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Wyszukujesz frazę "digestibility" wg kryterium: Temat


Wyświetlanie 1-2 z 2
Tytuł:
Effect of precipitation and temperature conditions of Central East Poland on feed value of European maize cultivars cultivated for silage
Autorzy:
Gąsiorowska, B.
Płaza, A.
Rzążewska, E.
Waranica, M.
Powiązania:
https://bibliotekanauki.pl/articles/2083684.pdf
Data publikacji:
2019
Wydawca:
Polska Akademia Nauk. Instytut Agrofizyki PAN
Tematy:
maize
cultivars
harvest date
digestibility of organic matter
digestibility of dry matter
Opis:
The study was conducted in the years 2009-2011, on a private farm. The experiment was set up in the split-plot design, in three replicates. Two experimental factors were analysed: A – time of harvest of maize green forage: I – in the stage of tasseling (75% of the plants in that stage of growth), II – in the stage of milky ripeness of the plants (after three weeks), III – in the stage of waxy ripeness of the plants (after three weeks), and B – cultivars with various lengths of the vegetation period: Pyroxenia, Codimi, Moschus, Alombo, Celive. The following parameters were determined in the collected samples of plant material: content of crude ash, digestibility of organic matter, and digestibility of dry matter. The results obtained permit the conclusion that the precipitation and temperature conditions in the years of the study caused a significant differentiation in the feed value of the green forage of the European maize cultivars. The digestibility of organic matter (OM) and the digestibility of dry matter (DM) of maize green forage were the highest if the harvest was performed in the stage of waxy ripeness of the plants in 2010, a year with the highest precipitation total. The objective of the study was to determine the effect of the harvest date, and of the selection of cultivars from the Common catalogue of varieties of agricultural plant species (CCA), cultivated in relation to the precipitation and temperature conditions, on the feed value of green forage of maize plants.
Źródło:
Acta Agrophysica; 2019, 26, 2; 53-60
1234-4125
Pojawia się w:
Acta Agrophysica
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Feeding value of de-hulled sunflower seed meal for broilers
Autorzy:
Karkelanov, N.
Chobanova, S.
Dimitrova, K.
Whiting, I.M.
Rose, S.P.
Pirgozliev, V.
Powiązania:
https://bibliotekanauki.pl/articles/2083777.pdf
Data publikacji:
2020
Wydawca:
Polska Akademia Nauk. Instytut Agrofizyki PAN
Tematy:
sunflower seed meal
broiler chickens
protein digestibility
metabolizable energy
Opis:
The effects of de-hulled sunflower seed meal (SFM) samples with different crude protein (CP) and non-starch polysaccharide (NSP) content on apparent metabolizable energy (AME), AME metabolizability (EM) and pre-caecal protein digestibility (pcPD) were examined. The birds were fed one of four mash diets. On a per kilogram basis, the basal diet (BD) contained as major ingredients 549.5 g wheat, 150 g soybean meal and 175 g full fat soybean meal as well as 215.4 g crude protein kg–1 and 12.81 MJ AME kg–1. Another three diets containing 200 g kg–1 of each of three experimental SFM samples in place of the BD were also mixed. Each diet was fed to birds in ten pens with two male Ross 308 broilers ranging in age from 8 to 21 days. Dietary AME was determined from excreta collection between days 17 and 21, while AME, EM and pcPD were determined when the birds were 21 days old. The substitutional method was used to determine AME, EM and pcPD in the SFM samples. The SFM samples high in NSP had lower AME (P = 0.001), EM (P < 0.001) and pcPD (P = 0.005). The beneficial effect of carrying out a further de-hulling of SFM seems to be mediated through reduced NSP content and improved energy and protein bioavailability.
Źródło:
Acta Agrophysica; 2020, 27; 31-38
1234-4125
Pojawia się w:
Acta Agrophysica
Dostawca treści:
Biblioteka Nauki
Artykuł
    Wyświetlanie 1-2 z 2

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