Calf and Beef Research Facility Calf and Beef Research Facility

Centro di Ricerca Vitelli e Bovini da Carne

Il Centro di Ricerca Vitelli e Bovini da Carne si trova a Boxmeer, nei Paesi Bassi, vicino al nostro Centro di Ricerca Suini. Questa struttura consente di simulare la diversità globali degli allevamenti di vitelli e bovini in tutto il mondo in termini di clima, razza, temperatura, umidità e condizioni abitative.

Storia del Centro di Ricerca

La costruzione della struttura è iniziata nel 2014 ed è stata ufficialmente inaugurata nell'aprile 2016 da Knut Nesse, ex CEO di Nutreco, e Louise Fresco, presidente dell'Università di Wageningen. All'evento hanno partecipato colleghi, partner industriali e accademici provenienti da oltre 40 paesi.

Attrezzature all'avanguardia

La struttura ci consente di alloggiare i vitelli in unità individuali che simulano un allevamento di 1.000 vacche o in unità di stabulazione di gruppo. In entrambe le aree, possiamo controllare completamente l'ambiente per simulare le diverse condizioni degli allevamenti di tutto il mondo. La struttura è dotata di stazioni di alimentazione elettroniche e di surrogati per vitelli, che ci consentono di monitorare e misurare  continuamente alimentazione, latte e assunzione di acqua, e di studiare i modelli di assunzione. La struttura rende inoltre possibile la pesatura automatica e la raccolta dei campioni.

Nell'allevamento di gruppo siamo in grado di ospitare diverse razze in ambiente controllato. Tutti i recinti dispongono di stazioni di alimentazione elettroniche di foraggio, concentrati e minerali per misurare l'assunzione e i modelli di assunzione. Inoltre, esistono unità metaboliche per monitorare la salute degli animali.

Innovazione in Trouw Nutrition

Storia correlate

Targeting the Hindgut to Improve Health and Performance in Cattle

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.
da M. V. Sanz-Fernandez su 05/10/2020
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Tonicity of oral rehydration solutions affects water, mineral and acid–base balance in calves with naturally occurring diarrhoea

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.
da J. N. Wilms su 03/07/2020
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Urea supplementation in rumen and post-rumen for cattle fed a low-quality tropical forage

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.
da C. V. R. de Oliveira su 24/06/2020
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