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Short communication: Comparison of a palmitic acid-enriched triglyceride supplement and calcium salts of palm fatty acids supplement on production responses of dairy cows.
J Dairy Sci. 2018 Apr; 101(4):3110-3117.JD

Abstract

The objective of our study was to evaluate the effects of feeding a palmitic acid-enriched triglyceride supplement or a calcium salts of palm fatty acid (FA) supplement on nutrient digestibility and production responses of mid-lactation dairy cows. Fifteen Holstein cows (139 ± 39 d in milk) were randomly assigned to treatment sequence in a 3 × 3 Latin square design. Treatments were a control diet (CON; no fat supplement) and 1.5% of FA added either as a palmitic acid-enriched triglyceride supplement (PA-TG) or as calcium salts of palm FA supplement (Ca-FA). Fat-supplemented treatments did not affect dry matter intake (DMI) compared with CON, but Ca-FA reduced DMI compared with PA-TG. Compared with CON, fat-supplemented treatments increased 18-carbon FA digestibility by 2.0 percentage units but did not affect digestibility of total FA or 16-carbon FA. Compared with Ca-FA, PA-TG reduced total FA digestibility by 8.7 percentage units due to a decrease in 16-carbon FA digestibility (21.7 percentage units). Both fat supplements increased neutral detergent fiber (NDF) digestibility compared with CON (3.90 percentage units), and PA-TG tended to increase NDF digestibility by 1.60 percentage units compared with Ca-FA. Compared with CON, fat-supplemented treatments increased milk yield (1.05 kg/d), 3.5% fat-corrected milk yield (2.20 kg/d), and energy-corrected milk yield (1.80 kg/d). Also, PA-TG increased milk fat yield (50 g/d) and milk energy output (1.0 Mcal/d) and tended to increase milk fat content (0.07 percentage units) and energy-corrected milk yield (1.0 kg/d) compared with Ca-FA. Fat-supplemented treatments reduced the yield of de novo milk FA (23 g/d) and increased the yields of mixed (43 g/d) and preformed (52 g/d) milk FA compared with CON. The PA-TG treatment increased the yield of 16-carbon (66 g/d) milk FA compared with Ca-FA, whereas Ca-FA increased the yield of preformed (60 g/d) milk FA. Fat-supplemented treatments increased intake of net energy for lactation by 1.80 Mcal/d, milk energy output by 1.30 Mcal/d, and energy in body reserves by 0.30 Mcal/d compared with CON. The Ca-FA treatment increased energy allocated to body reserves (0.60 Mcal/d), energy partitioning toward body reserves (1.20 percentage units), and body condition score change (0.06 units), and tended to increase body weight change (0.16 kg/d) and body condition score (0.08 units) compared with PA-TG. In conclusion, feeding a palmitic acid-enriched triglyceride supplement increased milk energy output due to increased yields of milk and milk fat, whereas feeding a calcium salts of palm FA supplement increased FA digestibility and energy partitioned to body reserves.

Authors+Show Affiliations

Department of Animal Science, Michigan State University, East Lansing 48824.Department of Animal Science, Michigan State University, East Lansing 48824. Electronic address: allock@msu.edu.

Pub Type(s)

Journal Article

Language

eng

PubMed ID

29397168

Citation

de Souza, J, and A L. Lock. "Short Communication: Comparison of a Palmitic Acid-enriched Triglyceride Supplement and Calcium Salts of Palm Fatty Acids Supplement On Production Responses of Dairy Cows." Journal of Dairy Science, vol. 101, no. 4, 2018, pp. 3110-3117.
de Souza J, Lock AL. Short communication: Comparison of a palmitic acid-enriched triglyceride supplement and calcium salts of palm fatty acids supplement on production responses of dairy cows. J Dairy Sci. 2018;101(4):3110-3117.
de Souza, J., & Lock, A. L. (2018). Short communication: Comparison of a palmitic acid-enriched triglyceride supplement and calcium salts of palm fatty acids supplement on production responses of dairy cows. Journal of Dairy Science, 101(4), 3110-3117. https://doi.org/10.3168/jds.2017-13560
de Souza J, Lock AL. Short Communication: Comparison of a Palmitic Acid-enriched Triglyceride Supplement and Calcium Salts of Palm Fatty Acids Supplement On Production Responses of Dairy Cows. J Dairy Sci. 2018;101(4):3110-3117. PubMed PMID: 29397168.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Short communication: Comparison of a palmitic acid-enriched triglyceride supplement and calcium salts of palm fatty acids supplement on production responses of dairy cows. AU - de Souza,J, AU - Lock,A L, Y1 - 2018/02/04/ PY - 2017/07/24/received PY - 2017/12/04/accepted PY - 2018/2/6/pubmed PY - 2018/8/28/medline PY - 2018/2/5/entrez KW - calcium salts of palm fatty acid KW - fatty acid KW - palmitic acid KW - production KW - triglyceride SP - 3110 EP - 3117 JF - Journal of dairy science JO - J Dairy Sci VL - 101 IS - 4 N2 - The objective of our study was to evaluate the effects of feeding a palmitic acid-enriched triglyceride supplement or a calcium salts of palm fatty acid (FA) supplement on nutrient digestibility and production responses of mid-lactation dairy cows. Fifteen Holstein cows (139 ± 39 d in milk) were randomly assigned to treatment sequence in a 3 × 3 Latin square design. Treatments were a control diet (CON; no fat supplement) and 1.5% of FA added either as a palmitic acid-enriched triglyceride supplement (PA-TG) or as calcium salts of palm FA supplement (Ca-FA). Fat-supplemented treatments did not affect dry matter intake (DMI) compared with CON, but Ca-FA reduced DMI compared with PA-TG. Compared with CON, fat-supplemented treatments increased 18-carbon FA digestibility by 2.0 percentage units but did not affect digestibility of total FA or 16-carbon FA. Compared with Ca-FA, PA-TG reduced total FA digestibility by 8.7 percentage units due to a decrease in 16-carbon FA digestibility (21.7 percentage units). Both fat supplements increased neutral detergent fiber (NDF) digestibility compared with CON (3.90 percentage units), and PA-TG tended to increase NDF digestibility by 1.60 percentage units compared with Ca-FA. Compared with CON, fat-supplemented treatments increased milk yield (1.05 kg/d), 3.5% fat-corrected milk yield (2.20 kg/d), and energy-corrected milk yield (1.80 kg/d). Also, PA-TG increased milk fat yield (50 g/d) and milk energy output (1.0 Mcal/d) and tended to increase milk fat content (0.07 percentage units) and energy-corrected milk yield (1.0 kg/d) compared with Ca-FA. Fat-supplemented treatments reduced the yield of de novo milk FA (23 g/d) and increased the yields of mixed (43 g/d) and preformed (52 g/d) milk FA compared with CON. The PA-TG treatment increased the yield of 16-carbon (66 g/d) milk FA compared with Ca-FA, whereas Ca-FA increased the yield of preformed (60 g/d) milk FA. Fat-supplemented treatments increased intake of net energy for lactation by 1.80 Mcal/d, milk energy output by 1.30 Mcal/d, and energy in body reserves by 0.30 Mcal/d compared with CON. The Ca-FA treatment increased energy allocated to body reserves (0.60 Mcal/d), energy partitioning toward body reserves (1.20 percentage units), and body condition score change (0.06 units), and tended to increase body weight change (0.16 kg/d) and body condition score (0.08 units) compared with PA-TG. In conclusion, feeding a palmitic acid-enriched triglyceride supplement increased milk energy output due to increased yields of milk and milk fat, whereas feeding a calcium salts of palm FA supplement increased FA digestibility and energy partitioned to body reserves. SN - 1525-3198 UR - https://www.unboundmedicine.com/medline/citation/29397168/Short_communication:_Comparison_of_a_palmitic_acid_enriched_triglyceride_supplement_and_calcium_salts_of_palm_fatty_acids_supplement_on_production_responses_of_dairy_cows_ L2 - https://linkinghub.elsevier.com/retrieve/pii/S0022-0302(18)30068-7 DB - PRIME DP - Unbound Medicine ER -