SABIIA - Sistema Aberto e Integrado de Informação em Agricultura (Sabiia)

Naadland, Sondre Stokke; Steinshamn, Håvard; Randby, Åshild T..

Under Norwegian conditions, diets based on primary growth (PG) silage typically increase milk yield compared to silage prepared from the regrowth (RG). Organic PG, dominated by immature grasses, is often high in energy and low in crude protein (CP), whereas the opposite is the case for organic RG harvests, dominated by clover. Here, we tested the hypotheses that increasing proportions of RG will reduce the total supply of metabolizable energy, but increase the CP intake, and that there is a dietary optimal mix of PG and RG to meet requirements for optimal milk production. Sixteen Norwegian Red cows were used in an experiment designed with four balanced 4 × 4 Latin squares with 21-day periods to evaluate the effect of incremental replacement of PG with RG...

Tipo: Journal paper

Palavras-chave: Dairy cattle; Feeding and growth.

Ano: 2017

URL: http://orgprints.org/30594/1/Naadland%20et%20al%202016%20Replacing%20organic%20grass%20clover%20silage%20from%20PG%20with%20RG.pdf

Påvirker høstetid for gras innholdet av gunstige fettsyrer i økologisk melk?

Effekten av høstetid for økologisk eng i Nord-Norge på sammensetning av fettsyrer i melk ble undersøkt i et fôringsforsøk med melkekyr. Tidlig høsting av økologisk eng økte ytelsen og protein% i melk. Normal høstetid ga høyere fett% og en antatt helsemessig gunstigere sammensetning av melkefettet. Dette skyldtes bedre forhold mellom mettet og umettet fett samt mer CLA og transvaccensyre (C18:1t11). Innholdet av alfa-linolensyre (C18:3c9,12,15), og forholdet mellom omega-6 og omega-3 fettsyrer var gunstigst i melk fra tidlig høsta gras.

URL: http://orgprints.org/6420/1/Adler_SLU2005_Pavirker_hostetid_for_gras......_poster.pdf

Palavras-chave: Crop health; Quality; Protection Food security; Food quality and human health Feeding and growth.

Ano: 2005

Tørket eller ensilert bygg til kyr i økologisk landbruk

Ensilert bygg ble sammenlignet med tørket bygg som eneste kraftfôr til melkekyr i økologisk landbruk. Melkeproduksjonen har vært moderat i gruppen med 40% kraftfôr og lav i gruppen med 10% kraftfôr. Både tørking og ensilering konserverte bygget godt, med antydning til mugg på toppen av sekker med det ensilerte. Begge fôrslag hadde omtrent samme virkning på fôropptak og produksjon. Det har vist seg at bygg alene er for lite smakelig når det gis større mengder. Proteininnholdet i bygg var for lavt når det ble gitt som eneste kraftfôr til et surfôr med lavt proteininnhold.

Effect of organic grass-clover silage on fiber digestion in dairy cows

Palavras-chave: Crop health; Quality; Protection Feeding and growth.

Ano: 2005

URL: http://orgprints.org/6422/1/HFM_2005_108.pdf

Naadland, Sondre Stokke; Steinshamn, Håvard; Krizsan, Sophie Julie; Randby, Åshild T..

There are differences in grass-clover proportions and chemical composition between herbage from primary growth (PG) and regrowth (RG) in grass-clover leys. Mixing silages made from PG and RG may provide a more optimal diet to dairy cows than when fed separately. We tested the hypotheses that increasing dietary proportions of grass-clover silage made from RG compared with PG would increase digestion rate of potentially degradable NDF (pdNDF), and increase ruminal accumulation of indigestible NDF (iNDF). Eight rumen cannulated Norwegian Red cows were used in two replicated 4×4 Latin squares with 21-day periods. Silages were prepared from PG and RG of an organically cultivated ley, where PG and RG silages were fed ad libitum in treatments with RG replacing PG...

Tipo: Journal paper

Palavras-chave: Dairy cattle; Feeding and growth.

Ano: 2017

URL: http://orgprints.org/32828/1/Naadland%20et%20al.%20-%202016%20-%20Effect%20of%20organic%20grass-clover%20silage%20on%20fiber%20digestion%20in%20dairy%20cows.pdf

Ulike utviklingstrinn på surfôr til økologisk melkeproduksjon i Nord-Norge

Økologisk eng ble høstet (første slått) når timoteiaksene kunne kjennes i stengelen (S1) og når hele timoteiaks var synlig (S2) og ensilert i rundballer i Bodø i 2004. De to surfôrtypene ble sammenlignet i et kontinuerlig produksjonsforsøk med 32 melkekyr. Før kalving ble dyrene delt inn i 2 grupper med en årlig kraftfôrtildeling tilsvarende henholdsvis 40% (H) og 10% (L) i fôrrasjonen (regnet på energibasis). Første slått ved utviklingstrinn 1 ga lavere avlinger enn ved utviklingstrinn 2 (217 vs. 466 kg TS/daa). Ved bruk av S1 kunne kraftfôrmengden reduseres med over 3 kg TS per dag uten å redusere melkeytelsen nevneverdig sammenlikna med S2 og høy kraftfôrmengde, og samtidig økte proteininnholdet. I den grad reduserte engavlinger ikke er en begrensende...

The effect of preservation method of barley, maturity of grass silage, and type of protein supplementation on sensoric milk quality in organic farming

Palavras-chave: Dairy cattle; Feeding and growth.

Ano: 2007

URL: http://orgprints.org/10567/1/Adler_Randby_utviklingstrinn_HFM07.pdf

Three continuous production experiments and three short term cross over experiments were carried out in Northern Norway to investigate different feeding strategies for dairy cows in organic farming. This paper focuses on the effects on sensoric milk quality. Half of the 32 Norwegian red dairy cows in the production experiments were fed 40% (HC) concentrates (on energy basis per year) and the other half 10% (LC). Twelve cows (HC) participated in the short term cross over experiments. The experimental factors in the continuous production experiments were barley preservation method (P1), grass silage maturity (P2) and type of protein supplement (P3), and in the short term cross over experiments barley preservation method (C1), type of protein supplement (C2)...

Effect of replacing organic grass-clover silage from primary growth with regrowth on N digestion in dairy cows

Palavras-chave: Food security; Food quality and human health Feeding and growth.

Ano: 2006

URL: http://orgprints.org/10571/1/Sensoric_Adler_Randby_Skjervold_2006_short.pdf

Naadland, Sondre Stokke; Steinshamn, Håvard; Krizsan, Sophie Julie; Randby, Åshild T..

Clover proportions, and thereby chemical composition of herbage, differ between primary growth (PG) and regrowth (RG) in organic managed grass-clover fields. The characteristics of PG and RG silages suggest different supplementary feeding strategies to sustain an efficient milk production in dairy cows. Silage made of the RG generally offers more crude protein (CP) in the diet than silage made of the PG because of an increasing proportion of clover later in the season. Additionally, grass and clover have different amino acid (AA) profiles. His has been suggested to be the first limiting AA in grass silage, while Met has been suggested to be the primarily limiting AA in red clover silage. Eight rumen cannulated Norwegian Red cows were used in two replicated...

Tipo: Journal paper

Palavras-chave: Dairy cattle; Animal husbandry; Feeding and growth.

Ano: 2016

URL: http://orgprints.org/30593/1/Naadland%20et%20al%202016%20Replacing%20organic%20grass%20clover%20silage%20from%20PG%20with%20RG%20N%20metabolism.pdf

Øker marine proteintilskudd risikoen for smaksfeil i økologisk melk?

To kortvarige cross over-forsøk ble gjennomført for å vurdere risikoen for smaksfeil ved bruk av marine proteinkilder. I forsøk 1 ble fiskemel, fiskeproteinkonsentrat og erter sammenlignet. Proteinsupplementet ble kombinert med malt korn til isonitrogene og isoenergetiske kraftfôrrasjoner. I forsøk 2 ble ulike tidspunkt for tildeling av fiskemel sammenlikna. Den daglige fiskemelrasjonen ble fordelt på morgen og kveldsmåltid. Morgenmåltidet ble gitt etter melking til alle kyr. Kveldsmåltidet ble gitt henholdsvis 2 timer før, ½ time før, eller etter kveldsmelkingen. Alle kyrne fikk også tilskudd av malt korn. Melka (i forsøk 2 kveldsmelk) ble testet av et smakspanel på 3 dommere. Verken type av marin proteinkilde sammenlignet med erter, eller...

The effect of fishmeal or peameal on milk fatty acid composition in organic farming

Palavras-chave: Dairy cattle; Feeding and growth.

Ano: 2007

URL: http://orgprints.org/10568/1/Adler_Randby_smaksfeil_HFM07.pdf

Feed fatty acid (FA) composition influences the FA composition of cow milk. In a continuous production experiment with 32 Norwegian red dairy cows fishmeal (FM) was compared to peameal (PM) as protein supplement to home-grown cereals and grass silage in organic farming. The protein supplements were together with cereals formulated to be isonitrogeneous and isoenergetic (NEL) and were compared at high (HC) and low concentrate (LC) level. The concentrate rations did not affect the intake of silage. Fishmeal resulted in significantly higher milk yield (kg) with a lower fat concentration (HC) compared to PM. Lower concentrations of urea and FFA were found in milk produced with FM compared to PM. Milk flavour and odour was equal or better when FM rather than PM...

Fiskemel eller erter som proteinkilde til kyr i økologisk melkeproduksjon

Palavras-chave: Food security; Food quality and human health Feeding and growth.

Ano: 2006

URL: http://orgprints.org/10570/1/FA_Adler_Randby_Skjervold_2006_short.pdf

I et kontinuerlig produksjonsforsøk med 32 melkekyr (2005-06) i økologisk landbruk ble kraftfôrrasjoner basert på fiskemel og erter sammenlikna. Ved hjelp av kornblanding (havre og bygg) ble rasjonene balansert til å bli isonitrogene og isoenergetiske. Dyra var, permanent over tre år, fordelt på 2 grupper med en årlig kraftfôrtildeling tilsvarende henholdsvis 40% (H) og 10% (L) av fôrrasjonen (regnet på energibasis). Fiskemel ga høyere melkeytelse enn erter, og minst like god melkesmak. Fettsyresammensetningen i melka var gunstigst når fiskemel ble fôret. Både fiskemel og havre kan ha bidratt til den gunstige sammensetningen av fettsyrer. Både fiskemel og erter er gode proteinfôrmidler for økologisk melkeproduksjon. En kombinasjon av de to proteinkildene...

Effect of barley preservation method on milk production and milk quality in organic farming

Palavras-chave: Dairy cattle; Feeding and growth.

Ano: 2007

URL: http://orgprints.org/10566/1/Adler_Randby_fiskemel_erter_HFM07.pdf

The effect of dried vs. ensiled barley (cv. Arve) on feed intake, milk yield and quality in organic production was tested in two experiments in Northern Norway. In the first experiment, two groups were given either 40% or 10% concentrated feed (barley) per cow and year, calculated on energy basis. Grass silage was fed ad. lib. Both drying and ensiling preserved barley properly and resulted in approximately the same feed intake and milk production. Cows in the group with 10% barley had lower milk protein concentration than cows in the group with 40% barley. The palatability of barley was in general low, and several cows refused parts of their allowances throughout the experiment. The second experiment had a cross over design with three treatments. The...

URL: http://orgprints.org/6426/1/Adler_NJF2005_Effect_of_barley_preservation.._poster.pdf

Palavras-chave: Food security; Food quality and human health Post harvest management and techniques Feeding and growth.

Ano: 2005

Early or Normal Cut Grass Silage for Dairy Cows in Organic Farming

Early cut organic grass silage (roundbales) was compared with silage harvested 17 days (180 daydegrees) later in a continuous production experiment with 32 Norwegian Red dairy cows in early lactation. The experiment was carried out in Bodø, Norway. A half of the cows received a feed ration with 40% concentrates (H), and the other half 10% (L) on an annual energy basis. Feeding early cut silage of an organic ley increased feed intake, milk yield and milk protein concentration compared with normal cut. Left-overs of concentrates were a problem in the experiment and ways to improve the palatability of on farm produced cereals have to be developed. Early cut crop yields were only about half of the crop yield at normal cut. Therefore early cut may only be...