Establishing the Influence of Character, Health and Other Characteristics of the Cow on its Milk Using the Biocrystallisation Method

Hotho, Gerard

doi:10.18756/edn.113.34

Cited by 1 publication

(1 citation statement)

References 6 publications

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“…Not all cows showed a change over time, indicating that the different diets did in some cases not affect the animal-specific emission of the milk. Some sample-specific variation occurred in some cases which could not be explained by the experiment's design, which were supposed to be related to the day time-specific condition of the cow [31] (it is known that variations in milk constituents may occur, despite controlled and constant diet and housing conditions [32,33]-the variation of DL may be related to this circumstance, too). In cases where the data indicated a trend over time, no constant diet effects were observed in the Mw1ye for these cows, so the time trend can be considered to be marginal in relation to diet, but in the Mw1w, the time trend of 11 cows was, at the same time, a diet effect with higher emission for the pure hay diet, thus, the diet effect was biased in this parameter by the time trend.…”

Section: Variation Of Eps Due To Experimental Factors: Intra-individu...mentioning

confidence: 99%

The Importance of Cow-Individual Effects and Diet, Ambient Temperature, and Horn Status on Delayed Luminescence of Milk from Brown Swiss Dairy Cows

Wohlers¹,

Stolz²

2022

Dairy

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To investigate the importance of cow-individual effects and the importance of horn status (horned vs. disbudded), of diet (hay with and without concentrates), and of ambient temperature (10 °C vs. 25 °C) on delayed luminescence (DL) parameters of milk samples, fluorescence excitation spectroscopic (FES) measurements were performed on a total of n = 152 milk samples from 20 cows of a cross-over experiment. Cow-individual variation was investigated in relation to the horn status, diet effects were evaluated by cow in relation to sampling effects, and regression analysis was used to evaluate the importance of the experimental factors on the variation of emission parameters. Variation of short-term emission after yellow excitation (530 to 800 nm) was predominantly related to the individual cow (disbudded cows tended to higher values), and was partly affected by feeding, with higher emission for concentrate-added diets. Short-term emission after white excitation (260 to 850 nm) was most related to ambient temperature, with higher values at warm temperature. Higher emission was observed also in aged (stored) samples or after delayed cooling. The emission after yellow showed to be more robust to handling and ageing of the milk than the emission after white; possible relations to digestive processes of the cow (including the microbiome) are warranted.

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Section: Variation Of Eps Due To Experimental Factors: Intra-individu...mentioning

confidence: 99%

The Importance of Cow-Individual Effects and Diet, Ambient Temperature, and Horn Status on Delayed Luminescence of Milk from Brown Swiss Dairy Cows

Wohlers¹,

Stolz²

2022

Dairy

View full text Add to dashboard Cite

show abstract

Establishing the Influence of Character, Health and Other Characteristics of the Cow on its Milk Using the Biocrystallisation Method

Cited by 1 publication

References 6 publications

The Importance of Cow-Individual Effects and Diet, Ambient Temperature, and Horn Status on Delayed Luminescence of Milk from Brown Swiss Dairy Cows

The Importance of Cow-Individual Effects and Diet, Ambient Temperature, and Horn Status on Delayed Luminescence of Milk from Brown Swiss Dairy Cows

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