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EFFECTS OF PROTEIN-XANTHOPHYLL (PX) CONCENTRATE OF ALFALFA ADDITIVE TO CRUDE PROTEIN-REDUCED DIETS ON NITROGEN EXCRETION, GROWTH PERFORMANCE AND MEAT QUALITY OF PIGS
Eugeniusz R. GRELA
; Institute of Animal Nutrition, 2Department of Commodity Science and Animal Raw Materials Processing, University of Life Sciences, 20-950 Lublin, Poland
Wioleta SEMENIUK
; Institute of Animal Nutrition, Poland
Mariusz FLOREK
; Department of Commodity Science and Animal Raw Materials Processing, University of Life Sciences, 20-950 Lublin, Poland
Sažetak
The infl uence of protein-xanthophyll (PX) concentrate of alfalfa supplement to crude protein-reduced diets was examined in relation to nitrogen excretion, performance parameters and pig meat quality. The investigations included 60 growers (PL x PLW) x Duroc crossbreeds assigned to 3 groups. The conclusion is that there is a large potential to decrease nitrogen emission to the environment by 10% lowering of dietary crude protein intake along with reduced
animal growth rate and elevated mixture utilization. Inclusion of a protein-xanthophyll concentrate (PX) of alfalfa to the diet is likely to diminish disadvantageous productive parameters arising from limiting of total crude protein level in relation to the requirements of pigs feeding norms [1993]. At the same time, it improves feed nitrogen utilization and reduces noxious odour emissions from a piggery. The components of a protein-xanthophyll concentrate (PX)
contribute to increased liver and kidney weight.
Ključne riječi
fatteners; feeding; protein content; PX from alfalfa; meat; fatty acids
Hrčak ID:
35458
URI
Datum izdavanja:
16.3.2009.
Posjeta: 1.650 *