Production effects of feeding extruded soybean meal to early-lactation dairy cows

M. T. Harper, J. Oh, A. Melgar, K. Nedelkov, S. Räisänen, X. Chen, C. M.M.R. Martins, M. Young, T. L. Ott, D. M. Kniffen, R. A. Fabin, A. N. Hristov

Research output: Contribution to journalArticle

1 Citation (Scopus)

Abstract

The objective of this experiment was to evaluate productive and reproductive effects of replacing solvent-extracted soybean meal (SSBM) with extruded soybean meal (ESBM) in a total mixed ration for early-lactation dairy cows. Thirty-four Holstein cows (12 primiparous and 22 multiparous) were used in a randomized complete block design experiment with 17 cows per treatment. Feeding was ad libitum for 5 to 10% refusals. A fresh-cow diet was fed the first 21 d in milk followed by a lactation diet from 22 to 60 d in milk. Milk and dry matter intake data were collected throughout the experiment, and samples were collected for blood chemistry and amino acid profile, nutrient digestibility, nitrogen utilization, and enteric methane emission using the GreenFeed system (C-Lock Inc., Rapid City, SD). Dry matter intake, milk yield, and feed efficiency were not different between SSBM and ESBM. Energy-corrected milk yield and efficiency were also not different between diets. Diet had no effect on milk composition, except that milk true protein yield was decreased by ESBM. Enteric methane emission, yield, and intensity were not different between SSBM and ESBM. Because of its greater fat content, ESBM triggered expected changes in milk fatty acid (FA) profile: decreased sum of C16, saturated, and odd- and branched-chain FA and increased sum of preformed FA, polyunsaturated, and trans FA. The ESBM diet increased or tended to increase some essential amino acids in plasma. In this study, ESBM did not affect dry matter intake and did not improve lactational performance or onset of ovarian function in early-lactation dairy cows, and it decreased milk protein yield, possibly due to greater unsaturated FA intake compared with SSBM.

Original languageEnglish (US)
Pages (from-to)8999-9016
Number of pages18
JournalJournal of dairy science
Volume102
Issue number10
DOIs
StatePublished - Oct 2019

Fingerprint

early lactation
Soybeans
Lactation
soybean meal
Meals
dairy cows
Milk
Diet
dry matter intake
milk
diet
Fatty Acids
Milk Proteins
Methane
Unsaturated Fatty Acids
cows
methane
milk yield
odd chain fatty acids
Trans Fatty Acids

All Science Journal Classification (ASJC) codes

  • Food Science
  • Animal Science and Zoology
  • Genetics

Cite this

Harper, M. T. ; Oh, J. ; Melgar, A. ; Nedelkov, K. ; Räisänen, S. ; Chen, X. ; Martins, C. M.M.R. ; Young, M. ; Ott, T. L. ; Kniffen, D. M. ; Fabin, R. A. ; Hristov, A. N. / Production effects of feeding extruded soybean meal to early-lactation dairy cows. In: Journal of dairy science. 2019 ; Vol. 102, No. 10. pp. 8999-9016.
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Harper, MT, Oh, J, Melgar, A, Nedelkov, K, Räisänen, S, Chen, X, Martins, CMMR, Young, M, Ott, TL, Kniffen, DM, Fabin, RA & Hristov, AN 2019, 'Production effects of feeding extruded soybean meal to early-lactation dairy cows', Journal of dairy science, vol. 102, no. 10, pp. 8999-9016. https://doi.org/10.3168/jds.2019-16551

Production effects of feeding extruded soybean meal to early-lactation dairy cows. / Harper, M. T.; Oh, J.; Melgar, A.; Nedelkov, K.; Räisänen, S.; Chen, X.; Martins, C. M.M.R.; Young, M.; Ott, T. L.; Kniffen, D. M.; Fabin, R. A.; Hristov, A. N.

In: Journal of dairy science, Vol. 102, No. 10, 10.2019, p. 8999-9016.

Research output: Contribution to journalArticle

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AU - Harper, M. T.

AU - Oh, J.

AU - Melgar, A.

AU - Nedelkov, K.

AU - Räisänen, S.

AU - Chen, X.

AU - Martins, C. M.M.R.

AU - Young, M.

AU - Ott, T. L.

AU - Kniffen, D. M.

AU - Fabin, R. A.

AU - Hristov, A. N.

PY - 2019/10

Y1 - 2019/10

N2 - The objective of this experiment was to evaluate productive and reproductive effects of replacing solvent-extracted soybean meal (SSBM) with extruded soybean meal (ESBM) in a total mixed ration for early-lactation dairy cows. Thirty-four Holstein cows (12 primiparous and 22 multiparous) were used in a randomized complete block design experiment with 17 cows per treatment. Feeding was ad libitum for 5 to 10% refusals. A fresh-cow diet was fed the first 21 d in milk followed by a lactation diet from 22 to 60 d in milk. Milk and dry matter intake data were collected throughout the experiment, and samples were collected for blood chemistry and amino acid profile, nutrient digestibility, nitrogen utilization, and enteric methane emission using the GreenFeed system (C-Lock Inc., Rapid City, SD). Dry matter intake, milk yield, and feed efficiency were not different between SSBM and ESBM. Energy-corrected milk yield and efficiency were also not different between diets. Diet had no effect on milk composition, except that milk true protein yield was decreased by ESBM. Enteric methane emission, yield, and intensity were not different between SSBM and ESBM. Because of its greater fat content, ESBM triggered expected changes in milk fatty acid (FA) profile: decreased sum of C16, saturated, and odd- and branched-chain FA and increased sum of preformed FA, polyunsaturated, and trans FA. The ESBM diet increased or tended to increase some essential amino acids in plasma. In this study, ESBM did not affect dry matter intake and did not improve lactational performance or onset of ovarian function in early-lactation dairy cows, and it decreased milk protein yield, possibly due to greater unsaturated FA intake compared with SSBM.

AB - The objective of this experiment was to evaluate productive and reproductive effects of replacing solvent-extracted soybean meal (SSBM) with extruded soybean meal (ESBM) in a total mixed ration for early-lactation dairy cows. Thirty-four Holstein cows (12 primiparous and 22 multiparous) were used in a randomized complete block design experiment with 17 cows per treatment. Feeding was ad libitum for 5 to 10% refusals. A fresh-cow diet was fed the first 21 d in milk followed by a lactation diet from 22 to 60 d in milk. Milk and dry matter intake data were collected throughout the experiment, and samples were collected for blood chemistry and amino acid profile, nutrient digestibility, nitrogen utilization, and enteric methane emission using the GreenFeed system (C-Lock Inc., Rapid City, SD). Dry matter intake, milk yield, and feed efficiency were not different between SSBM and ESBM. Energy-corrected milk yield and efficiency were also not different between diets. Diet had no effect on milk composition, except that milk true protein yield was decreased by ESBM. Enteric methane emission, yield, and intensity were not different between SSBM and ESBM. Because of its greater fat content, ESBM triggered expected changes in milk fatty acid (FA) profile: decreased sum of C16, saturated, and odd- and branched-chain FA and increased sum of preformed FA, polyunsaturated, and trans FA. The ESBM diet increased or tended to increase some essential amino acids in plasma. In this study, ESBM did not affect dry matter intake and did not improve lactational performance or onset of ovarian function in early-lactation dairy cows, and it decreased milk protein yield, possibly due to greater unsaturated FA intake compared with SSBM.

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Harper MT, Oh J, Melgar A, Nedelkov K, Räisänen S, Chen X et al. Production effects of feeding extruded soybean meal to early-lactation dairy cows. Journal of dairy science. 2019 Oct;102(10):8999-9016. https://doi.org/10.3168/jds.2019-16551