EurekaMag
+ Translate
+ Most Popular
The pigeon tick (Argas reflexus): its biology, ecology, and epidemiological aspects
Prevalence of hemoglobin abnormalities in Kebili (Tunisian South)
Lipogranuloma: a preventable complication of dacryocystorhinostomy
Value of basal plasma cortisol assays in the assessment of pituitary-adrenal insufficiency
Bees from the Belgian Congo. The acraensis group of Anthophora
Placing gingival retraction cord
Total serum IgE, allergy skin testing, and the radioallergosorbent test for the diagnosis of allergy in asthmatic children
Acariens plumicoles Analgesoidea parasites des oiseaux du Maroc
Injuries of terminal phalanges of the fingers in children
Biology of flowering and nectar production in pear (Pyrus communis)
Das Reliktvorkommen der Aspisviper (Vipera aspis L.) im Schwarzwald
Hydrological modelling of drained blanket peatland
Pathologic morphology and clinical significance of the anomalous origin of the left circumflex coronary artery from the right coronary artery. General review and autopsy analysis of 30 cases
Cyto genetic analyses of lymphocyte cultures after exposure to calcium cyclamate
Axelrodia riesei, a new characoid fish from Upper Rio Meta in Colombia With remarks concerning the genus Axelrodia and description of a similar, sympatric, Hyphessobrycon-species
Favorable evolution of a case of tuberculosis of pancreas under antibiotic action
RIFM fragrance ingredient safety assessment, Valencene, CAS Registry Number 4630-07-3
Parenteral microemulsions: an overview
Temperate pasture: management for grazing and conservation
Evaluation of a new coprocessed compound based on lactose and maize starch for tablet formulation
Thermal expansion and cracking of three confined water-saturated igneous rocks to 800C
Revision of the genera of the tribe Stigmoderini (Coleoptera: Buprestidae) a discussion of phylogenetic relationships
Anal tuberculosis. Report of a case
Gastric tuberculosis in the past and present
Adaptive responses of the cardiovascular system to prolonged spaceflight conditions: assessment with Holter monitoring

Are farmer assessed temperament, milking speed, and leakage genetically the same traits in automatic milking systems and traditional milking systems?


Are farmer assessed temperament, milking speed, and leakage genetically the same traits in automatic milking systems and traditional milking systems?



Journal of Dairy Science 103(4): 3325-3333



ISSN/ISBN: 0022-0302

PMID: 32089305

The aim was to investigate whether subjectively scored milking speed, temperament, and leakage are genetically the same trait when measured in different milking systems. Data were provided by the Norwegian Dairy Herd Recording System and included a total of 260,731 first-parity Norwegian Red cows calving between January 2009 and February 2019 and milked either in a traditional milking system (milking parlor or pipeline) or by an automatic milking system (AMS). Genetic parameters were estimated and lower heritabilities and less genetic variation were found for the 3 traits when measured in AMS herds. The heritability of temperament, leakage, and milking speed were 0.05, 0.04, and 0.22, respectively, with data from AMS herds; and 0.09, 0.14, and 0.27, respectively, with data from cows milked in traditional milking systems. The genetic correlations between temperament and leakage (-0.19), between milking speed and leakage (-0.88), and between milking speed and temperament (0.30) in AMS were slightly stronger than between the corresponding traits assessed in other milking systems (-0.15, -0.82, and 0.16, respectively). The genetic correlations between traits across milking systems were strong: 0.98, 0.96, and 0.86 for milking speed, leakage, and temperament, respectively. Strong correlations indicate that the traits were almost genetically similar despite being scored in different milking systems. The rank correlations among estimated sire breeding values were strong: 0.98 and 0.99 for milking speed and leakage, with little or no reranking of bull performance across milking systems. Temperament had the lowest genetic correlation (0.86) and rank correlation (0.91) across milking systems. These data suggest that AMS farmers evaluate temperament slightly differently from farmers using other milking systems or that different aspects of temperament are important for farmers with AMS.

Please choose payment method:






(PDF emailed within 1 workday: $29.90)

Accession: 069842320

Download citation: RISBibTeXText

Related references

Modelling of time requirements and milking capacity in automatic milking systems with one or two milking stalls. Robotic milking: Proceedings of the International Symposium held in Lelystad, The Netherlands, 17-19 August 2000: 32-37, 2000

The association between fetching for milking and dairy cows' behaviour at milking, and avoidance of human approach - an on-farm study in herds with automatic milking systems. Livestock Science 101(1/3): 219-227, 2006

Supplementary feeding at milking and minimum milking interval effects on cow traffic and milking performance in a pasture-based automatic milking system. Journal of dairy research 74(4): 492-499, 2007

Demographics, farm and reproductive management strategies used in Australian automatic milking systems compared with regionally proximal conventional milking systems. Australian Veterinary Journal 95(9): 325-332, 2017

Adaptability of teat cups to different udder forms in automatic milking systems and conventional milking systems. Precision livestock farming ' 05: 165-172, 2005

Genetic analyses of novel temperament and milkability traits in Norwegian Red cattle based on data from automatic milking systems. Journal of Dairy Science 102(9): 8221-8233, 2019

Comparison of the milk production technology at the farms with the different milking of the cows: in the stalls, milking parlours and voluntary milking systems (robots). Journal of Dairy and Beef Cattle Breeding 2013(4): 1-5, 2013

Method of automatically milking animals and a fully automatic milking machine provided with a milking robot, said milking machine being suitable for performing same. Official Gazette of the United States Patent and Trademark Office Patents 1257(2), 2002

Quality of milking and damage of milk in pipeline milking systems of machine milking. Zbornik Biotehniske fakultete univerze Edvarda Kardelja v Ljubljani: Kmetijstvo = Research reports Biotechnical Faculty University Edvarda Kardelj of Ljubljana: Agricultural issue: 2) 203-226, 1988

Milking equipment: types and systems, milking routines, and consequences of milking methods. 1as Jornadas Tecnicas de Ganado Ovino de La Rioja patrocinadas y organizadas por Excelentisima Diputacion Provincial Agencia de Desarrollo Ganadero: 149, 1982

Milking frequency management in pasture-based automatic milking systems: A review. Livestock Science 159: 102-116, 2014

The relationship between milking interval and somatic cell count in automatic milking systems. Journal of Dairy Science 94(9): 4531-4537, 2011

Automatic milking systems. 2. Biological, physiological and hygienic aspects of robotic milking. Tejgazdasag 61(2): 35-38, 2001

Code of Good Hygienic Practices for milking with automatic milking systems. Bulletin of the International Dairy Federation 386: 44-49, 2004

Automatic milking systems. 1. The technical and technological aspects of robotic milking. Tejgazdasag 61(2): 32-34, 2001