Jakosc skorup jaj oraz kosci kur niesnych zywionych mieszanka paszowa z udzialem wywaru gorzelnianego

• Autorzy: Swiatkiewicz S , Koreleski J.

Warianty tytułu

EN

Quality of egg shells and bones in laying hens fed a diet containing distillers dried grains with solubles

• Języki publikacji: PL

Abstrakty

EN

The effect of a decreased level of fodder phosphate in the hens diet contained distillers dried grains with solubles (maize - mDDGS or rye - rDDGS) on laying performance, egg shell quality and mechanical parameters of tibia and humerus was studied in the experiment. It was conducted on 60 Lohman Brown hens from 26 to 68-weeks-of-age. Layers were divided into 5 experimental groups, with each of the 12 hens kept in individual cages. In the control group (I) layers were fed a standard cereal-soybean diet, in the experimental groups diets contained 20% mDDGS (groups II and IV) or rDDGS (groups III and V). The content of total phosphorus in mDDGS was 5.43 g • kg⁻¹ and w rDDGS - 4.95 g • kg⁻¹. Assuming that phosphorus availability in DDGS is high (90%), in groups IV and V the level of fodder phosphate in the diets was decreased by about 40% (from 14 g • kg⁻¹ to 9,5 or 10 g • kg⁻¹). Administering diets containing 20% mDDGS had no effect on laying performance or egg shell and bone quality. In the case of diets with 20% rDDGS a worsening of the laying rate and feed conversion were noted. A decrease of fodder phosphate levels in diets containing DDGS had no negative influence on performance, thickness, density and strength of egg shells and strength, elasticity and stiffness of the tibia and humerus. The obtained results indicated a possibility for decrease of fodder phosphate level in diets containing 20% mDDGS.

Słowa kluczowe

PL

wlasciwosci mechaniczne; wywar kukurydziany suszony; kosc udowa; wyniki produkcyjne; zywienie zwierzat; gestosc; wywar zytni suszony; kosc piszczelowa; zuzycie paszy; wytrzymalosc; wywar gorzelniany suszony; kosci; grubosc skorupy; drob; kury nioski; niesnosc; skorupy jaj

• Wydawca: -
• Czasopismo: Medycyna Weterynaryjna
• Rocznik: 2007
• Tom: 63
• Numer: 01
• Opis fizyczny: s.99-103,tab.,bibliogr.

Twórcy

autor

Swiatkiewicz S

• Instytut Zootechniki, ul.Krakowska 1, 32-083 Balice

autor

Koreleski J.

Bibliografia

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