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Reproduction and fertility parameters of dairy cows supplemented with omega-3 fatty acid-rich canola oil

Citation

Otto, JR and Freeman, MJ and Malau-Aduli, BS and Nichols, PD and Lane, PA and Malau-Aduli, AEO, Reproduction and fertility parameters of dairy cows supplemented with omega-3 fatty acid-rich canola oil, Annual Research and Review in Biology, 4, (10) pp. 1611-1636. ISSN 2347-565X (2014) [Refereed Article]


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Copyright Statement

Licensed under Creative Commons Attribution 3.0 Unported (CC BY 3.0) http://creativecommons.org/licenses/by/3.0/

Official URL: http://www.sciencedomain.org/journal-home.php?id=9

DOI: doi:10.9734/ARRB/2014/7689

Abstract

Dietary supplementation of lactating dairy cows with fat has long been used as a management tool to increase the energy density of feeds, improving milk production, reproduction and alleviating the menace of postpartum negative energy balance. In this paper, we show that while attempts have been made to investigate the effects of omega-3 (n-3) polyunsaturated fatty acid (PUFA) on reproduction and fertility parameters the results have been diverse and inconsistent. The effect of n-3 fatty acids on prostaglandin F2α (PGF2α) synthesis are well established, however, little is known about the effect of n-3 PUFA on progesterone, oestrogen, luteinising hormone, follicle stimulating hormone, insulin-like growth factor-1(IGF-1) and fat related genes linked to reproductive performance. There is contrasting evidence linking n-3 PUFA with ovulation, oestrous cycle, PGF2α and progesterone production. In addition, the mechanisms behind the influences of n-3 PUFA on reproductive traits such as, number of services per conception and embryo survival are not well understood. Therefore, this paper reviews the effect of n-3 PUFA on cow reproduction and the causal factors of fertility problems in the dairy industry. It also substantiates the need to establish a better understanding of the interactions between n-3 PUFA and cow fertility, with the aim of ameliorating the progressive subfertility issues emerging in the dairy industry. This review also summarizes the identified knowledge gaps and highlights fruitful directions for future research on high producing dairy cows in pasture-based systems.

Item Details

Item Type:Refereed Article
Keywords:polyunsaturated fatty acid, prostaglandin F2a, progesterone, reproductive traits, fat supplementation
Research Division:Agricultural and Veterinary Sciences
Research Group:Animal Production
Research Field:Animal Reproduction
Objective Division:Animal Production and Animal Primary Products
Objective Group:Livestock Raising
Objective Field:Dairy Cattle
Author:Otto, JR (Mr John Otto)
Author:Freeman, MJ (Mr Mark Freeman)
Author:Malau-Aduli, BS (Dr Bunmi Malau-Aduli)
Author:Lane, PA (Associate Professor Peter Lane)
Author:Malau-Aduli, AEO (Associate Professor Aduli Malau-Aduli)
ID Code:88869
Year Published:2014
Deposited By:Tasmanian Institute of Agriculture
Deposited On:2014-02-19
Last Modified:2016-09-22
Downloads:275 View Download Statistics

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