Zobrazeno 1 - 10
of 87
pro vyhledávání: '"J.A.A. McArt"'
Autor:
C.R. Seely, J.A.A. McArt
Publikováno v:
Journal of Dairy Science, Vol 107, Iss 7, Pp 4871-4880 (2024)
ABSTRACT: Dyscalcemia, defined as reduced blood Ca at 4 DIM, is associated with reduced milk production and reproduction and an increased risk of negative health events. Cowside testing of blood Ca to diagnose dyscalcemia is difficult, and alternativ
Externí odkaz:
https://doaj.org/article/c539316f14f3493a886a5990c3775ceb
Publikováno v:
JDS Communications, Vol 5, Iss 3, Pp 200-204 (2024)
Delaying oral Ca supplementation might benefit cows with low blood Ca concentrations at 4 d in milk (DIM), a time when reduced blood total Ca (tCa) is associated with negative health and production outcomes. To implement a targeted approach to manage
Externí odkaz:
https://doaj.org/article/739b190ab75f4eb28a0731af19714bc9
Autor:
I.R. Frost, C.R. Seely, H.A. McCray, K.R. Callero, J.A. Seminara, R.M. Martinez, A.M. Reid, C.N. Wilbur, K.J. Koebel, J.A.A. McArt
Publikováno v:
JDS Communications, Vol 5, Iss 3, Pp 215-219 (2024)
Although postpartum Ca supplementation strategies are often employed to prevent subclinical hypocalcemia in dairy cows, these strategies have produced a mix of beneficial, neutral, and detrimental results when assessing milk yield and subsequent dise
Externí odkaz:
https://doaj.org/article/63274bfafea8412ba43b4b921da52ed0
Publikováno v:
Journal of Dairy Science, Vol 107, Iss 3, Pp 1620-1629 (2024)
ABSTRACT: Supplementation of oral Ca via blanket administration of an oral Ca bolus at 0 and 24 h after calving has shown limited success in increasing production and minimizing adverse health events. Recent evidence that reductions in blood Ca at 4
Externí odkaz:
https://doaj.org/article/ad3a681b71f949f6a1c9b1b56d95ff7c
Autor:
C.R. Seely, J.A.A. McArt
Publikováno v:
Journal of Dairy Science, Vol 106, Iss 12, Pp 9587-9597 (2023)
ABSTRACT: Many multiparous dairy cows experience subclinical hypocalcemia (SCH) in the immediate postpartum period as they adapt to the demands of lactation. Furthermore, differing dynamics of SCH in the days following parturition are associated with
Externí odkaz:
https://doaj.org/article/b2a0de89ada848adb9f0159b2213da70
Publikováno v:
Journal of Dairy Science, Vol 106, Iss 10, Pp 7320-7328 (2023)
ABSTRACT: Recent studies have shown that cows with subclinical hypocalcemia (SCH) at 4 d in milk (DIM), regardless of their blood Ca concentration before that time point, suffer from an increased early-lactation disease risk and reduced milk yield, w
Externí odkaz:
https://doaj.org/article/49bcf81cb43549838190d5deec7ca32b
Autor:
J.A. Seminara, K.R. Callero, I.R. Frost, R.M. Martinez, H.A. McCray, A.M. Reid, C.R. Seely, D.M. Barbano, J.A.A. McArt
Publikováno v:
Journal of Dairy Science, Vol 106, Iss 10, Pp 7117-7130 (2023)
ABSTRACT: At the onset of lactation, calcium (Ca) homeostasis is challenged. For the transitioning dairy cow, inadequate responses to this challenge may result in subclinical hypocalcemia at some point in the postpartum period. It has been proposed t
Externí odkaz:
https://doaj.org/article/96bf4b2426624035b0f3da10b8f6cdd2
Autor:
K.R. Callero, E.M. Teplitz, D.M. Barbano, C.R. Seely, J.A. Seminara, I.R. Frost, H.A. McCray, R.M. Martinez, A.M. Reid, J.A.A. McArt
Publikováno v:
Journal of Dairy Science, Vol 106, Iss 4, Pp 2716-2728 (2023)
ABSTRACT: Cows undergo immense physiological stress to produce milk during early lactation. Monitoring early lactation milk through Fourier-transform infrared (FTIR) spectroscopy might offer an understanding of which cows transition successfully. Dai
Externí odkaz:
https://doaj.org/article/acb18527557540349a225c0eef21e0f0
Autor:
C.R. Seely, J.A.A. McArt
Publikováno v:
JDS Communications, Vol 4, Iss 2, Pp 111-115 (2023)
Delayed or persistent episodes of subclinical hypocalcemia (SCH) have been associated with reduced milk production and feed intake and they put cows at risk for additional disease development. However, little is known about the effect of delayed or p
Externí odkaz:
https://doaj.org/article/cfacaa5743504a4fba4d0dc03677979d
Autor:
K.D. Bach, J.A.A. McArt
Publikováno v:
JDS Communications, Vol 2, Iss 4, Pp 207-211 (2021)
Subclinical hypocalcemia, a reduction in blood calcium concentrations without apparent clinical signs of milk fever, occurs in 25 to 50% of early-postpartum dairy cows. Research has shown that these cows are at an increased risk of additional early-l
Externí odkaz:
https://doaj.org/article/33379089af584473be9df3c3df15043e