RT Journal Article
T1 Impact of Recombinant Bovine Somatotropin on Bovine Milk Composition and Fatty Acidome: A Multidose Longitudinal Study
A1 Barreiro, Rocio
A1 Lamas Freire, Alexandre
A1 Miranda López, José Manuel
A1 Franco Abuín, Carlos Manuel
A1 Cepeda Sáez, Alberto
A1 Regal López, Patricia
K1 milk
K1 bovine
K1 quality
K1 composition
K1 minerals
K1 fatty acid
K1 rbST
K1 somatotropin
AB Somatotropin is a species-specific polypeptide hormone produced in the pituitary gland of vertebrates. When administered exogenously to cattle, it can increase milk yield. However, the trade and administration of recombinant bovine somatotropin (rbST) to farm animals have been banned in the European Union (EU). Aside from food safety issues, very little is known about the effects of this hormone on milk composition and quality. In this work, a wide profile of fatty acids (the so-called fatty acidome) was determined by GC-FID in raw milk collected from control and rbST-treated lactating cows in a multidose longitudinal study. Milk composition (lactose, protein, fat, dry matter), including minerals (Ca, K, Mg, Na, P), was also determined, and milk yield was recorded. A tendency toward a less saturated profile was observed in the milk collected from animals treated with rbST, with higher concentrations of monounsaturated fatty acids. In addition, less calcium and potassium and more lactose and protein content were observed in milk from treated animals than in regular milk. As a result of this multicomponent profiling of milk, a clear impact of somatotropin treatment on milk quality was observed. The obtained results should be particularly interesting for those countries that permit the use of this hormone in dairy production.
PB MDPI
SN 2304-8158
YR 2022
FD 2022-11-02
LK https://hdl.handle.net/10347/43473
UL https://hdl.handle.net/10347/43473
LA eng
NO Barreiro, R.; Lamas, A.; Miranda, J.M.; Franco, C.M.; Cepeda, A.; Regal, P. Impact of Recombinant Bovine Somatotropin on Bovine Milk Composition and Fatty Acidome: A Multidose Longitudinal Study. Foods 2022, 11, 3477. https://doi.org/ 10.3390/foods11213477
DS Minerva
RD 23 abr 2026