Investigation of dairy cow performance in different udder health groups defined based on a combination of somatic cell count and differential somatic cell count

Schwarz, Dániel; Kleinhans, Sonja; Reimann, Gesine; Stückler, Peter; Reith, Franz; Ilves, Kaivo; Pedastsaar, K.; Liu, Yan; Zhang, Zhen; Valdivieso, Miguel; Barreal, María Luisa; Fouz, Ramiro

doi:10.1016/j.prevetmed.2020.105123

Cited by 32 publications

(30 citation statements)

References 28 publications

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“…In addition to milk energy components, milk SCC is a DHI-provided indicator of udder health and milk quality that is widely accepted and used by farms, management and clinical teams, and milk processors [ 38 , 39 , 40 ]. First test milk SCC and SCS were both greater for pHYK cows across lactations.…”

Section: Discussionmentioning

confidence: 99%

Hyperketonemia Predictions Provide an On-Farm Management Tool with Epidemiological Insights

Pralle

Amdall²,

Fourdraine

et al. 2021

Animals

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Prediction of hyperketonemia (HYK), a postpartum metabolic disorder in dairy cows, through use of cow and milk data has allowed for high-throughput detection and monitoring during monthly milk sampling. The objective of this study was to determine associations between predicted HYK (pHYK) and production parameters in a dataset generated from routine milk analysis samples. Data from 240,714 lactations across 335 farms were analyzed with multiple linear regression models to determine HYK status. Data on HYK or disease treatment was not solicited. Consistent with past research, pHYK cows had greater previous lactation dry period length, somatic cell count, and dystocia. Cows identified as pHYK had lower milk yield and protein percent but greater milk fat, specifically greater mixed and preformed fatty acids (FA), and greater somatic cell count (SCC). Differential somatic cell count was greater in second and fourth parity pHYK cows. Culling (60d), days open, and number of artificial inseminations were greater in pHYK cows. Hyperketonemia prevalence decreased linearly in herds with greater rolling herd average milk yield. This research confirms previously identified risk factors and negative outcomes associated with pHYK and highlights novel associations with differential SCC, mixed FA, and preformed FA across farm sizes and production levels.

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Section: Discussionmentioning

confidence: 99%

Hyperketonemia Predictions Provide an On-Farm Management Tool with Epidemiological Insights

Pralle

Amdall²,

Fourdraine

et al. 2021

Animals

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“…Regular SCC observation has been globally recognized as an optimal index for measuring inter-mammary infection and milk quality (52). This parameter along with udder health monitoring programs has been quite advantageous on individual cows as well as the entire herd (53). Current data indicated that cows receiving rumen-protected L-carnitine, i.e., increasing the post-ruminal L-carnitine availability, could be less prone to develop mammary disorders in early lactation period.…”

Section: Productive Performance Of the Animalsmentioning

confidence: 99%

Peripartal Rumen-Protected L-Carnitine Manipulates the Productive and Blood Metabolic Responses in High-Producing Holstein Dairy Cows

Mesgaran

Kargar

Mesgaran³

et al. 2021

Front. Vet. Sci.

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This study aimed to monitor the effect of including rumen-protected L-carnitine (Carneon 20 Rumin-Pro, Kaesler Nutrition GmbH, Cuxhaven, Germany) in the transition diet on the productive and metabolic responses of multiparous high-producing Holstein dairy cows. Thirty-two multiparous cows were allocated in a completely randomized design to receive the same diet plus 60 g fat prill containing 85% palmitic acid (control, n = 16) or 100 g rumen-protected L-carnitine (RLC, n = 16); at 28 days before expected calving until 28 days in milk (DIM). Fat prill was included in the control diet to balance the palmitic acid content of both experimental diets. Milk production over the 28 DIM for the control and RLC groups was 46.5 and 47.7 kg, respectively. Milk fat content tended to increase upon rumen-protected L-carnitine inclusion (p = 0.1). Cows fed rumen-protected L-carnitine had higher fat- and energy-corrected milk compared with the control group. Pre- and post-partum administration of L-carnitine decreased both high- and low-density lipoprotein concentrations in peripheral blood of post-partum cows. The results of this study indicated that the concentration of triglycerides and beta-hydroxybutyrate was not significantly different between the groups, whereas the blood non-esterified fatty acid concentration was markedly decreased in cows supplemented with L-carnitine. Animals in the RLC group had a significant (p < 0.05) lower blood haptoglobin concentration at 7 and 14 DIM than the control. Animals in the RLC group had a lower concentration of blood enzymes than those of the control group. The mRNA abundance of Toll-like receptors 4, cluster of differentiation 14, and myeloid differential protein 2 did not significantly change upon the supplementation of L-carnitine in the transition diet. In summary, the dietary inclusion of RLC improved dairy cow's performance during the early lactation period. Greater production, at least in part, is driven by improved energy utilization efficiency and enhanced metabolic status in animals during the periparturient period.

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“…On the other hand, sub-clinical infection without showing clinical picture remains vague to dairy animals. Increase in milk somatic cell count is typical finding in subclinical mastitis (Schwarz et al 2020). Subclinical mastitis can be diagnosed by culturing of bacteria from milk, but routinely it is not a good test (Hamann 2002 andAkersted et al 2007;.…”

Section: Mastitismentioning

confidence: 99%

Udder Pathophysiology and Public Health

2021

Int J Vet Sci

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Investigation of dairy cow performance in different udder health groups defined based on a combination of somatic cell count and differential somatic cell count

Cited by 32 publications

References 28 publications

Hyperketonemia Predictions Provide an On-Farm Management Tool with Epidemiological Insights

Hyperketonemia Predictions Provide an On-Farm Management Tool with Epidemiological Insights

Peripartal Rumen-Protected L-Carnitine Manipulates the Productive and Blood Metabolic Responses in High-Producing Holstein Dairy Cows

Udder Pathophysiology and Public Health

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