Überprüfung der Auswirkungen dreieckiger Zitzengummis in runden Becherhülsen auf das Milchabgabeverhalten, Zitzenhautkondition und Neuinfektionsrate in einem automatischen Melksystem
Notice bibliographique
Résumé
Data on teat condition (tissue elasticity, teat shape and colour) and udder health parameters, milk yield and milk withdrawal time was raised in an automatic milking system (AMS) over 5 months. A total of 3400 quarter milk samples was obtained on 13 sampling days. During the 3-phase main trial, quarters were milked alternately using liners with round (R) and triangular (D) bores, so that they were assigned to one of two groups (RDR and RRD). This study intended to measure the impact of triangular liners on teat condition, new infection rate and milking pattern. 1st Udder health was categorized according to IDF recommendations, i.e. on cyto bacteriological findings of quarter foremilk samples. Many quarters harboured Corynebacterium spp., with a growing tendency as the survey progressed. This ample distribution of this pathogen might be associated with a deficient teat disinfection. At the same time, a reduction of infections with CNS was observed. 2nd There were no significant differences between quarters milked with round and triangular liners regarding udder health categorisation. No influences were measured of the liner type on electrical conductivity, somatic cell count and NAGase activity. 3rd During the survey, the amount of normally-secreting quarters increased in both groups (RRD/RDR) and regardless the type of liner used. This pattern may be due to a reduced new infection risk while the lactation progresses. 4th Milk withdrawal time did not differ significantly (p = 0.0787) between liner types. A mean withdrawal time of 3.39 ± 1.39 min was calculated. Liner shape did not affect quarter yield and secretion rate significantly. 5th An amount of moderate callous ring formation at teat ends increasing with DIM (regardless of the liner type, however) is suggestive of a successful teat massage and approaching physiological milking. 6th Teat tissue thickness increased during the survey. Tissue elasticity gains and losses were observed with both liners. 7th New infection remained unaffected by liner type. 8th The milking and teat condition parameters were not changed by the liner shape. However, lactation stage showed significant effects on electrical conductivity, cutometry and secretion rate. 9th Unlike quarter position, liner shape did not affect significantly the milking and teat condition parameters of a reference group of quarters secreting normally throughout the entire trial. With triangular liners, another attempt was made to improve the technical milking conditions for cows. Yet and in comparison to conventional liners, milking pattern, teat skin condition and udder health were neither improved nor deteriorated by using triangular liners. The results of this study show however that special attention must be paid on correct handling and regular replacement of liners. Liner and parlour hygiene goes with saying.
Récupéré en direct depuis OpenAlex et désinversé. Les résumés ne sont pas conservés dans cette base de données : les index inversés représentent 8,6 Go des 9,3 Go de texte de la base, et le serveur dispose de 13 Go libres.
Comment cette classification a été obtenuedéplier
Prédiction machine sur la base complète
Imitation des enseignantsNi prévalence calibrée, ni vérité terrain. Validation humaine à venir. Le volet Gemma est une étiquette directe du modèle pour chaque travail de la base, lue sur la notice réduite au titre. Le volet Codex est un classifieur appris des 10 348 étiquettes directes de Codex et calibré sur les taux pondérés de l'échantillon; les champs sans appui suffisant ne portent aucun appel Codex. Le mode candidate est l'union des deux volets; le consensus est leur intersection. Ces sorties portent le statut machine_predicted_unvalidated et ne sont pas des étiquettes humaines.
Scores du classifieur distillé par catégorie (deux têtes)
| Catégorie | Codex | Gemma |
|---|---|---|
| Métarecherche | 0,001 | 0,001 |
| Méta-épidémiologie (sens strict) | 0,001 | 0,000 |
| Méta-épidémiologie (sens large) | 0,001 | 0,001 |
| Bibliométrie | 0,000 | 0,000 |
| Études des sciences et des technologies | 0,000 | 0,000 |
| Communication savante | 0,000 | 0,000 |
| Science ouverte | 0,000 | 0,000 |
| Intégrité de la recherche | 0,001 | 0,001 |
| Charge utile insuffisante (le modèle a refusé de juger) | 0,001 | 0,000 |
Scores machine (provisoires)
Les deux têtes enseignantes du modèle étudiant, lues sur ce travail. Un score ordonne la base pour la relecture; il n'affirme jamais une catégorie, et le statut de validation accompagne chaque rangée tel quel.
Scores de référence d'un modèle non mature (critères de maturité non atteints, 7 itérations). Un score ordonne; il n'affirme jamais une catégorie.
score_only:v0-immature-baseline · tel quel depuis la passe de notation : score_only signifie que le nombre peut ordonner les travaux, et qu'aucune étiquette de catégorie n'en découleClassification
machine, non validéePrédiction automatique; un appel candidat d’une seule source (Gemma direct ou Codex distillé), pas un consensus.
Le détail, modèle par modèle et score par score, se trouve en fin de page sous « Comment cette classification a été obtenue ».