ArticleJournal of animal science2022
Electronically controlled cooling pads can improve litter growth performance and indirect measures of milk production in heat-stressed lactating sows.
Article in Journal of animal science, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 11 papers.
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Who cites it
11 citing papers in PubMed, 14 citations in OpenAlex.
- Proof-of-concept thermoelectrically cooled sow-cooling mat.Scientific reports · 2026Article
- Material consequences: an initial assessment of the influence of flooring type on lactating sow thermoregulation in summer heat.Translational animal science · 2026Article
- Recent feeding history drives prediction of daily feed intake in lactating sows.Translational animal science · 2026Article
- Fetal programming under maternal heat stress: a focus on skeletal muscle growth and nutrition in livestock.Journal of developmental origins of health and disease · 2025Review
- Conductive cooling and Moringa oleifera supplementation of heat stressed sows during late gestation and lactation alters the cheek cell lipidome of neonatal pigs.Journal of animal science · 2025Article
- Phenotypic assessment of F0 generation lactating sows genomically selected for heat stress tolerance.Journal of animal science · 2025Article
- Determining the optimal macroenvironment temperature to house lactating sows and their litters.Journal of animal science · 2025Article
- The impact of cooling and Moringa supplementation on oxidative stress in serum and milk, including milk cytokines, in heat stressed lactating sows and their litters.Translational animal science · 2025Article
- The effect of electronic cooling pads and Moringa oleifera supplementation from late gestation to weaning on sow production performance under heat stress conditions.Journal of animal science · 2024Article
- Article
- Evaluation of the effect of the indoor environment on the physiological responses of early-gestation sows in a commercial house in China.Frontiers in veterinary science · 2023Article
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Authors and funding
7 authors at 2 institutions in 1 country.
Funding
Abstract
Heat stress (HS) decreases lactation output in sows due to an attempt to reduce metabolic heat production. However, this negatively affects litter growth performance. Therefore, the study objective was to determine whether electronically controlled cooling pads (ECP) would improve indirect measures of lactation output (e.g., total heat production [THP]) and litter growth performance in HS exposed sows. Over two repetitions, 12 multiparous (2.69 ± 0.85) lactating sows (265.4 ± 26.1 kg body weight [BW]) and litters were assigned to either an ECP (n = 3/repetition) or a non-functional ECP (NECP; n = 3/repetition) and placed into farrowing crates within indirect calorimeters from days 3.7 ± 0.5 to 18.7 ± 0.5 of lactation. Litters were standardized across all sows (11.4 ± 0.7 piglets/litter), and sows were provided ad libitum feed and water. All sows were exposed to cyclical HS (28.27 ± 0.26 °C nighttime to 33.09 ± 0.19°C daytime). On days 4, 8, 14, and 18 of lactation, indirect calorimetry was performed on each individual sow and litter to determine THP and THP/kg BW0.75. Body temperature (TB) was measured hourly using vaginal implants, and respiration rate (RR; breaths per minute [bpm]) was measured daily at 0700, 1100, 1300, 1500, and 1900 h. Sow feed intake (FI) was assessed daily. Litter weights were obtained at birth, on days 4, 8, 14, and 18 of lactation, and at weaning. Data were analyzed using PROC GLIMMIX with sow and/or litter as the experimental unit. An overall decrease (P < 0.01; 25 bpm) in RR and maximum daily TB (P = 0.02; 0.40 °C) was observed in ECP vs. NECP sows. An increase in THP (P < 0.01; 20.4%) and THP/kg BW0.75 (P < 0.01; 23.1%) was observed for ECP when compared with NECP sows and litters. Litter average daily gain and weaning weight were increased (P < 0.05; 25.0 and 19.2%, respectively) for ECP vs. NECP litters. No FI differences were observed (P = 0.40) when comparing ECP (5.66 ± 0.31 kg/d) and NECP (5.28 ± 0.31 kg/d) sows. In summary, ECPs improve litter growth, thermoregulatory measures, and bioenergetic parameters associated with greater milk production in lactating sows exposed to cyclical HS.
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