Works (33)
Updated: November 1st, 2024 20:35
2024 article
Development of an interdisciplinary undergraduate and graduate course in precision livestock farming systems
Leonard, S. M. (2024, May 5). JOURNAL OF ANIMAL SCIENCE, Vol. 102.
author keywords: data science; engineering; technology
Sources: Web Of Science, NC State University Libraries
Added: May 20, 2024
2024 journal article
Impacts of crate design, number of heat lamps and lying posture on the occurrence of shoulder lesions in sows
BIOSYSTEMS ENGINEERING, 247, 249–256.
author keywords: Crate design; Heat lamps; Shoulder lesions; Sows; Welfare
Sources: ORCID, Web Of Science, NC State University Libraries
Added: October 1, 2024
2024 article
Water quality analysis and flow rate comparison between wean-finish swine barns
Kittle, O. C. S., Leonard, S. M., Knauer, M., & Almond, G. (2024, May 5). JOURNAL OF ANIMAL SCIENCE, Vol. 102, pp. 27–27.
author keywords: drinkers; flow rate; water
Sources: Web Of Science, NC State University Libraries
Added: May 28, 2024
2023 article
Comparison of Ammonia Concentrations Between Flush and Pull-Plug Waste Management Systems in Wean-Finish Swine Barns.
Kittle, J., Leonard, S. M., Knauer, M., & Almond, G. (2023, May). JOURNAL OF ANIMAL SCIENCE, Vol. 101.
author keywords: air quality; corrosion; facilities
open access via academic.oup.com (publisher PDF)
Sources: Web Of Science, NC State University Libraries
Added: March 4, 2024
2023 article
Effect of Temperature and Humidity on Daily Feeding Behavior in Swine
Peppmeier, Z., Leonard, S. M., & Knauer, M. (2023, May). JOURNAL OF ANIMAL SCIENCE, Vol. 101.
author keywords: growth; heat stress; pig
Sources: Web Of Science, NC State University Libraries
Added: March 4, 2024
2023 journal article
Estimating backfat depth, loin depth, and intramuscular fat percentage from ultrasound images in swine
ANIMAL, 17(10).
author keywords: Carcass traits; Genetic selection; Growing-finishing swine; Meat quality; Pig
Sources: Web Of Science, NC State University Libraries, ORCID
Added: October 30, 2023
2023 article
Impact of Amount and Solubility of Dietary Fiber Fed During Late Gestation and During the Pre-Farrowing Period on Sow Serum Chemistry and Piglet Vitality Index
Martinez, G. E., Leonard, S., Heugten, E., Wilcock, P., & Rosero, D. S. (2023, October 28). JOURNAL OF ANIMAL SCIENCE, Vol. 101, pp. 313–314.
author keywords: glucose; farrowing; fiber; piglet vitality index
Sources: Web Of Science, NC State University Libraries
Added: December 18, 2023
2023 article
Sow Location Within Farrowing Room Impacts Reproduction During Heat Stress.
Knauer, M., Peppmeier, Z., & Leonard, S. M. (2023, May). JOURNAL OF ANIMAL SCIENCE, Vol. 101.
author keywords: housing; reproduction; sow
Sources: Web Of Science, NC State University Libraries
Added: March 4, 2024
2022 journal article
Gruel Creep Feeding Accelerates Growth and Alters Intestinal Health of Young Pigs
ANIMALS, 12(18).
author keywords: creep feeding; intestinal health; piglet growth; weaning
UN Sustainable Development Goal Categories
13. Climate Action
(Web of Science)
Sources: Web Of Science, NC State University Libraries, ORCID
Added: September 15, 2022
2022 review
Impact of housing environment and management on pre-/post-weaning piglet productivity
[Review of ]. JOURNAL OF ANIMAL SCIENCE, 100(6).
author keywords: farrowing; nursery; physiology; swine; temperature; ventilation
MeSH headings : Animal Husbandry; Animals; Female; Floors and Floorcoverings; Housing, Animal; Lactation / physiology; Swine; Weaning
UN Sustainable Development Goal Categories
13. Climate Action
(Web of Science)
Sources: Web Of Science, NC State University Libraries, ORCID
Added: August 1, 2022
2021 conference paper
Automating ultrasound measurements of back fat and loin depth in swine
Presented at the National Swine Improvement Federation Annual Meeting, St. Louis, MO.
Event: National Swine Improvement Federation Annual Meeting at St. Louis, MO
Source: NC State University Libraries
Added: February 20, 2022
2021 magazine article
Effect of stall size, number of heat lamps during farrowing: Part 1
Leonard, S. M., & Ramirez, B. C. (2021, August). National Hog Farmer.
Source: NC State University Libraries
Added: February 20, 2022
2021 magazine article
Effect of stall size, number of heat lamps during farrowing: Part 2
Leonard, S. M., & Ramirez, B. C. (2021, September). National Hog Farmer.
Source: NC State University Libraries
Added: February 20, 2022
2021 magazine article
Effect of stall size, number of heat lamps during farrowing: Part 3
Leonard, S. M., & Ramirez, B. C. (2021, October). National Hog Farmer.
Source: NC State University Libraries
Added: February 20, 2022
2021 journal article
Effects of farrowing stall layout and number of heat lamps on sow and piglet behavior
Applied Animal Behaviour Science, 239, 105334.
author keywords: Creep; Drinking; Feeding; Location; Posture; Microclimate
Sources: ORCID, Crossref, NC State University Libraries
Added: February 3, 2022
2021 magazine article
Farrowing pen design is focus of precision farming study; Big data enables easier pig behaviour research
Anderson, F., & Leonard, S. (2021, June). Ontario Farmer.
Source: NC State University Libraries
Added: February 20, 2022
2021 journal article
Static and Dynamic Space Usage of Late-Gestation Sows
Transactions of the ASABE, 64(1), 151–159.
author keywords: Animal welfare; Computer vision; Farrowing stall; Gestation stall; Kinect V2; Space allowance
Sources: Crossref, NC State University Libraries
Added: February 4, 2022
2021 article proceedings
Thermal Properties of Concrete Slats During Preheating of Empty Swine Facilities
Presented at the 2021 ASABE Annual International Virtual Meeting, July 12-16, 2021.
Event: 2021 ASABE Annual International Virtual Meeting, July 12-16, 2021
Sources: Crossref, NC State University Libraries
Added: February 4, 2022
2021 conference paper
Understanding and predicting sow behavior at farrowing
Presented at the NC State Annual Summer Research and Creativity Symposium, (Virtual).
Event: NC State Annual Summer Research and Creativity Symposium at (Virtual)
Source: NC State University Libraries
Added: February 20, 2022
2020 journal article
Effects of Farrowing Stall Layout and Number of Heat Lamps on Sow and Piglet Production Performance
Animals, 10(2), 348.
author keywords: creep area; daily gain; farrowing design; housing; lactation; litter uniformity; over-lay; pre-weaning mortality; sow crate; stillborn; sow parity
TL;DR:
Investigating production outcomes for three different farrowing stall layouts (traditional, expanded creep area, expanded sow area) and use of one or two heat lamps found that stall layout and number of heat lamps had no statistical impact on production outcomes, but seasonal differences, sow parity, andNumber of litter mates did have significant effects.
(via Semantic Scholar)
Sources: ORCID, Crossref, NC State University Libraries
Added: February 3, 2022
2020 conference paper
Effects of piglet creep floor area on sow behavior and litter productivity in farrowing stalls
Presented at the American Society of Agricultural and Biological Engineers Annual International Meeting 2020, Omaha, NE.
Event: American Society of Agricultural and Biological Engineers Annual International Meeting 2020 at Omaha, NE
Source: NC State University Libraries
Added: February 20, 2022
2020 conference paper
Initial phases for conducting high temperature and high humidity depopulation research
Presented at the American Association of Swine Veterinarians Annual Meeting, Anaheim, CA.
Event: American Association of Swine Veterinarians Annual Meeting at Anaheim, CA
Source: NC State University Libraries
Added: February 20, 2022
2019 journal article
Characterization of a machine vision system to assess gestating sow space usage
2019 ASABE Annual International Meeting. Presented at the 2019 American Society of Agricultural and Biological Engineers Annual International Meeting, Boston, Massachusetts.
Contributors: * , H. Xin*, T. Brown-Brandl, B. Ramirez *, J. Stinn *, A. Johnson *, K. Liu
Event: 2019 American Society of Agricultural and Biological Engineers Annual International Meeting at Boston, Massachusetts on July 7-10, 2019
TL;DR:
Length, width, and height of the space utilized by sows were calculated for static positions defined as standing and lateral lying, as well as dynamic sequencesdefined as standing up and lying down, which can be used to develop relationships between sow body weight and three dimensional static and dynamic space requirements.
(via Semantic Scholar)
Sources: ORCID, Crossref, NC State University Libraries
Added: February 3, 2022
2019 journal article
Development and application of an image acquisition system for characterizing sow behaviors in farrowing stalls
Computers and Electronics in Agriculture, 163, 104866.
Contributors: * , H. Xin *, T. Brown-Brandl * & B. Ramirez *
author keywords: Animal well-being; Computer vision; Kinect (R); Precision livestock farming; Swine
TL;DR:
A digital and time-of-flight depth imaging system is implemented to evaluate the effects of changing the farrowing environment on sow behavior and potentially well-being and a process with minimal user input is developed to analyze the collected images.
(via Semantic Scholar)
Sources: ORCID, Crossref, NC State University Libraries
Added: February 3, 2022
2019 conference paper
Effects of one or two heat lamps on sow behavior and piglet performance in farrowing stalls
Presented at the 2019 Pig Welfare Symposium, Minneapolis, MN.
Event: 2019 Pig Welfare Symposium at Minneapolis, MN
Source: NC State University Libraries
Added: February 20, 2022
2019 magazine article
Emerging technologies for monitoring sow health and welfare
Leonard, S. M., Smith, B. C., & Ramirez, B. C. (2019, August). National Hog Farmer.
Source: NC State University Libraries
Added: February 20, 2022
2019 magazine article
If one heat lamp is good, is two better?
Hess, A., & Leonard, S. M. (2019, November). National Hog Farmer.
Source: NC State University Libraries
Added: February 20, 2022
2019 conference paper
Implication of modern sow’s static and dynamic space usage on gestation stall design
Presented at the International Symposium on Animal Environment and Welfare, Chongquing, China.
Event: International Symposium on Animal Environment and Welfare at Chongquing, China
Source: NC State University Libraries
Added: February 20, 2022
2018 journal article
An Image Acquisition System for Studying Behaviors of Sows and Piglets in Farrowing Barns
10th International Livestock Environment Symposium (ILES X). Presented at the 10th International Livestock Environment Symposium (ILES X), Omaha, NE.
Event: 10th International Livestock Environment Symposium (ILES X) at Omaha, NE
TL;DR:
The system presented here utilizes a time of flight depth sensor and a digital camera to capture depth and digital images of each sow and litter, housed in individual farrowing stalls, to quantify behaviors of the sows and piglets as affected by dimensions and layout of thefarrowing stalls.
(via Semantic Scholar)
Sources: Crossref, NC State University Libraries
Added: February 5, 2022
2018 conference paper
An image acquisition system for studying behaviors of sows and piglets in farrowing barns
10th International Livestock Environment Symposium, ILES 2018.
Source: ORCID
Added: February 3, 2022
2018 article proceedings
Spatial and Diurnal Variations of Particulate Matter Concentration of a Pilot-Scale Aviary Layer House in Winter
Presented at the 10th International Livestock Environment Symposium (ILES X).
Event: 10th International Livestock Environment Symposium (ILES X)
Sources: Crossref, NC State University Libraries
Added: February 4, 2022
2018 conference paper
Spatial and diurnal variations of particulate matter concentration of a pilot-scale aviary layer house in winter
10th International Livestock Environment Symposium, ILES 2018.
Source: ORCID
Added: February 3, 2022
2017 conference paper
Quantification of static and dynamic spaces for sows
Presented at the American Society of Agricultural and Biological Engineers Annual International Meeting 2017, Spokane, WA.
Event: American Society of Agricultural and Biological Engineers Annual International Meeting 2017 at Spokane, WA
Source: NC State University Libraries
Added: February 20, 2022
Employment
Updated: February 24th, 2021 12:50
2020 - present
North Carolina State University Raleigh, North Carolina, US
Assistant Professor
Animal Science
Education
Updated: January 13th, 2020 11:20
2016 - 2020
Iowa State University Ames, Iowa, US
Agricultural and Biosystems Engineering, PhD
2012 - 2016
North Carolina State University Raleigh, North Carolina, US
Biological Engineering, BS
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