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Vitamins A, E and fatty acid composition of the eggs of caged hens and pastured hens

  • H.D. Karsten (a1), P.H. Patterson (a2), R. Stout (a3) and G. Crews (a4)
  • DOI: http://dx.doi.org/10.1017/S1742170509990214
  • Published online: 12 January 2010
Abstract
Abstract

In the US farmers often market pastured poultry eggs for a premium price, claiming animal and human health benefits. We examined how moving pastured hens to forage legumes or mixed grasses influenced hen (Gallus gallus L.) egg omega-3 fatty acids and concentrations of vitamins A and E. We also compared the eggs of the pastured hens to those of hens fed a commercial diet in cages. We used a cross-over design to compare pasture species: 75 sister hens were assigned to one of three pasture treatment groups: (1) alfalfa (Medicago sativa L.), (2) red and white clover (Trifolium pretense L. and Trifolium repens L.) or (3) mixed cool season grasses. Groups were rotated to all three pasture treatments, each for 2 weeks and supplemented with 70 g commercial hen mash bird−1 day−1. Pasture botanical composition, forage mass, leaf to total ratio and plant fatty acid composition were compared among pasture treatments. Eggs of the pastured hens were compared to eggs of 50 sister hens that were fed only commercial hen mash in cages for the entire 6 weeks. Forage parameters varied somewhat, but did not explain plant linolenic acid variation. Seventeen of the 18 quantified egg fatty acids, and vitamin A concentrations did not (P<0.05) differ among the three pasture treatment groups. Eggs of the hens that foraged grasses had 23% more (P<0.0001) vitamin E than eggs of hens that foraged clover. Compared to eggs of the caged hens, pastured hens' eggs had twice as much vitamin E and long-chain omega-3 fats, 2.5-fold more total omega-3 fatty acids, and less than half the ratio of omega-6:omega-3 fatty acids (P<0.0001). Vitamin A concentration was 38% higher (P<0.05) in the pastured hens' eggs than in the caged hens' eggs, but total vitamin A per egg did not differ. At the end of the experiment, pastured hens weighed 14% less and averaged 15% lower hen-day egg production than caged birds (P<0.0001). Results suggest that grass pastures may enhance vitamin E in eggs of pastured hens more than clover, and pastured hens supplemented with commercial mash will produce eggs with significantly more vitamin E and total omega-3 fatty acids compared to eggs from caged hens fed only commercial hen mash. Pastured hens may have lower body weight and egg production than caged hens, unless they are supplemented adequately to meet their dietary energy and crude protein needs.

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*Corresponding author: hdk3@psu.edu
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2K.E. Turner , K.E. McClure , W.P. Weiss , R.J. Borton , and J.G. Foster 2002. Alpha-tocopherol (vitamin E) concentrations and case life of lamb muscle as influenced by concentrate or pasture finishing. Journal of Animal Science 80:25132521.

3R.J. Dewhurst , K.J. Shingfield , M.R.F. Lee , and N.D. Scollan 2006. Increasing the concentrations of beneficial polyunsaturated fatty acids in milk produced by dairy cows in high-forage systems. Animal Feed Science and Technology 131:168206.

4P. Nozière , B. Graulet , A. Lucas , B. Martin , P. Grolier , and M. Doreau 2006. Carotenoids for ruminants: From forages to dairy products. Animal Feed Science and Technology 131:418450.

5N. Scollan , J. Hocquette , K. Nuernberg , D. Dannenberger , I. Richardson , and A. Moloney 2006. Innovations in beef production systems that enhance the nutritional and health value of beef lipids and their relationship with meat quality. Meat Science 74:1733.

6E.C. Naber 1979. The effect of nutrition on the composition of eggs. Poultry Science 58:518528.

7M.W. Squires and E.C. Naber 1992. Vitamin profiles of eggs as indicators of nutritional status in the laying hen: vitamin B12 study. Poultry Science 71:20752082.

8E.C. Naber and M.W. Squires 1993. Vitamin profiles of eggs as indicators of nutritional status in the laying hen: diet to egg transfer and commercial flock survey. Poultry Science 72:10461053.

10C.J. Lopez-Bote , R. Sanz Arias , A.I. Rey , A. Castaño , B. Isabel , and J. Thos 1998. Effect of free-range feeding on n-3 fatty acid and α-tocopherol content and oxidative stability of eggs. Animal Feed Science and Technology 72:3340.

13P.S. Sukhija and D.L. Palmquist 1988. Rapid method of determination of total fatty acid content and composition of feedstuffs and feces. Journal of Agriculture and Food Chemistry 36:12021206.

15W.M. Cort , T.S. Vincente , E.H. Waysek , and B.D. Williams 1983. Vitamin E content of feedstuffs determined by high-performance liquid chromatographic fluorescence. Journal of Agriculture and Food Chemistry 31:13301333.

16A.J. Speek , J. Schijver , and W.H.P. Schreurs 1985. Vitamin E composition of some seed oils as determined by high-performance liquid chromatography with fluorometric detection. Journal of Food Science 50:121124.

21N.P. Buchanan , J.M. Holt , L.B. Kimbler , and J.S. Moritz 2007. Nutrient composition and digestibility of organic broiler diets and pasture forages. Journal of Applied Poultry Research 16:1321.

23R. Ayerza and W. Coates 2001. Omega-3 enriched eggs: The influence of dietary α-linolenic fatty acid source on egg production and composition. Canadian Journal of Animal Science 81:355362.

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