Zobrazeno 1 - 10
of 107
pro vyhledávání: '"R.L.A. Cerri"'
Autor:
J. Denis-Robichaud, A.P. Oliveira, A. Sica, S. Soriano, R.L. Araújo, M.H.C. Pereira, K.G. Pohler, R.L.A. Cerri, J.L.M. Vasconcelos
Publikováno v:
Journal of Dairy Science, Vol 107, Iss 10, Pp 8582-8591 (2024)
ABSTRACT: In this study, the main objective was to assess if long luteal phases could have causes other than pregnancy loss. We enrolled Holstein dairy cows ≥50 DIM from a commercial herd in Brazil from October 2016 to August 2017. All cows receive
Externí odkaz:
https://doaj.org/article/390ea63f2f3f4f988b59494bec39d4f8
Autor:
S. Borchardt, T.A. Burnett, W. Heuwieser, J.L. Plenio, R.S. Conceição, R.L.A. Cerri, A.M.L. Madureira
Publikováno v:
JDS Communications, Vol 5, Iss 3, Pp 225-229 (2024)
The objective of this observational study was to evaluate the efficacy of a neck-mounted automated activity monitor (AAM) at detecting early postpartum resumed ovarian cyclicity. A total of 192 lactating cows (primiparous = 73 and multiparous = 119)
Externí odkaz:
https://doaj.org/article/6a5c7b73e1084de1a32f89ef657dc8f8
Publikováno v:
Journal of Dairy Science, Vol 107, Iss 3, Pp 1592-1602 (2024)
ABSTRACT: The objective of this observational study was to evaluate estrous expression at the first estrus occurring between 7 to 30 d in milk (DIM), as detected by an automated activity monitor (AAM), and its association with genomic daughter pregna
Externí odkaz:
https://doaj.org/article/cb2797a85c2c472aa0ebd27c142fb3e4
Publikováno v:
JDS Communications, Vol 5, Iss 1, Pp 67-71 (2024)
The aim of this study was to validate the pedometer AfiAct II (AfiMilk) for the measurement of steps in lactating Holstein cows housed in a freestall design by assessing its agreement with visual observation of step counts. A total of 41 primiparous
Externí odkaz:
https://doaj.org/article/e93eec103622468ba8f4072b73c42532
Autor:
J.C.S. Marques, J.P.O. Maciel, J. Denis-Robichaud, R.S. Conceicao, A.M. Bega, S. Moore, M.A. Sirard, C.F. Baes, R.L.A. Cerri
Publikováno v:
Journal of Dairy Science, Vol 106, Iss 12, Pp 9677-9690 (2023)
ABSTRACT: The aim of this study was to evaluate the effect of different progesterone (P4) concentrations during the follicular growth on the intensity of estrous expression, ovarian response to the superovulatory treatment, and embryo production and
Externí odkaz:
https://doaj.org/article/bd68c0a0e0ad4c2d87fb67ee9eaa0fa3
Publikováno v:
Journal of Dairy Science, Vol 106, Iss 7, Pp 4860-4873 (2023)
ABSTRACT: The objective of this study was to evaluate the effects of the use of intravaginal probiotics prepartum on the incidence risk of metritis postpartum and conception risk after first artificial insemination (AI). A total of 606 Holstein cows
Externí odkaz:
https://doaj.org/article/828219683b7948f790832e3de6e2cdd9
Autor:
M.H.C. Pereira, B.I. Cappellozza, R.L.A. Cerri, C.P. Sanches, Jr., T.G. Guida, L.F.S.P. Barbosa, J.E.P. Santos, J.L.M. Vasconcelos
Publikováno v:
Journal of Dairy Science, Vol 106, Iss 2, Pp 1414-1428 (2023)
ABSTRACT: This study was designed to evaluate whether the utilization of a second PGF2α treatment at the end of an estradiol/progesterone (E2/P4)-based protocol with or without GnRH at the beginning of the protocol would improve pregnancy rates of l
Externí odkaz:
https://doaj.org/article/db910f5be01a45b19212c75abea04196
Publikováno v:
Journal of Dairy Science, Vol 105, Iss 10, Pp 8523-8534 (2022)
ABSTRACT: The objectives of this retrospective observational study were to determine the associations of anogenital distance (AGD) with (a) postpartum estrous activity, (b) diameter of the preovulatory follicle, (c) intensity of estrous expression, (
Externí odkaz:
https://doaj.org/article/ccb367883b9d43c683537be767cc9bce
Publikováno v:
Journal of Dairy Science, Vol 105, Iss 6, Pp 5534-5543 (2022)
ABSTRACT: The objective of this observational study was to evaluate the relationship between genomic daughter pregnancy rate (GDPR) with reproduction parameters such as pregnancy at first artificial insemination (AI), pregnancy per AI, and pregnancy
Externí odkaz:
https://doaj.org/article/0d04320bb0bb40d983ee4b7a465aec34
Autor:
A.M.L. Madureira, T.A. Burnett, J.C.S. Marques, A.L. Moore, S. Borchardt, W. Heuwieser, T.G. Guida, J.L.M. Vasconcelos, C.F. Baes, R.L.A. Cerri
Publikováno v:
Journal of Dairy Science, Vol 105, Iss 1, Pp 877-888 (2022)
ABSTRACT: The aim of this study was to determine the association between occurrence and intensity of estrous expression with pregnancy success in recipient lactating dairy cows subjected to embryo transfer (ET). Two observational studies were conduct
Externí odkaz:
https://doaj.org/article/75f198ef25574f3daeff271800f41636