Premilking Teat Preparation for Australian Pasture-Based Cows Milked by an Automated Milking System

Davis, Kendra L; Fulkerson, WJ; García, S. C.; Dickeson, D. A.; Barchia, I.

doi:10.3168/jds.2007-0641

Cited by 10 publications

(11 citation statements)

References 8 publications

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“…Ainsi, plus on augmente la fréquence de traite, plus le rapport entre l'alimentation et la production est meilleure. Au-delà du bénéfice financier engendré, il convient toutefois de tenir compte du travail supplémentaire engendré pour une décision plus profitable car selon Davis et al (2008), la traite représente environ 50% des activités d'une ferme laitière, ce qui n'est pas négligeable comme charges.…”

Section: Mesures De La Production Et Prélèvements Des éChantillons Deunclassified

Effet de la fréquence de traite sur la production laitière de la vache Zébu Peulh

Sissao¹,

Millogo²,

Ouédraogo³

2017

Int. J. Bio. Chem. Sci

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; Tel (+226)70 22 89 95. RESUME L'amélioration de la productivité laitière par le métissage a eu des résultats limités dans les pays à faible rendement car les métisses résistent peu aux dures conditions climatiques. Des alternatives ont été envisagées sur la vache Zébu la mieux adaptée aux conditions du Sahel. L'objectif de cette étude était de tester l'effet de la fréquence de traite sur la productivité de la vache Zébu Peulh. Vingt-quatre (24) vaches Zébu Peulh, primipares et multipares situées entre le premier et le quatrième mois de lactation ont été réparties dans un dispositif expérimental en Carré Latin afin de tester l'effet de la fréquence de traite sur la production du lait. Les vaches étaient réparties en trois lots de huit (8) La spectroscopie a été utilisée pour déterminer la composition du lait (Farm Milk Analyzer, Miris AB, Suède). Les données ont été analysées au moyen du logiciel R et le test de Student a été utilisé pour faire les comparaisons au seuil de probabilité P < 0,05. Les résultats montrent que quand on comparait la production d'une traite à celle de deux traites, on obtenait une augmentation significative de la production de 60,6% par jour soit +0,71 litre. Il en était de même en comparant la production de lait d'une traite à celle de trois traites. En plus, quand on comparait la production de lait de deux traites à celle de trois traites, l'augmentation était de 84,9% par jour soit +1,47 litres. L'augmentation de la fréquence de traite à deux et trois traites journalière améliore quantitativement la productivité de la vache sans variations notables de la composition du lait. © 2016 International Formulae Group. All rights reserved.Mots clés : Vache Zébu, production, complémentation, augmentation, lait.Effect of milking frequency on Zebu Peulh milk production ABSTRACT Milk productivity through crossbreeding gets limited results in several very low dairy production countries because hard climate conditions are touch for crossbred. Strategies have been developed to increase local Zebu cattle productivity more adapted and well spread in the Sahel Zone of Africa. The aim of the study was to test effect of milking frequency on Zebu cattle production. Twenty four (24) primiparous and multiparous Zebu cattle between first and fourth month of lactation were allocated in Latin Square experimental design in order to test effect of milking frequency on milk production. All cows were assigned in group of eight corresponding to once daily milking (1X), twice daily milking (2X) and three times daily milking (3X). Milking interval was 24 hours, 11-13 hours and 05-6-13 hours for 1X, 2X and 3X respectively. Milk volume was measured and milk samples were collected each week from july to december 2015. Milk samples were run using infra-red spectroscopy (Farm Milk Analyzer, Miris AB, Sweden). All data were M. SISSAO et al. / Int. J. Biol. Chem. Sci. 10(6): 2555-2567, 2016 2556 subjected to R software and the means were compared using student t test at the probability level of P < 0.05. The results show...

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Section: Mesures De La Production Et Prélèvements Des éChantillons Deunclassified

Effet de la fréquence de traite sur la production laitière de la vache Zébu Peulh

Sissao¹,

Millogo²,

Ouédraogo³

2017

Int. J. Bio. Chem. Sci

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“…Reported milking frequencies for experimental and commercial herds range between 1.9 to 3.2 milkings per day (e.g., Rousing et al, 2006;Bach et al, 2007b;Borderas et al, 2008;André et al, 2010). Lower milking frequencies, in the 1.4 to 1.9 milkings per day range, are often seen in systems with 100% grazing or that offer only small amounts of concentrate in the AMS (e.g., Jago et al, 2007;Davis et al, 2008). However, voluntary milking rates of greater than 3 times per day have been documented in studies using primiparous cows (Abeni et al, 2005a;Munksgaard et al, 2011).…”

Section: Voluntary Milking Behaviormentioning

confidence: 99%

Invited review: The impact of automatic milking systems on dairy cow management, behavior, health, and welfare

Jacobs

Siegford

2012

Journal of Dairy Science

245

160

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Over the last 100 yr, the dairy industry has incorporated technology to maximize yield and profit. Pressure to maximize efficiency and lower inputs has resulted in novel approaches to managing and milking dairy herds, including implementation of automatic milking systems (AMS) to reduce labor associated with milking. Although AMS have been used for almost 20 yr in Europe, they have only recently become more popular in North America. Automatic milking systems have the potential to increase milk production by up to 12%, decrease labor by as much as 18%, and simultaneously improve dairy cow welfare by allowing cows to choose when to be milked. However, producers using AMS may not fully realize these anticipated benefits for a variety of reasons. For example, producers may not see a reduction in labor because some cows do not milk voluntarily or because they have not fully or efficiently incorporated the AMS into their management routines. Following the introduction of AMS on the market in the 1990s, research has been conducted examining AMS systems versus conventional parlors focusing primarily on cow health, milk yield, and milk quality, as well as on some of the economic and social factors related to AMS adoption. Additionally, because AMS rely on cows milking themselves voluntarily, research has also been conducted on the behavior of cows in AMS facilities, with particular attention paid to cow traffic around AMS, cow use of AMS, and cows' motivation to enter the milking stall. However, the sometimes contradictory findings resulting from different studies on the same aspect of AMS suggest that differences in management and farm-level variables may be more important to AMS efficiency and milk production than features of the milking system itself. Furthermore, some of the recommendations that have been made regarding AMS facility design and management should be scientifically tested to demonstrate their validity, as not all may work as intended. As updated AMS designs, such as the automatic rotary milking parlor, continue to be introduced to the dairy industry, research must continue to be conducted on AMS to understand the causes and consequences of differences between milking systems as well as the impacts of the different facilities and management systems that surround them on dairy cow behavior, health, and welfare.

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“…Milking speed (MS) measured as the time taken to milk a cow potentially affects the labor cost per cow. Different devices integrated into milking machines [e.g., LactoCorder (Hoefelmayr and Faerber WMB AG, Balgach, Switzerland, 2007), Bou-Matic (Bou-Matic, Madison, WI), or voluntary milking systems (Davis et al, 2008)] provide objective measures of MS, such as average and maximum milk flow rate, and total milking time. Alternatively, MS can be subjectively scored by the farmer.…”

Section: Introductionmentioning

confidence: 99%

Genome-wide association study for milking speed in French Holstein cows

Marete¹,

Sahana²,

Fritz³

et al. 2018

Journal of Dairy Science

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Using a combination of data from the BovineSNP50 BeadChip SNP array (Illumina, San Diego, CA) and a EuroGenomics (Amsterdam, the Netherlands) custom single nucleotide polymorphism (SNP) chip with SNP pre-selected from whole genome sequence data, we carried out an association study of milking speed in 32,491 French Holstein dairy cows. Milking speed was measured by a score given by the farmer. Phenotypes were yield deviations as obtained from the French evaluation system. They were analyzed with a linear mixed model for association studies. We identified SNP on 22 chromosomes significantly associated with milking speed. As clinical mastitis and somatic cell score have an unfavorable genetic correlation with milking speed, we tested whether the most significant SNP on these 22 chromosomes associated with milking speed were also associated with clinical mastitis or somatic cell score. Nine hundred seventy-one genome-wide significant SNP were associated with milking speed. Of these, 86 were associated with clinical mastitis and 198 with somatic cell score. The most significant association signals for milking speed were observed on chromosomes 7, 8, 10, 14, and 18. The most significant signal was located on chromosome 14 (ZFAT gene). Eleven novel milking speed quantitative trait loci (QTL) were observed on chromosomes 7, 10, 11, 14, 18, 25, and 26. Twelve candidate SNP for milking speed mapped directly within genes. Of these, 10 were QTL lead SNP, which mapped within the genes HMHA1, POLR2E, GNB5, KLHL29, ZFAT, KCNB2, CEACAM18, CCL24, and LHPP. Limited pleiotropy was observed between milking speed QTL and clinical mastitis.

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Premilking Teat Preparation for Australian Pasture-Based Cows Milked by an Automated Milking System

Cited by 10 publications

References 8 publications

Effet de la fréquence de traite sur la production laitière de la vache Zébu Peulh

Effet de la fréquence de traite sur la production laitière de la vache Zébu Peulh

Invited review: The impact of automatic milking systems on dairy cow management, behavior, health, and welfare

Genome-wide association study for milking speed in French Holstein cows

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