| Effect of fat supplementation during transition period on plasma leptin and non-esterified fatty acid concentrations in Holstein cows. | |
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MedLine Citation:
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PMID: 20597887 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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The objective of this experiment was to investigate the effect of fat supplementation during the transition period on pre and postpartum body weight (BW), body condition score (BCS), non-esterified fatty acids (NEFA), glucose and leptin concentrations in Holstein cows. Holstein cows (n = 15) received a low fat diet (LF; 1.61 Mcal net energy for lactation (NEL)/kg of dry matter [DM]), moderate fat diet (MF; 1.68 Mcal NEL/kg DM) or a high fat diet (HF; 1.74 Mcal NEL/kg DM) for 4 weeks prior to calving. All cows were fed similar lactation diets ad libitum (1.74 Mcal NEL/kg DM) for 30 days after calving. Increasing diet energy density during transition period had no effect on prepartum DMI, BCS, BW, glucose and NEFA concentrations (P > 0.05); but leptin concentrations and energy balance (EB) were affected by treatments (P < 0.05). Animals fed HF had less plasma leptin prepartum. After parturition, BW, milk production, milk fat, protein, urea nitrogen and plasma glucose concentrations were affected by prepartum diets (P < 0.05). Fat supplementation prepartum did not affect postpartum NEFA. In conclusion, prepartum fat supplementation decreased leptin concentration prepartum. |
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Authors:
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Ahmad Afzalzadeh; Mohammad Hossein Palizdar; Homayoun Mahmoudzadeh; Amir Niasari-Naslaji |
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Publication Detail:
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Type: Journal Article; Research Support, Non-U.S. Gov't |
Journal Detail:
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Title: Animal science journal = Nihon chikusan Gakkaihō Volume: 81 ISSN: 1740-0929 ISO Abbreviation: Anim. Sci. J. Publication Date: 2010 Jun |
Date Detail:
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Created Date: 2010-07-05 Completed Date: 2010-12-10 Revised Date: - |
Medline Journal Info:
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Nlm Unique ID: 100956805 Medline TA: Anim Sci J Country: Australia |
Other Details:
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Languages: eng Pagination: 309-15 Citation Subset: IM |
Affiliation:
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Department of Animal Science, University of Tehran, Abureihan Pardis, Tehran. |
Export Citation:
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APA/MLA Format Download EndNote Download BibTex |
| MeSH Terms | |
Descriptor/Qualifier:
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Animal Feed Animals Cattle / blood, metabolism* Dietary Fats / metabolism* Fatty Acids, Nonesterified / blood* Female Lactation / metabolism Leptin / blood* Postpartum Period / metabolism |
| Chemical | |
Reg. No./Substance:
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0/Dietary Fats; 0/Fatty Acids, Nonesterified; 0/Leptin |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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