Optimal Parameters to Milk Murciano-Granadina Goats in Mid and Low-Line Milking Parlours

Recent short-term studies on Murciano-Granadina goats have established that the optimal parameters to set up the milking machines are different according to the milk pipes height. Two groups of 52 fresh goats each were employed in 2 different experiments to confirm during an entire lactation period...

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Bibliographic Details
Published in:Animals (Basel) 2023-03, Vol.13 (7), p.1155
Main Authors: Bueso-Ródenas, Joel, Romero, Gema, Roca, Amparo, Moya, Francisco, Alejandro, Manuel, Díaz, José Ramón
Format: Article
Language:English
Subjects:
Animal welfare
Composition
Cortisol
dairy goats
Dairy industry
Economics
Edema
Experiments
Farms
Goats
Lactation
Machinery
Magneto-electric machines
Milk
milk cortisol
Milk production
Milking
milking efficiency
Milking machines
Milking parlours
Pipes
Pulsation
somatic cell count
Technicians
Udder
Vacuum
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Summary:Recent short-term studies on Murciano-Granadina goats have established that the optimal parameters to set up the milking machines are different according to the milk pipes height. Two groups of 52 fresh goats each were employed in 2 different experiments to confirm during an entire lactation period the best combinations of system vacuum pulsation rate and pulsator ratio in low-line and mid-line milking parlours. The experiment performed in the low-line milking parlour included one group milked with 40 KPa vacuum system level, 90 puls/min pulsation rate and 60/40 pulsation and a second group milked with 38 KPa vacuum system level, 90 puls/min pulsation rate and 60/40 pulsation ratio. The experiment carried out in mid-line included one group milked with 40 KPa vacuum system level, 90 puls/min pulsation rate and 60/40 pulsation ratio and a second group milked with 40 KPa vacuum system level, 120 puls/min pulsation rate and 60/40 pulsation ratio. Variables studied included milking efficiency, milk composition, cortisol, SCC and intramammary infections, teat-end oedema after milking and vacuum dynamics during milking. Considering the results of an entire lactation period, it was confirmed that when milking in mid-line, the combination of 40 KPa system vacuum, 90 cycles/min pulsation rate and 60/40 pulsator ratio showed optimal results of the above-mentioned variables. On the other hand, the use of 40 KPa in a low-line system increased the milk cortisol values (0.34 ± 0.1 vs. 0.44 ± 0.1 ng/mL) without any other advantage. Thus, the recommendation is to use a combination of 38 KPa system vacuum, 90 cycles/min pulsation rate and 60/40 pulsator ratio to enhance animal welfare.
ISSN:2076-2615
2076-2615
DOI:10.3390/ani13071155