Methods for estimating body reserves in grazing dairy cows: Body condition score and backfat thickness

2021 ◽  
Vol 37 (6) ◽  
pp. 758-762
Author(s):  
Letícia Wlodarski ◽  
Diego S. Zeni ◽  
Rémy Delagarde ◽  
Luc Delaby ◽  
João A.R. Rosback ◽  
...  
Keyword(s):  
Dairy Cows ◽  
Body Condition ◽  
Body Condition Score ◽  
Backfat Thickness ◽  
Body Reserves ◽  
Condition Score ◽  
Grazing Dairy Cows

Leptin interrelationships to energy-related metabolites and hormones in fed and fasted sheep

2002 ◽  
Vol 2002 ◽  
pp. 87-87 ◽  
Author(s):  
A.R.G. Wylie ◽  
D.J. Devlin ◽  
A.J. Bjourson
Keyword(s):  
Body Weight ◽  
Dairy Cows ◽  
Body Fat ◽  
Body Condition ◽  
Previous Investigation ◽  
Body Condition Score ◽  
Backfat Thickness ◽  
Early Lactation ◽  
Weak Correlation ◽  
Condition Score

A review of published leptin data for growing lambs, older ewes and mature dairy cows in late lactation showed that only 0.30-0.37 of the variation in blood leptin concentration was explained by differences in body fat variably expressed as % of liveweight (LW), backfat thickness and body condition score (BCS) respectively (Wylieet al., 2002). In dairy cows between 15d and 226d postpartum, Wylieet al(2002) observed no overall correlation between leptin at slaughter and lipid expressed as % of LW, empty body weight or carcase weight and only a weak correlation in cows in mid-lactation. Losses of fat during early lactation may ‘uncouple’ the link between leptin and fat and produce a bias across all of lactation. Another explanation is that leptin may be more closely linked with lipogenesis than with the amount of stored fat. This study revisits some metabolite and hormone data from a previous investigation of IGF-1 changes in fed, fasted and re-fed sheep in the light of more recently obtained leptin concentrations in the same animals.

scholarly journals Prepartum feeding level and body condition score affect immunological performance in grazing dairy cows during the transition period

2016 ◽  
Vol 99 (3) ◽  
pp. 2329-2338 ◽  
Author(s):  
Joshua Lange ◽  
Allison McCarthy ◽  
Jane Kay ◽  
Susanne Meier ◽  
Caroline Walker ◽  
...  
Keyword(s):  
Dairy Cows ◽  
Body Condition ◽  
Transition Period ◽  
Body Condition Score ◽  
Feeding Level ◽  
Condition Score ◽  
Grazing Dairy Cows

scholarly journals Increase in white blood cell counts by pegbovigrastim in primiparous and multiparous grazing dairy cows and the interaction with prepartum body condition score and non-esterified fatty acids concentration

PLoS ONE ◽  
2021 ◽  
Vol 16 (1) ◽  
pp. e0245149
Author(s):  
Joaquín Barca ◽  
Ynte H. Schukken ◽  
Ana Meikle
Keyword(s):  
Blood Cell ◽  
Dairy Cows ◽  
Body Condition ◽  
White Blood Cell ◽  
Body Condition Score ◽  
Negative Association ◽  
Nefa Concentration ◽  
Condition Score ◽  
Peg Treatment ◽  
Grazing Dairy Cows

The objective of this study was to determine if parity affected the effect of pegbovigrastim (PEG) treatment on white blood cell (WBC) counts in grazing dairy cows. Additionally, the association of prepartum body condition score (BCS) and non-esterified fatty acid (Pre-NEFA) concentration with WBC counts was investigated. The effect of early-lactation disease was included in the statistical analysis. A randomized controlled trial on four commercial grazing dairy farms was performed. Holstein primiparous (Control = 87, PEG = 89) and multiparous (Control = 181, PEG = 184) cows were randomly assigned to one of two treatments: first PEG dose 8 ± 5 (mean ± SD) days before the expected calving date and a second dose within 24 h after calving (PEG) compared to untreated controls (Control). Treatment effects were evaluated with mixed linear regression models. Treatment with PEG increased WBC, neutrophil, lymphocyte and monocyte counts at 6 ± 1 (mean ± SD) days in milk. Parity, BCS and their interactions with treatment were not associated with WBC counts. In control cows, Pre-NEFA concentration was associated with reduced WBC, neutrophil and lymphocyte counts and tended to be associated with reduced monocyte counts. Pegbovigrastim treatment reversed the negative association of Pre-NEFA concentration with neutrophil and monocyte counts and tended to reverse the negative association of Pre-NEFA concentration with WBC counts. In the PEG treated group, cows diagnosed with retained placenta or metritis showed lower neutrophil counts when compared to PEG treated cows without these clinical diseases. These data confirm that PEG treatment increases WBC, neutrophil, lymphocyte and monocyte counts in grazing dairy cows and that this effect is independent of parity. Pegbovigrastim treatment reversed the negative association of Pre-NEFA concentration with neutrophil and monocyte counts, and tended to reverse the negative association of Pre-NEFA concentration with WBC counts.

1340 Prepartum body condition score and plane of nutrition affect the hepatic transcriptome during the transition period in grazing dairy cows

2016 ◽  
Vol 94 (suppl_5) ◽  
pp. 646-647 ◽  
Author(s):  
M. Vailati Riboni ◽  
S. Meier ◽  
C. Burke ◽  
J. K. Kay ◽  
M. D. Mitchell ◽  
...  
Keyword(s):  
Dairy Cows ◽  
Body Condition ◽  
Transition Period ◽  
Body Condition Score ◽  
Condition Score ◽  
Grazing Dairy Cows ◽  
Hepatic Transcriptome
Sign in / Sign up

Export Citation Format

Share Document