What question did this study set out to answer?

Develop regression equations to predict excretion of total manure, dry matter, nitrogen, phosphorus, and potassium across various dairy cattle life stages.

October 1, 2005Journal of Dairy ScienceOpen Access

Prediction of Manure and Nutrient Excretion from Dairy Cattle

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Authors

TNT.D. NennichFreeport-McMoRan (United States)JHJ.H. HarrisonUniversity of Minnesota LVLynn VanWieringenWashington State University

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Implication

Secondary analysis demonstrates robust prediction models for manure, nitrogen, phosphorus, and potassium excretion in dairy cattle, highlighting improved farm-level nutrient management.

Key Points

Develop regression equations to predict excretion of total manure, dry matter, nitrogen, phosphorus, and potassium across various dairy cattle life stages.
Compiled and evaluated metabolism study datasets from multiple universities covering calves (≤204 kg), heifers (274–613 kg), nonlactating cows, and lactating cows.
Constructed regression models utilizing dietary nutrient intake, crude protein, neutral detergent fiber, milk yield, and milk fat and protein percentages.
Established regression equations that quantify excretion of total manure, total dry matter, nitrogen, phosphorus, and potassium across all animal groups.
Identified milk production, milk composition, and dietary nutrient intakes as effective predictors to guide farm-scale storage planning and nutrient management.

Cite This Study

Nennich et al. (2005) studied this question.

synapsesocial.com/papers/6a1842c01b114e5976b50fc2 https://doi.org/10.3168/jds.s0022-0302(05)73058-7

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Implication

Secondary analysis demonstrates robust prediction models for manure, nitrogen, phosphorus, and potassium excretion in dairy cattle, highlighting improved farm-level nutrient management.

Prediction of Manure and Nutrient Excretion from Dairy Cattle

Discussion

Member takes

Implication

Key Points

Cite This Study

Prediction of Manure and Nutrient Excretion from Dairy Cattle

Discussion

Member takes

Implication

Key Points

Cite This Study

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