Importance of OVN

Vitamins play crucial roles in both human and animal nutrition and the new concept of OVN is essential in this modern era of farming.

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Poultry Breeders

Animals selected for breeding purposes require specialized attention, precise management practices and a diet of high nutritional quality...

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Laying Hens

Commercial egg-laying strains have changed a great deal in a few years. Logically, these changes in themselves should call for increased nutritional requirements in general, and in particular, increased vitamin requirements...

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Broilers & Turkeys

Broiler and turkey diets need to be supplemented with vitamins as the primary materials do not contain them in sufficient quantities.

This new book provides a new set of updated guidelines... More >


Most recommendations for vitamins in swine nutrition are based on studies carried out several decades ago. There are several reasons to suggest the need to update the guidelines and these are covered in this chapter focusing on swine nutrition...

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Beef Cattle

Recommendations for vitamin levels in beef herds has been completely reviewed in this chapter, with the purpose of supplying vitamin levels appropriate to this group of animals...

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Dairy Cattle

The increase in productive yield of the dairy cow has revealed a series of production problems which, in recent years, have enabled deficiencies of some vitamins to be identified. This chapter updates best practice.

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A. C. Barroeta²
G. Gonzalez²
J. Sanz¹
R. Cepero Briz¹

¹ Dept. of Animal Production and Food Science Faculty of Veterinary Science. University of Zaragoza, Spain.

² Animal Nutrition and Welfare Service Department of Animal and Food Science Universitat Autònoma de Barcelona. 08193 Bellaterra, Spain

OVN in poultry breeders


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The process of reproduction in birds is a crucial stage with great repercussions for productivity, food quality and economic performance of poultry companies.

The animals selected for breeding purposes require specialized attention, precise management practices, a good state of health and a diet of high nutritional quality which should be strictly controlled.

An adequate and continuous supply of nutrients is necessary for good breeding performance.

In particular vitamins are essential nutrients for the development of the reproductive organs, the maintenance of their functional capacity and the development of zygotes and embryos.

This chapter reviews in detail the optimum vitamin requirements for Poultry Breeders.

Contents: OVN in poultry breeders

Vitamin A and carotenoids
Vitamin D
Vitamin E
Vitamin K
Vitamin B complex water-soluble vitamins
Thiamine (vitamin B1)
Riboflavin (vitamin B2)
Pyridoxine (vitamin B6)
Pantothenic acid
Cyanocobalamin (vitamin B12)
Vitamin C