Zobrazeno 1 - 10
of 33
pro vyhledávání: '"M.M.D. Castro"'
Publikováno v:
Journal of Dairy Science, Vol 106, Iss 10, Pp 6951-6960 (2023)
ABSTRACT: Studies evaluating the crude protein (CP) supplementation strategies across the year for grazing cattle and its association with the enzymes involved in the urea cycle and muscle and mammary gland developments are scarce. Thus, we aimed to
Externí odkaz:
https://doaj.org/article/c386f799cbbb405681b0170a65263399
Publikováno v:
Journal of Dairy Science, Vol 105, Iss 6, Pp 5097-5108 (2022)
ABSTRACT: Milk fatty acid (FA) profile can be divided into (1) de novo (C4–C14) that are synthesized in the mammary gland; (2) preformed (≥C18) that are absorbed from blood and originate from mobilized adipose tissues or dietary fat; and (3) mixe
Externí odkaz:
https://doaj.org/article/28b9f1497ef643879b03f8ac2aba5c81
Autor:
M.M.D. Castro, R.L. Albino, J.P.P. Rodrigues, A.L.L. Sguizzato, M.M.F. Santos, P.P. Rotta, J.S. Caton, L.E.F.D. Moraes, F.F. Silva, M.I. Marcondes
Publikováno v:
Animal, Vol 14, Iss 9, Pp 1857-1866 (2020)
Nutrient requirements in cattle are dependent on physiological stage, breed and environmental conditions. In Holstein × Gyr crossbred dairy heifers, the lack of data remains a limiting factor for estimating energy and protein requirements. Thus, we
Externí odkaz:
https://doaj.org/article/e4dc0b415c6f440183948a8b6de760e0
Publikováno v:
Journal of dairy science. 105(6)
Milk fatty acid (FA) profile can be divided into (1) de novo (C4-C14) that are synthesized in the mammary gland; (2) preformed (≥C18) that are absorbed from blood and originate from mobilized adipose tissues or dietary fat; and (3) mixed (C16), whi
Akademický článek
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Autor:
Terry E Engle, L. F. Costa e Silva, Polyana Pizzi Rotta, Marcos Inácio Marcondes, A.L. Silva, M.M.D. Castro
Publikováno v:
Journal of Dairy Science. 102:2973-2984
International committees that have published nutrient requirements for dairy cattle have used data from mineral studies conducted in the 1920s to 1970s, and no study has reported data from animals less than 100 kg; therefore, there is a need to updat
Akademický článek
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Akademický článek
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Autor:
Marcos Inácio Marcondes, M.A. Cardoso, Mozart Alves Fonseca, M.M.D. Castro, C.B. Sampaio, Edenio Detmann
Publikováno v:
Animal Feed Science and Technology. 275:114878
The aim was to evaluate the effects of supplementation with nitrogen and nitrogen plus starch in tropical grass hay (TGH) on neutral detergent fiber (NDF) and dry matter (DM) in vitro digestibility, pH, ammoniacal nitrogen (NH3-N), volatile fatty aci
Autor:
T. E. da Silva, M.M.D. Castro, D. Oss, Marcos Inácio Marcondes, Thierry Ribeiro Tomich, Fernanda Samarini Machado, Mariana Magalhães Campos, Luiz Gustavo Ribeiro Pereira
Publikováno v:
LOCUS Repositório Institucional da UFV
Universidade Federal de Viçosa (UFV)
instacron:UFV
Universidade Federal de Viçosa (UFV)
instacron:UFV
The objective of this study was to estimate the energy and protein requirements of crossbred (Holstein × Gyr) growing bulls. Twenty-four 10-mo-old bulls [initial body weight (BW) = 184 ± 23.4 kg] were used in a comparative slaughter trial. Six bull