Zobrazeno 1 - 10
of 198
pro vyhledávání: '"L. El Faro"'
Autor:
K.C. Almeida, A.B. Bignardi, M.E.Z. Mercadante, L. El Faro, J.N.S.G. Cyrillo, A.A. Boligon, R. Carvalheiro, R.J. Pereira, M.L. Santana
Publikováno v:
Animal, Vol 18, Iss 2, Pp 101064- (2024)
In beef cattle, the selection for higher weights at young ages has been questioned with the argument that this criterion may increase the adult weight of cows, resulting in higher costs. Therefore, selection criteria should be employed to increase we
Externí odkaz:
https://doaj.org/article/b178c093af794aa184502c9fbd7b72c4
Publikováno v:
Arquivo Brasileiro de Medicina Veterinária e Zootecnia, Vol 73, Iss 5, Pp 1014-1022 (2021)
ABSTRACT O período de transição em vacas leiteiras aumenta o suprimento de oxigênio aos tecidos e a produção de espécies reativas de oxigênio. Junto com o comprometimento do sistema antioxidante, gera estresse oxidativo, que pode estar ligado
Externí odkaz:
https://doaj.org/article/693b962dc8414620abdd50f78e07ed05
Publikováno v:
Animal, Vol 14, Iss 10, Pp 2014-2022 (2020)
Remarkable increases in the production of dairy animals have negatively impacted their tolerance to heat stress (HS). The evaluation of the effect of HS on milk yield is based on the direct impact of HS on performance. However, in practical terms, HS
Externí odkaz:
https://doaj.org/article/5dcf0cbc2aba46e69ea922e2be03b672
Publikováno v:
Boletim de Indústria Animal, Vol 74, Iss 1, Pp 27-35 (2017)
The objective of this study was to evaluate the 305-day cumulative milk yield (MY305) and the lactation curve trajectory of cows from different genetic groups originating from the crossing of Holstein and Dairy Gyr breeds, daughters of proven and unp
Externí odkaz:
https://doaj.org/article/ef6a93ae4c124bc48ab9c963f77305be
Publikováno v:
Animal, Vol 11, Iss 1, Pp 4-14 (2017)
Tropical and sub-tropical climates are characterized by high temperature and humidity, during at least part of the year. Consequently, heat stress is common in Holstein cattle and productive and reproductive losses are frequent. Our objectives were a
Externí odkaz:
https://doaj.org/article/249cd076fbb74305af897fcb64741ff0
Publikováno v:
Boletim de Indústria Animal, Vol 74, Iss 1 (2017)
O objetivo deste trabalho foi avaliar a produção de leite acumulada até os 305 dias de lactação e o comportamento das curvas de lactação de vacas de diferentes grupos genéticos, oriundas do cruzamento entre as raças Holandesa e Gir leiteiro,
Externí odkaz:
https://doaj.org/article/734d1ec8163247f3a939be1580653732
Publikováno v:
Animal, Vol 6, Iss 1, Pp 31-35 (2012)
Genetic parameters for test-day milk flow (TDMF) of 2175 first lactations of Holstein cows were estimated using multiple-trait and repeatability models. The models included the direct additive genetic effect as a random effect and contemporary group
Externí odkaz:
https://doaj.org/article/e9a1bcd9ec1746658e55a83b8c146720
Autor:
R.R. Aspilcueta Borquis, R.C. Sesana, L. El Faro, V.L. Cardoso, H. Tonhati, L. de Oliveira Seno
Publikováno v:
Italian Journal of Animal Science, Vol 6, Iss 2s, Pp 397-400 (2010)
Genetic parameters for the relation between the traits of milk yield (MY), age at first calving (AFC) and interval between first and second calving (IBFSC) were estimated in milk buffaloes of the Murrah breed. In the study, data of 1578 buffaloes at
Externí odkaz:
https://doaj.org/article/119b6081694c401587c210dbadcd7377
Autor:
H. Tonhati, L.G. Albuquerque, R.R.A. Borquis, L.O. Seno, L. El Faro, A.B. Bignardi, R.C. Sesana
Publikováno v:
Italian Journal of Animal Science, Vol 6, Iss 2s, Pp 364-367 (2010)
The objectives of this study were to estimate (co)variance functions for additive genetic and permanent environmental effects, as well as the genetic parameters for milk yield over multiple parities, using random regressions models (RRM). Records of
Externí odkaz:
https://doaj.org/article/627ec86d90b14beb9320de91f8145e5f
Publikováno v:
Arquivo Brasileiro de Medicina Veterinária e Zootecnia, Vol 56, Iss 3, Pp 370-373 (2004)
Estimou-se a herdabilidade da idade ao primeiro parto (IPP) a partir de quatro conjuntos com diferentes tipos de informação. A primeira estimativa (IPP1) foi realizada com as novilhas (n= 6.222) expostas apenas na estação "normal", ou seja, aos 2
Externí odkaz:
https://doaj.org/article/f1cb4673faee49749947a88d163094ca