Dr. Rosero & Dr. R. Dean Boyd: Overcoming Summer Dip: Use of Soybean Meal to Maximize Carcass Weight | Ep. 131

Dr. Rosero & Dr. R. Dean Boyd: Overcoming Summer Dip: Use of Soybean Meal to Maximize Carcass Weight | Ep. 131

Author: Wisenetix August 8, 2024 Duration: 10:42

During summer months, pig producers often face a decline in carcass weight due to the adverse impact of heat stress on pigs and the replacement of soybean meal with intake-reducing ingredients. This situation presents a significant financial hurdle for producers, especially as it usually coincides with peak hog prices, thereby missing potential revenue opportunities.

The prohibitive cost of fats makes the frequently used high-energy density diets economically unfeasible. Leveraging on extensive research that highlights the critical role of soybean meal in enhancing the growth performance of pigs, we propose a summer nutrition program that uses high levels of soybean meal and excludes feed intake-reducing ingredients. Listen and watch! 


“The persistent inferior carcass weight decline during the summer months remains a critical issue in the industry. That decline in carcass weight and resulting financial losses during this period can be greatly minimized with the strategic use of higher levels of soybean meal in grow-finish diets.” - Dr. R. Dean Boyd


“It’s critically important to understand the implication of feed intake-reducing ingredients, like DDGs, when attempting to maximize carcass weight during the summer months. Formulating based on margin over feed cost versus least cost is a profit-enhancing concept for swine nutritionists to consider.” - Dr. David Rosero


  • (00:00) Introduction 
  • (00:31) Impact of summer heat on carcass weight
  • (01:21) Economic implications of carcass weight decline
  • (02:46) Soybean meal's role in minimizing weight loss
  • (05:30) Designing summer feeding programs
  • (08:00) Most important takeaway for nutritionists
  • (09:46) Closing thoughts


Meet the guests: Dr. David Rosero is an assistant professor of animal science at Iowa State University. His research program focuses on conducting applied research on swine nutrition and the practical application of smart farming. He previously served as the technical officer for The Hanor Company, overseeing nutrition, research, and innovation efforts.


Dr. R. Dean Boyd with Nutrition Research, LLC, is the former technical director and nutrition leader for the Hanor Company and its Triumph Foods group (2002–2020). His team managed the nutrition program for 85,000 sows and 2.35 MIL pigs. He is an adjunct professor at North Carolina State and Iowa State Universities in animal nutrition. 


This episode of the Swine Nutrition Blackbelt Podcast is Sponsored by:

- US Soy


𝗟𝗶𝘀𝘁𝗲𝗻 𝗼𝗻 𝗔𝗽𝗽𝗹𝗲 𝗣𝗼𝗱𝗰𝗮𝘀𝘁𝘀, 𝗦𝗽𝗼𝘁𝗶𝗳𝘆 𝗼𝗿 𝗮𝗻𝘆 𝗺𝗮𝗷𝗼𝗿 𝗽𝗹𝗮𝘁𝗳𝗼𝗿𝗺.


Instagram: Swine Campus

LinkedIn: Swine Campus

Website: swinenutritionblackbelt.com


For swine nutritionists, the sheer volume of information can be overwhelming, and finding truly actionable insights is a constant challenge. The Swine Nutrition Blackbelt Podcast, presented by Wisenetix, cuts through the noise by delivering concentrated wisdom from leading global experts. Each episode is designed to fit into a busy schedule, offering a focused, nine-minute dive into a specific topic that's actually working in the field today. You'll hear directly from researchers and practitioners at the forefront of the industry, discussing practical applications, emerging research, and nutritional strategies without the fluff. This isn't about theoretical deep dives; it's about what you can apply right now. The conversations are candid and geared toward professionals who need to stay current but are pressed for time. Tuning into this science-focused podcast means gaining a regular dose of peer-level insight, transforming a short commute or break into a genuine professional development session. It’s built for those who believe expertise should be accessible and efficient, providing a consistent stream of knowledge to help refine your approach and decision-making in swine nutrition.
Author: Language: en-us Episodes: 100

The Swine Nutrition Blackbelt Podcast
Podcast Episodes
Dr. Panagiotis Tassis: Mycotoxins in Swine | Ep. 140 [not-audio_url] [/not-audio_url]

Duration: 15:06
In this episode of The Swine Nutrition Blackbelt Podcast, Dr. Panagiotis Tassis from Aristotle University of Thessaloniki sheds light on the crucial issue of mycotoxins and their impact on swine production. Dr. Tassis ta…
Hannah Miller: Corn Co-Products in Swine Diets | Ep. 139 [not-audio_url] [/not-audio_url]

Duration: 10:54
In this episode of The Swine Nutrition Blackbelt Podcast, Hannah Miller, a PhD student from the University of Missouri, shares her research on the impact of various corn co-products on swine nutrition. She discusses topi…
Ron Aldwin Navales: Nutrient & Feed Utilization | Ep. 138 [not-audio_url] [/not-audio_url]

Duration: 10:00
In this episode of The Swine Nutrition Blackbelt Podcast, Ron Aldwin Navales, a PhD student at Kansas State University, explores the critical aspects of nutrient utilization within the pork ecosystem. The discussion high…
Dr. Cesar Garbossa: Optimizing Sow Farrowing | Ep. 137 [not-audio_url] [/not-audio_url]

Duration: 11:06
In this episode of The Swine Nutrition Blackbelt Podcast, Dr. Cesar Garbossa, from the University of Sao Paulo in Brazil, discusses the critical role of sow farrowing kinetics. Dr. Garbossa explains how optimizing blood…
Dr. Roman Moreno: Feed and Energy Intake | Ep. 136 [not-audio_url] [/not-audio_url]

Duration: 13:50
In this episode of The Swine Nutrition Blackbelt Podcast, Dr. Roman Moreno from Seaboard Foods shares valuable insights on the importance of energy intake in swine diets. He highlights the connection between feed intake…
Dr. Lee Johnston: Hybrid Rye in Organic Pork | Ep. 135 [not-audio_url] [/not-audio_url]

Duration: 12:46
In this episode of The Swine Nutrition Blackbelt Podcast, Dr. Lee Johnston, a professor of animal science at the University of Minnesota, explores the challenges and opportunities in organic pork production. He shares hi…
Dr. Cara Cargo-Froom: In Vitro Digestion Models | Ep. 134 [not-audio_url] [/not-audio_url]

Duration: 12:34
In this episode of The Swine Nutrition Blackbelt Podcast, Dr. Cara Cargo-Froom, a postdoctoral researcher at the University of Guelph, explores the application of in vitro digestion models in swine nutrition research. Sh…
Dr. Ayodeji Aderibigbe: Optimizing Fiber in Swine Diets | Ep. 133 [not-audio_url] [/not-audio_url]

Duration: 11:31
In this episode of The Swine Nutrition Blackbelt Podcast, Dr. Ayodeji Aderibigbe, an assistant professor at Florida A&M University, discusses the importance of dietary fiber utilization in swine nutrition. Dr. Aderibigbe…
Dr. Young Dal Jang: High-Dose Probiotics in Nursery Pigs | Ep. 132 [not-audio_url] [/not-audio_url]

Duration: 13:03
In this episode of The Swine Nutrition Blackbelt Podcast, Dr. Young Dal Jang from the University of Georgia explores the effects of high-dose probiotics on nursery pigs. Dr. Jang discusses his research on the optimal lev…
Katlyn McClellan: Anemia in Sows | 130 [not-audio_url] [/not-audio_url]

Duration: 12:13
In this episode of The Swine Nutrition Blackbelt Podcast, Katlyn McClellan, a PhD student at South Dakota State University, discusses sow anemia. McClellan explains how hemoglobin levels can serve as a biomarker for iden…