 3–4 °C has been reported when the pigs were housed on slatted floor (Verstegen and van der Hel, 1974; Mount, 1975). A wet floor increases the LCT even further (Mount, 1975; NRC, 1981; Fig. 2).
Numerical simulations of airflow and convective heat transfer of a sow
2020, Biosystems EngineeringAn innovative concept building design incorporating passive technology to improve resource efficiency and welfare of finishing pigs
2018, Biosystems EngineeringCitation Excerpt :When pigs are exposed to colder conditions, their level of thermoregulatory heat production increases, energy retention from consumed nutrients is depressed and, as a result, feed efficiency is reduced (Lopez, Jesse, Becker, & Ellersieck, 1991). For housed pigs, the environmental temperature range that means they neither need to divert nutrients to keep warm nor reduce feed intake to keep cool is known as the thermoneutral zone (Mount, 1975). When housed in these conditions throughout the finishing production programme, pigs will return a higher feed efficiency and show improved well-being.
Computational prediction of the effective temperature in the lying area of pig pens
2018, Computers and Electronics in AgricultureCitation Excerpt :The specific requirements depend on the design of the housing system. Using a solid floor as an alternative to a drained or slatted floor in the lying area of pig pens has distinct advantages in relation to (1) animal welfare (reduces e.g. adventitious bursitis (Mouttotou et al., 1998) and facilitates the used of straw), (2) low odour and ammonia emission (Pedersen and Jensen, 2010), (3) low energy consumption (due to reduced temperature requirement (Mount, 1975)), and (4) reduced building costs (savings in the cost of floor construction). Nevertheless, a solid floor is usually not selected by pig producers due to the risk of manure fouling in the lying area, which may increase the workload, imperil animal welfare and adversely affect the indoor air quality.