Dairy Focus PaperCast

In this series, Dr. Phil Cardoso, associate professor in the Department of Animal Sciences at the University of Illinois at Urbana-Champaign, chats with authors about their recent publications in the field of dairy science.

Last refreshed: August 25th, 2025 at 2:54 PM ⓘ

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Episodes

Response of Holstein calves and heifers carrying the SLICK1 allele to heat stress

The SLICK haplotype, originally identified in Senepol cattle, has been introduced into Holsteins. Inheritance of the SLICK1 allele of the prolactin receptor gene improves thermotolerance of lactating Holstein cows under humid heat stress conditions. Dr. Anna Denicol of the University of California-Davis, along with her research group, recently published a study on whether pre- and postweaning Holstein heifers carrying the SLICK1 allele would show physiological responses indicative of higher tole...

Jun 16, 2025•48 min

Effective nutritional strategies to mitigate enteric methane in dairy cattle

Methane is a potent greenhouse gas that traps energy far more efficiently than carbon dioxide. Reduction of methane emissions is thus essential to slowing climate change, and livestock are a major source of these emissions. Dr. Phil Cardoso talks with Dr. Alex Hristov of Penn State University about nutritional strategies for mitigating production of methane by dairy cattle. They discuss the effectiveness of several different feed additives at reducing methane emissions and their effects on DMI a...

Jun 16, 2025•1 hr 5 min

Sodium butyrate and monensin supplementation to postweaning heifer diets

Dr. Phil Cardoso talks with Dr. Peter Erickson and Tess Stahl of the University of New Hampshire about the effects of feeding diets containing supplementary sodium butyrate and monensin on growth performance, nutrient digestibility, and health in postweaned heifers. Links to papers mentioned in this episode Stahl TC, Hatungimana E, Klanderman KD, Moreland SC, Erickson PS. 2020. Sodium butyrate and monensin supplementation to postweaning heifer diets: Effects on growth performance, nutrient diges...

Jun 16, 2025•1 hr 40 min

How prepartum stocking density and blinds affect calving in Holstein cows

Dr. Phil Cardoso talks with Dr. Kate Creutzinger of the University of Guelph and Dr. Katy Proudfoot of the University of Prince Edward Island about the effects of prepartum stocking density and a blind on physiological biomarkers, health, and hygiene of transition Holstein dairy cows. Links to papers mentioned in this episode Creutzinger et al. 2020, Effects of prepartum stocking density and a blind on physiological biomarkers, health, and hygiene of transition Holstein dairy cows. DOI: 10.3168/...

Jun 16, 2025•1 hr 6 min

Palmitic to oleic acid ratio and its effect on milk production

Dr. Phil Cardoso and Dr. Adam Lock of Michigan State University discuss Dr. Lock’s recent study on the effect of supplementing two major fatty acids, palmitic and oleic acid, in different ratios on milk production in high-, medium- and low-producing cows. Links to papers mentioned in this episode Western et al. 2020, Milk production responses to altering the dietary ratio of palmitic and oleic acids varies with production level in dairy cows. DOI: https://doi.org/10.3168/jds.2020-18936 https://p...

Jun 16, 2025•44 min

Comparison of diet strategies for multiparous and primiparous cows

Dr. Phil Cardoso and Dr. Jim Drackley of the University of Illinois and Dr. Bruce Richards of Delaware Valley University discuss their recent paper comparing prepartum low-energy or high-energy diets with a 2-diet far-off and close-up strategy for multiparous and primiparous cows. Links to papers mentioned in this episode Richards et al. 2020, Comparison of prepartum low-energy or high-energy diets with a 2-diet far-off and close-up strategy for multiparous and primiparous cows. DOI: 10.3168/jds...

Jun 16, 2025•37 min

Effects of oscillating dietary crude protein concentrations fed to lactating dairy cows

Dr. Bill Weiss and Alex Tebbe of the Department of Animal Sciences at The Ohio State University join Dr. Phil Cardoso of the University of Illinois to discuss their recent paper about the effects of oscillating dietary crude protein concentrations on production, nutrient digestion, plasma metabolites, and body composition in lactating dairy cows. Links to papers mentioned in this episode Tebbe and Weiss 2020, Effects of oscillating dietary crude protein concentrations on production, nutrient dig...

Jun 16, 2025•46 min

Metabolic disorders and fertility

Dr. Stephen LeBlanc of the Ontario Veterinary College at the University of Guelph joins Dr. Phil Cardoso of the University of Illinois for a chat about metabolic disorders and fertility. Links to publications mentioned in this episode Dairy Cattle Fertility (FE20) https://hoards.com/article-27434-dairy-cattle-fertility-(fe20).html Book details: 121 pages 8.5 x 11 inches Softcover, perfect bound Full color ISBN 978-0-9960753-3-6 Copyright 2020 Jessica Gordon papers on ketosis: Gordon et al. 2017,...

Jun 16, 2025•34 min

Quantifying protein mobilization in dairy cows during the transition period

Dr. Phil Cardoso of the University of Illinois and Dr. Jackie Boerman of Purdue University discuss a review of published literature reporting protein mobilization measurements and potential methods to quantify protein mobilization that was performed to provide information about the timing and extent of tissue mobilization for dairy cattle. Links to papers mentioned in this episode McCabe and Boerman, Invited Review: Quantifying protein mobilization in dairy cows during the transition period. htt...

Jun 16, 2025•11 min

Nutrition strategies for improved health, production & fertility in the transition period (3/3)

In the last of three episodes that make up the first installment of the Dairy Focus Lab's new "PaperCast" series, Dr. Jim Drackley and Dr. Phil Cardoso of the University of Illinois continue their discussion of a symposium review on nutrition strategies for improved health, production, and fertility during the transition period. Links to papers mentioned in this episode FREE version review until July 02, 2020: Symposium review: Nutrition strategies for improved health, production, and fertility ...

Jun 16, 2025•14 min

Nutrition strategies for improved health, production & fertility in the transition period (2/3)

In the second episode of the Dairy Focus Lab's new "PaperCast" series, Dr. Jim Drackley and Dr. Phil Cardoso of the University of Illinois continue their discussion of a symposium review on nutrition strategies for improved health, production, and fertility during the transition period. Links to papers mentioned in this episode Symposium review: Nutrition strategies for improved health, production, and fertility during the transition period. FREE version until July 02, 2020 (Note: if the link do...

Jun 16, 2025•19 min

Nutrition strategies for improved health, production & fertility in the transition period (1/3)

In the first episode of the Dairy Focus Lab's new "PaperCast" series, Dr. Jim Drackley and Dr. Phil Cardoso of the University of Illinois discuss a symposium review on nutrition strategies for improved health, production, and fertility during the transition period. Links to papers mentioned in this episode Symposium review: Nutrition strategies for improved health, production, and fertility during the transition period. FREE version until July 02, 2020 (Note: if the link doesn't work, try turnin...

Jun 16, 2025•14 min

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