Effect of freeze-dried pasture herbage on ileal digestibility of amino acids and fatty acids in chickens

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00027014%3A_____%2F18%3AN0000048" target="_blank" >RIV/00027014:_____/18:N0000048 - isvavai.cz</a>

Výsledek na webu

<a href="https://www.agriculturejournals.cz/web/cjas.htm?type=article&id=114_2017-CJAS" target="_blank" >https://www.agriculturejournals.cz/web/cjas.htm?type=article&id=114_2017-CJAS</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.17221/114/2017-CJAS" target="_blank" >10.17221/114/2017-CJAS</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Effect of freeze-dried pasture herbage on ileal digestibility of amino acids and fatty acids in chickens

Popis výsledku v původním jazyce

The ileal digestibility of amino acids and fatty acids in young chickens fed control diet or experimental diets supplemented with freeze-dried pasture herbage at 20 or 40 g/kg was studied. Control diet contained wheat, maize, and soybean meal. Predominant species in the pasture herbage harvested in May were Lolium perenne, Festuca pratensis, and Trifolium pratense. Freeze-dried pasture herbage contained less protein (169 g/kg) and fat (24 g/kg) and more neutral detergent and acid detergent fibre (340 and 210 g/kg) and tannins (12.38 g/kg) than control diet. Concentrations of amino acids, except phenylalanine and threonine, were lower in pasture herbage than in control feed. In both the control feed and freeze-dried pasture herbage, unsaturated fatty acids occurred in higher proportions than saturated fatty acids. In freeze-dried pasture herbage linolenic acid was the main fatty acid. In chickens fed freeze-dried pasture herbage the ileal digestibility of amino acids and fatty acids decreased in a dose-dependent manner. Freeze-dried pasture herbage at 4% in diet had negative effect (P < 0.05) on the digestibility of amino acids and fatty acids in comparison with control diet. But there was no significant effect of 2% freeze-dried pasture herbage in diet on amino acids digestibility. This suggests that pasture herbage contains anti-nutritional factors that inhibit proteolysis and lipolysis. The effect of pasture herbage on digestibility was variable. In chickens fed diets containing 4% freeze-dried pasture herbage, apparent ileal digestibility of amino acids varied from 0.39 (cysteine) to 0.91 (methionine). Variability in the ileal digestibility of fatty acids was less pronounced (from 0.65 to 0.89).

Název v anglickém jazyce

Effect of freeze-dried pasture herbage on ileal digestibility of amino acids and fatty acids in chickens

Popis výsledku anglicky

The ileal digestibility of amino acids and fatty acids in young chickens fed control diet or experimental diets supplemented with freeze-dried pasture herbage at 20 or 40 g/kg was studied. Control diet contained wheat, maize, and soybean meal. Predominant species in the pasture herbage harvested in May were Lolium perenne, Festuca pratensis, and Trifolium pratense. Freeze-dried pasture herbage contained less protein (169 g/kg) and fat (24 g/kg) and more neutral detergent and acid detergent fibre (340 and 210 g/kg) and tannins (12.38 g/kg) than control diet. Concentrations of amino acids, except phenylalanine and threonine, were lower in pasture herbage than in control feed. In both the control feed and freeze-dried pasture herbage, unsaturated fatty acids occurred in higher proportions than saturated fatty acids. In freeze-dried pasture herbage linolenic acid was the main fatty acid. In chickens fed freeze-dried pasture herbage the ileal digestibility of amino acids and fatty acids decreased in a dose-dependent manner. Freeze-dried pasture herbage at 4% in diet had negative effect (P < 0.05) on the digestibility of amino acids and fatty acids in comparison with control diet. But there was no significant effect of 2% freeze-dried pasture herbage in diet on amino acids digestibility. This suggests that pasture herbage contains anti-nutritional factors that inhibit proteolysis and lipolysis. The effect of pasture herbage on digestibility was variable. In chickens fed diets containing 4% freeze-dried pasture herbage, apparent ileal digestibility of amino acids varied from 0.39 (cysteine) to 0.91 (methionine). Variability in the ileal digestibility of fatty acids was less pronounced (from 0.65 to 0.89).

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

40201 - Animal and dairy science; (Animal biotechnology to be 4.4)

Projekt

<a href="/cs/project/QJ1510192" target="_blank" >QJ1510192: Řešení problematiky vybraných faktorů růstu ve vztahu ke kvalitě masa kuřat, krůt, králíků a nutrií</a><br>

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)<br>I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2018

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Czech Journal of Animal Science

ISSN

1212-1819

e-ISSN

—

Svazek periodika

63

Číslo periodika v rámci svazku

6

Stát vydavatele periodika

CZ - Česká republika

Počet stran výsledku

8

Strana od-do

222-229

Kód UT WoS článku

000433085000003

EID výsledku v databázi Scopus

2-s2.0-85047759707