Unraveling the Relationship between Milk Yield and Quality at the Test Day with Rumination Time Recorded by a PLF Technology
The study aimed to estimate the components of rumination time (RT) variability recorded by a neck collar sensor and the relationship between RT and milk composition. Milk test day (TD) and RT data were collected from 691 cows in three farms. Daily RT data of each animal were averaged for 3, 7, and 1...
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doaj-424d13d3e4164f3697347ca6447010e52021-06-01T01:26:15ZengMDPI AGAnimals2076-26152021-05-01111583158310.3390/ani11061583Unraveling the Relationship between Milk Yield and Quality at the Test Day with Rumination Time Recorded by a PLF TechnologyRosanna Marino0Francesca Petrera1Marisanna Speroni2Teresa Rutigliano3Andrea Galli4Fabio Abeni5Centro di Ricerca Zootecnia e Acquacoltura, Consiglio per la Ricerca in Agricoltura e L’analisi Dell’economia Agraria (CREA), via Lombardo 11, 26900 Lodi, ItalyCentro di Ricerca Zootecnia e Acquacoltura, Consiglio per la Ricerca in Agricoltura e L’analisi Dell’economia Agraria (CREA), via Lombardo 11, 26900 Lodi, ItalyCentro di Ricerca Zootecnia e Acquacoltura, Consiglio per la Ricerca in Agricoltura e L’analisi Dell’economia Agraria (CREA), via Lombardo 11, 26900 Lodi, ItalyCentro di Ricerca Zootecnia e Acquacoltura, Consiglio per la Ricerca in Agricoltura e L’analisi Dell’economia Agraria (CREA), via Lombardo 11, 26900 Lodi, ItalyCentro di Ricerca Zootecnia e Acquacoltura, Consiglio per la Ricerca in Agricoltura e L’analisi Dell’economia Agraria (CREA), via Lombardo 11, 26900 Lodi, ItalyCentro di Ricerca Zootecnia e Acquacoltura, Consiglio per la Ricerca in Agricoltura e L’analisi Dell’economia Agraria (CREA), via Lombardo 11, 26900 Lodi, ItalyThe study aimed to estimate the components of rumination time (RT) variability recorded by a neck collar sensor and the relationship between RT and milk composition. Milk test day (TD) and RT data were collected from 691 cows in three farms. Daily RT data of each animal were averaged for 3, 7, and 10 days preceding the TD date (RT<sub>D</sub>). Variance component analysis of RT<sub>D</sub>, considering the effects of farm, cow, parity, TD date, and lactation phase, showed that a farm, followed by a cow, had major contributions to the total variability. The RT<sub>10</sub> variable best performed on TD milk yield and quality records across models by a multi-model inference approach and was adopted to study its relationship with milk traits, by linear mixed models, through a 3-level stratification: low (LRT<sub>10</sub> ≤ 8 h/day), medium (8 h/day < MRT<sub>10</sub> ≤ 9 h/day), and high (HRT<sub>10</sub> > 9 h/day) RT. Cows with HRT<sub>10</sub> had greater milk, fat, protein, casein, and lactose daily yield, and lower fat, protein, casein contents, and fat to protein ratio compared to MRT<sub>10</sub> and LRT<sub>10</sub>. Higher percentages of saturated fatty acid and lower unsaturated and monounsaturated fatty acid were found in HRT<sub>10</sub>, with respect to LRT<sub>10</sub> and MRT<sub>10</sub> observations.https://www.mdpi.com/2076-2615/11/6/1583precision livestock farmingmilk qualityrumination time |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Rosanna Marino Francesca Petrera Marisanna Speroni Teresa Rutigliano Andrea Galli Fabio Abeni |
spellingShingle |
Rosanna Marino Francesca Petrera Marisanna Speroni Teresa Rutigliano Andrea Galli Fabio Abeni Unraveling the Relationship between Milk Yield and Quality at the Test Day with Rumination Time Recorded by a PLF Technology Animals precision livestock farming milk quality rumination time |
author_facet |
Rosanna Marino Francesca Petrera Marisanna Speroni Teresa Rutigliano Andrea Galli Fabio Abeni |
author_sort |
Rosanna Marino |
title |
Unraveling the Relationship between Milk Yield and Quality at the Test Day with Rumination Time Recorded by a PLF Technology |
title_short |
Unraveling the Relationship between Milk Yield and Quality at the Test Day with Rumination Time Recorded by a PLF Technology |
title_full |
Unraveling the Relationship between Milk Yield and Quality at the Test Day with Rumination Time Recorded by a PLF Technology |
title_fullStr |
Unraveling the Relationship between Milk Yield and Quality at the Test Day with Rumination Time Recorded by a PLF Technology |
title_full_unstemmed |
Unraveling the Relationship between Milk Yield and Quality at the Test Day with Rumination Time Recorded by a PLF Technology |
title_sort |
unraveling the relationship between milk yield and quality at the test day with rumination time recorded by a plf technology |
publisher |
MDPI AG |
series |
Animals |
issn |
2076-2615 |
publishDate |
2021-05-01 |
description |
The study aimed to estimate the components of rumination time (RT) variability recorded by a neck collar sensor and the relationship between RT and milk composition. Milk test day (TD) and RT data were collected from 691 cows in three farms. Daily RT data of each animal were averaged for 3, 7, and 10 days preceding the TD date (RT<sub>D</sub>). Variance component analysis of RT<sub>D</sub>, considering the effects of farm, cow, parity, TD date, and lactation phase, showed that a farm, followed by a cow, had major contributions to the total variability. The RT<sub>10</sub> variable best performed on TD milk yield and quality records across models by a multi-model inference approach and was adopted to study its relationship with milk traits, by linear mixed models, through a 3-level stratification: low (LRT<sub>10</sub> ≤ 8 h/day), medium (8 h/day < MRT<sub>10</sub> ≤ 9 h/day), and high (HRT<sub>10</sub> > 9 h/day) RT. Cows with HRT<sub>10</sub> had greater milk, fat, protein, casein, and lactose daily yield, and lower fat, protein, casein contents, and fat to protein ratio compared to MRT<sub>10</sub> and LRT<sub>10</sub>. Higher percentages of saturated fatty acid and lower unsaturated and monounsaturated fatty acid were found in HRT<sub>10</sub>, with respect to LRT<sub>10</sub> and MRT<sub>10</sub> observations. |
topic |
precision livestock farming milk quality rumination time |
url |
https://www.mdpi.com/2076-2615/11/6/1583 |
work_keys_str_mv |
AT rosannamarino unravelingtherelationshipbetweenmilkyieldandqualityatthetestdaywithruminationtimerecordedbyaplftechnology AT francescapetrera unravelingtherelationshipbetweenmilkyieldandqualityatthetestdaywithruminationtimerecordedbyaplftechnology AT marisannasperoni unravelingtherelationshipbetweenmilkyieldandqualityatthetestdaywithruminationtimerecordedbyaplftechnology AT teresarutigliano unravelingtherelationshipbetweenmilkyieldandqualityatthetestdaywithruminationtimerecordedbyaplftechnology AT andreagalli unravelingtherelationshipbetweenmilkyieldandqualityatthetestdaywithruminationtimerecordedbyaplftechnology AT fabioabeni unravelingtherelationshipbetweenmilkyieldandqualityatthetestdaywithruminationtimerecordedbyaplftechnology |
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