scholarly journals Effects of intravenous arginine infusion on inflammation and metabolic indices of dairy cows in early lactation

animal ◽  
2020 ◽  
Vol 14 (2) ◽  
pp. 346-352
Author(s):  
L.Y. Ding ◽  
Y.F. Wang ◽  
Y.Z. Shen ◽  
G. Zhou ◽  
T.Y. Wu ◽  
...  
Keyword(s):  
Dairy Cows ◽  
Early Lactation ◽  
Arginine Infusion ◽  
Metabolic Indices

Protein supplementation to early lactation dairy cows grazing tropical grass: Performance and ruminal metabolism

2021 ◽  
Vol 92 (1) ◽  
Author(s):  
Lucas Jado Chagas ◽  
Camila Delveaux Araujo Batalha ◽  
Marina Arruda Camargo Danés ◽  
José Maurício Santos Neto ◽  
Fernanda Lopes Macedo ◽  
...  
Keyword(s):  
Dairy Cows ◽  
Protein Supplementation ◽  
Early Lactation ◽  
Tropical Grass

scholarly journals Supplementation with Partially Hydrogenated Oil in Grazing Dairy Cows in Early Lactation

2002 ◽  
Vol 85 (3) ◽  
pp. 580-594 ◽  
Author(s):  
G.F. Schroeder ◽  
G.A. Gagliostro ◽  
D. Becu-Villalobos ◽  
I. Lacau-Mengido
Keyword(s):  
Dairy Cows ◽  
Early Lactation ◽  
Hydrogenated Oil ◽  
Grazing Dairy Cows ◽  
Partially Hydrogenated Oil

scholarly journals Evaluation of a Pellet Formulated to Replace Whole Cottonseed in the Diet of Dairy Cows in Early Lactation

1990 ◽  
Vol 73 (9) ◽  
pp. 2460-2469 ◽  
Author(s):  
M. Hein ◽  
E. Grings ◽  
R. Roffler ◽  
P. Happe
Keyword(s):  
Dairy Cows ◽  
Early Lactation ◽  
Whole Cottonseed

The effect of asynchronous diets on the function of the rumen in the lactating dairy cow

1998 ◽  
Vol 1998 ◽  
pp. 19-19
Author(s):  
A.R. Henderson ◽  
P.C. Garnsworthy ◽  
J.R. Newbold ◽  
P.J. Buttery
Keyword(s):  
Protein Synthesis ◽  
Dairy Cows ◽  
Dairy Cow ◽  
Production Performance ◽  
Early Lactation ◽  
Microbial Protein ◽  
Nutrient Flows ◽  
Lactating Dairy Cows ◽  
Overall Efficiency ◽  
Fermentation Parameters

Sinclair et al. (1993) found that a diet formulated to be synchronous with regard to hourly release of nitrogen and energy increased microbial protein synthesis by 14% in sheep. Dairy cows in early lactation experience a shortfall of energy and protein, with available protein determining the overall efficiency of metabolism (MacRae and Lobley, 1986) and subsequent milk production. It is therefore necessary to maximise microbial protein yield during this period. In this study diets were designed for lactating dairy cows to contain the same feed ingredients, but to release nitrogen and energy in the rumen at different times. Rumen fermentation parameters, nutrient flows to the small intestine and production performance were investigated.

scholarly journals CD49f+ mammary epithelial cells decrease in milk from dairy cows stressed by overstocking during the dry period

2017 ◽  
Vol 84 (4) ◽  
pp. 414-417 ◽  
Author(s):  
Mario Baratta ◽  
Silvia Miretti ◽  
Paolo Accornero ◽  
Giovanna Galeati ◽  
Andrea Formigoni ◽  
...  
Keyword(s):  
Epithelial Cell ◽  
Dairy Cows ◽  
Differential Expression ◽  
Mammary Epithelial Cells ◽  
Stocking Density ◽  
Mammary Epithelial ◽  
Early Lactation ◽  
Dry Period ◽  
Cytokeratin 18 ◽  
Cell Subpopulations

The work reported in this Research Communication describes the modification in epithelial cell populations during the first and the last month of milking in Holstein Friesian cows that have undergone different management during the dry period, and we report the differential expression of CD49f+ and cytokeratin18+ cell subpopulations. Twenty six cows were randomly divided into 2 balanced groups that were housed at stocking density of either 11 m2 (CTR) or 5 m2 from 21 ± 3 d before the expected calving until calving. Cells collected from milk samples taken in early lactation and late lactation were directly analysed for CD45, CD49f, cytokeratin 14, cytokeratin 18 and cell viability. We observed a differential expression with a significant reduction in CD49f+ (P < 0·01) and cytokeratin 18+ (P < 0·05) cells in early lactation. Differences were still evident in late lactation but were not significant. These observations suggest that mammary epithelial cell immunophenotypes could be associated with different animal management in the dry period and we hypothesise they may have a role as biomarkers for mammary gland function in dairy cows.

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