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Arch. Anim. Breed., 61, 215-220, 2018
https://doi.org/10.5194/aab-61-215-2018
© Author(s) 2018. This work is distributed under
the Creative Commons Attribution 4.0 License.
Original study
13 Jun 2018
Phenotypic analysis of milk coagulation properties and mineral content of Pinzgauer cattle breed
Carmen L. Manuelian1, Mauro Penasa1, Giulio Visentin1,2, Martino Cassandro1, and Massimo De Marchi1 1Department of Agronomy, Food, Natural Resources, Animals and Environment, University of Padova, Legnaro (PD), 35020, Italy
2Associazione Nazionale Allevatori Frisona Italiana (ANAFI), Cremona, 26100, Italy
Abstract. This study aimed to characterize milk coagulation properties (rennet coagulation time, curd-firming time and curd firmness 30 min after rennet addition to milk) and major mineral contents (Ca, Mg, P, K and Na) in Pinzgauer dual-purpose cattle breed. The edited dataset consisted of 7763 milk observations from 851 cows reared in 60 herds in the Alpine area of Bolzano province (Italy). Data were analysed through a linear mixed model which included stage of lactation, parity and their interaction as fixed effects, and cow and herd test date as random effects. Rennet coagulation time, curd-firming time and curd firmness 30 min after rennet addition to milk averaged 22.66 min, 5.53 min and 16.79 mm, respectively. The most abundant minerals were P (1495 mg kg−1) and Ca (1344 mg kg−1), and the least abundant Mg (141 mg kg−1). Compared to their older contemporaries, early-lactating younger animals yielded milk that was more favourable for cheese production (i.e. with shorter coagulation time and stronger curd firmness). Mineral contents were lower in milk of primiparous than multiparous cows, except for Na. Moreover, Ca, Mg, P and Na contents decreased from parturition to peak of lactation and increased thereafter, except for K, which exhibited an opposite trend. Our results showed that Pinzgauer breed produced milk with better coagulation properties and mineral content, from a technological point of view, in first than later parities and in early than late lactation. The characterization of milk coagulation properties and mineral content in autochthonous breeds is important to increase their value and marketability of their products.
Citation: Manuelian, C. L., Penasa, M., Visentin, G., Cassandro, M., and De Marchi, M.: Phenotypic analysis of milk coagulation properties and mineral content of Pinzgauer cattle breed, Arch. Anim. Breed., 61, 215-220, https://doi.org/10.5194/aab-61-215-2018, 2018.
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Short summary
Milk coagulation properties and major mineral contents in Pinzgauer dual-purpose cattle breed were characterized. The dataset consisted of 7763 milk observations from 851 cows reared in 60 herds in the Alpine area of Bolzano province (Italy). Our results showed that Pinzgauer breed produced milk with better coagulation properties and mineral content, from a technological point of view, in first than later parities and in early than late lactation.
Milk coagulation properties and major mineral contents in Pinzgauer dual-purpose cattle breed...
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