Kalve- og oksekødsforskningsfacilitet
Forskningsfaciliteten for Kalve og Kød ligger i Boxmeer, Holland, på samme sted som vores Svineforskningsfacilitet. Dette anlæg gør det muligt at simulere den globale mangfoldighed af kalve- og kvæggårde verden over med hensyn til klima, race, temperatur, luftfugtighed og boligforhold.
Facilitetens historie
Opførelsen af anlægget startede i 2014, og det blev officielt åbnet i april 2016 af Knut Nesse, tidligere administrerende direktør for Nutreco, og Louise Fresco, formand for Wageningen University. Arrangementet blev besøgt af kolleger, branchepartnere og akademikere fra mere end 40 lande.
Topmoderne udstyr
Faciliteten gør det muligt for os at huse kalvene i individuelle enheder, der simulerer en 1.000-kø gård eller i gruppehuse. I begge områder kan vi fuldt ud kontrollere miljøet for at simulere de forskellige forhold på gårde verden over. Faciliteten er udstyret med elektroniske fodringsstationer og stationer til kalvemælkserstatning, som gør det muligt løbende at overvåge målinger som foder-, mælk- og vandindtag samt studere indtagsmønstre. Faciliteten muliggør også automatisk vejning og prøveindsamling.
I den gruppeindhegnede okseenhed kan vi holde forskellige racer i et kontrolleret miljø. Alle indhegninger har elektroniske fodringsstationer til foder, koncentrater og mineraler til at måle indtag og indtagsmønstre. Derudover er der stofskifteenheder til intensivt at overvåge dyrenes sundhed.
Forskningsfacilitet for kalve og oksekød
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Kalve i modtagelsesrummet
Unge Holstein Friesian-malkekalve kommer fra nabopartnergårde eller fra vores mejeriforskningsfacilitet og holdes i et særligt kalvemodtagelsesrum for at minimere sygdomsoverførsel og sikre kalvenes sundhed og sikkerhed.
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Metabolismeenhed
Metabolismeenheden udgør et unikt forskningsområde, hvor kalve eller modne køer kan overvåges nøje i længere tid.
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Individuelt indkvarterede kalve
Denne stald er en simulation af en gård med 1.000 køer, hvor 60 indhegninger placeres til at huse kalve fra fødslen (40 kg) og op til otte uger (100 kg kropsvægt) i et kontrolleret miljø.
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Gruppehusede kalve
I denne afdeling kan miljøet kontrolleres fuldt ud, og kalve kan deles i fire indhegninger med otte til tolv dyr hver (afhængigt af vægt) fra to uger op til 200 kg kropsvægt.
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Mødelokale
Mødelokalet er egnet til grupper på omkring 20 personer og giver et fugleperspektiv over faciliteterne gennem vinduerne i hver afdeling.
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Gruppehus-oksekød
Det kollektive anlæg for kødkvæg har plads til fire folde med 12-18 dyr hver (afhængigt af vægt). Forskellige kødkvægracer, fra 300 kg til 800 kg kropsvægt, kan holdes her i et fuldt kontrolleret miljø.
Innovation ved Trouw Nutrition Kalve- og Oksekødsforskningsfacilitet
Relaterede historier
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An adequate gastrointestinal barrier function is essential to preserve animal health and well-being. Suboptimal gut health results in the translocation of contents from the gastrointestinal lumen across the epithelium, inducing local and systemic inflammatory responses. Inflammation is characterized by high energetic and nutrient requirements, which diverts resources away from production. Further, barrier function defects and inflammation have been both associated with several metabolic diseases in dairy cattle and liver abscesses in feedlots. The gastrointestinal tract is sensitive to several factors intrinsic to the productive cycles of dairy and beef cattle. Among them, high grain diets, commonly fed to support lactation and growth, are potentially detrimental for rumen health due to their increased fermentability, representing the main risk factor for the development of acidosis. Furthermore, the increase in dietary starch associated with such rations frequently results in an increase in the bypass fraction reaching distal sections of the intestine. The effects of high grain diets in the hindgut are comparable to those in the rumen and, thus, hindgut acidosis likely plays a role in grain overload syndrome. However, the relative contribution of the hindgut to this syndrome remains unknown. Nutritional strategies designed to support hindgut health might represent an opportunity to sustain health and performance in bovines.M. V. Sanz-Fernandez -
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Recommendations for composition of oral rehydration solutions (ORS) for calves, particularly concerning Na+, glucose, and their combined effect on tonicity, are not in line with guidelines for humans. Thus, this study aimed to determine the effect of ORS tonicity on water, mineral and acid–base balance. Seventy‐two calves were selected based on the severity of dehydration and blood base excess (BE) on day 0. Five calves that did not develop diarrhoea were removed post‐inclusion from the study. Calves were allocated to blocks of four animals based on blood BE on day 1. Within each block, calves were randomly assigned to one of four treatments: (a) hypotonic ORS with low Na+ and lactose (HYPO); (b) isotonic ORS with low Na+and glucose (ISO); (c) hypertonic ORS with high Na+ and glucose (HYPER); and (d) control consisting of warm water including 5 g/L of whey powder (CON). Treatments were administered twice daily over a 3‐day period, in which calves were offered 2.0 L of treatment at 1300 and 2100 hr. Calves were fed 2.5 L of milk replacer at 0700 and 1630 hr from day 1 to 3 and 3.0 L from day 4 to 5, and had access to water. Calves were monitored for 5 days in which measurements included intakes, BW, blood sampling and collection of faeces on day 1 and urine from day 1 to 3. All ORS treatments maintained normal serum Na+, whereas CON did not. Calves in the HYPER group had lower blood pH and greater faecal Na+ losses than HYPO and ISO. Plasma expansion relative to baseline was higher in low tonicity ORS (+4.8%) when compared with CON (+1.0%). Urine osmolality was 30% higher in HYPER calves. In this experiment, low tonicity ORS were more effective at restoring water, mineral and acid–base balance than the hypertonic ORS.J. N. Wilms -
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We evaluated the differences between the supplementation of urea in rumen and/or abomasum on forage digestion, N metabolism and urea kinetics in cattle fed a low-quality tropical forage. Five Nellore heifers were fitted with rumen and abomasum fistulas and assigned to a Latin square design. The treatments were control, continuous infusion of urea in the abomasum (AC), continuous infusion of urea in the rumen, a pulse dose of urea in the rumen every 12 h (PR) and a combination of PR and AC. The control exhibited the lowest (P < 0·10) faecal and urinary N losses, which were, overall, increased by supplementation. The highest urinary N losses (P < 0·10) were observed when urea was either totally or partially supplied as a ruminal pulse dose. The rumen N balance was negative for the control and when urea was totally supplied in the abomasum. The greatest microbial N production (P < 0·10) was obtained when urea was partially or totally supplied in the abomasum. Urea supplementation increased (P < 0·10) the amount of urea recycled to the gastrointestinal tract and the amount of urea-N returned to the ornithine cycle. The greatest (P < 0·10) amounts of urea-N used for anabolism were observed when urea was totally and continuously infused in the abomasum. The continuous abomasal infusion also resulted in the highest (P < 0·10) assimilation of microbial N from recycling. The continuous releasing of urea throughout day either in the rumen or abomasum is able to improve N accretion in the animal body, despite mechanism responsible for that being different.C. V. R. de Oliveira -
