Access to shade during the dry period improves the performance of multiparous Holstein cows

2021 ◽  
Author(s):  
Lorena Román ◽  
Jessica T. Morales Piñeyrúa ◽  
Georgget Banchero ◽  
Alejandro La Manna
Keyword(s):  
Holstein Cows ◽  
Dry Period

Effects of short dry period on complete-lactation milk and component yield in Holstein cows

2013 ◽  
Vol 84 (3) ◽  
pp. 349-359
Author(s):  
Masato NAKAMURA ◽  
Kei-ichi NAKAJIMA ◽  
Yuji TAKAHASHI ◽  
Hiroki SHIONO
Keyword(s):  
Holstein Cows ◽  
Dry Period

scholarly journals Effects of dry period length on follicular dynamics in early lactating Holstein cows

2009 ◽  
Vol 2009 ◽  
pp. 134-134
Author(s):  
A Soleimani ◽  
A Heravi Moussavi ◽  
M Danesh Mesgaran ◽  
S Safa
Keyword(s):  
Dairy Cow ◽  
Detrimental Effect ◽  
Good Reason ◽  
Period Length ◽  
Holstein Cows ◽  
Dry Period ◽  
Management Change ◽  
Lactating Cows ◽  
Current Advice ◽  
Follicular Dynamics

For profitable production of milk, a nonlactating or dry period is established between lactations of dairy cow. There has been substantial recent interest in shortening dry periods. Physiological studies show that the changes the udder goes through to prepare for the next lactation take about three weeks, and yet current advice is that the most appropriate dry period for a modern dairy cow is 45 to 60 days. More recent studies show good reason to question that advice, and suggest dry periods of 30 to 35 days have no detrimental effect on production, but information relating the effects of dry period to subsequent reproductive performance of lactating cows is sparse (Grummer, 2007). Also, the effect of this management change on follicular dynamic has not been adequately evaluated. Therefore, the objective of the present study was to determine the effects of dry period length on follicular dynamics in early lactating Holstein cows.

Effect of cooling Holstein cows during the dry period on postpartum performance under heat stress conditions

2006 ◽  
Vol 105 (1-3) ◽  
pp. 198-206 ◽  
Author(s):  
L. Avendaño-Reyes ◽  
F.D. Alvarez-Valenzuela ◽  
A. Correa-Calderón ◽  
J.S. Saucedo-Quintero ◽  
P.H. Robinson ◽  
...  
Keyword(s):  
Heat Stress ◽  
Stress Conditions ◽  
Holstein Cows ◽  
Dry Period ◽  
Postpartum Performance

scholarly journals Effect of somatic cell count on milk fat and protein in different parities and stages of lactation in Holstein cows

2017 ◽  
Vol 110 (1) ◽  
pp. 37
Author(s):  
Arash CHEGINI ◽  
Navid GHAVI HOSSEIN-ZADEH ◽  
Hossein HOSSEINI-MOGHADAM ◽  
Abdol Ahad SHADPARVAR
Keyword(s):  
Somatic Cell ◽  
Cell Count ◽  
Milk Fat ◽  
Fixed Effects ◽  
Somatic Cell Count ◽  
Repeated Measurements ◽  
Somatic Cell Score ◽  
Holstein Cows ◽  
Dry Period ◽  
Protein Percentage

<p>The objective of this study was to investigate the effect of somatic cell score (SCS) on milk fat and protein in different parities and stages of lactation in Iranian Holstein cows. Records between June 2003 and January 2014 from 208,478 cows in lactations one to nine in 845 herds, comprising 2,456,303 monthly test-day (TD) records were used. The MIXED procedure of the SAS software with repeated measurements was used. The fixed effects of the model were herd, year-season of calving, month of TD, weeks of lactation, previous dry period length and somatic cell score (SCS) and covariate was calving age. Lactations were divided into six stages and analyses were performed within each stage. Also, different lactations were analyzed separately. Increase of SCS led to increase of milk fat and protein percentage and the increase of milk fat and protein associated with SCS was higher in early stages of lactation relative to later stages of lactation. Also, increase of milk fat and protein associated with SCS was higher in the first lactation rather than later lactations and decreased with increase of parity.</p>

scholarly journals Peripartal Metabolism and Production of Holstein Cows Fed Diets Supplemented with Fat During the Dry Period

2004 ◽  
Vol 87 (12) ◽  
pp. 4210-4220 ◽  
Author(s):  
G.N. Douglas ◽  
T.R. Overton ◽  
H.G. Bateman ◽  
J.K. Drackley
Keyword(s):  
Holstein Cows ◽  
Dry Period

scholarly journals Path Analysis of Dry Period Nutrition, Postpartum Metabolic and Reproductive Disorders, and Mastitis in Holstein Cows

1985 ◽  
Vol 68 (9) ◽  
pp. 2347-2360 ◽  
Author(s):  
Charles R. Curtis ◽  
Hollis N. Erb ◽  
Charles J. Sniffen ◽  
R. David Smith ◽  
David S. Kronfeld
Keyword(s):  
Path Analysis ◽  
Holstein Cows ◽  
Reproductive Disorders ◽  
Dry Period

scholarly journals Milk Yields and Hormone Concentrations of Holstein Cows in Response to Sometribove (Somatotropin) Treatment During the Dry Period

1992 ◽  
Vol 75 (7) ◽  
pp. 1883-1890 ◽  
Author(s):  
K.C. Bachman ◽  
D.H. Wilfond ◽  
H.H. Head ◽  
C.J. Wilcox ◽  
M. Singh
Keyword(s):  
Holstein Cows ◽  
Dry Period

scholarly journals PRODUCTIVE AND REPRODUCTIVE QUALITIES OF HOLSTINIZED BLACK – AND-WHITE COWS

2021 ◽  
Vol 57 (2) ◽  
pp. 24-33
Author(s):  
D.N. Bekbaeva ◽  
◽  
B.T. Kulataev ◽  
Keyword(s):  
Live Weight ◽  
Protein Composition ◽  
Holstein Cows ◽  
Dry Period ◽  
Milk Productivity ◽  
Black And White ◽  
Service Period ◽  
White Breed ◽  
Peasant Farm ◽  
Economic Use

The article presents a comparative assessment of the milk productivity, reproductive qualities and productive longevity of Holstein cows of the black-and-white breed, depending on the first insemination of heifers and their linear affiliation. The optimal age of fertilization was established, taking into account the live weight and the duration of economic use of Holstinized black-and-white cows in the conditions of a peasant farm. A comparative analysis of the exterior of cows found that the optimal age for the first fruitful insemination of Holstein heifers of the black-and-white breed is 16-17 months, that cows with the age of the first insemination of 16-17 months to the third lactation came with higher indicators of linear evaluation. The economic efficiency of increasing milk productivity, reproductive qualities and productive longevity is determined depending on the age of the first insemination and the linear affiliation of Holstein cows of the black-and-white breed of cattle in the Almaty region. Keywords: reproduction, longevity, milk productivity, age of the first calving, insemination, live weight of cows, service period, dry period, blood oximetry, protein composition of blood serum.

scholarly journals Effect of E. coli vaccination during the dry period on the immune function of Holstein cows

2012 ◽  
Vol 3 (1) ◽  
pp. 1-6
Author(s):  
K. Okada ◽  
T. Komatsu ◽  
M. Sato ◽  
Y. Niwa ◽  
M. Aoki ◽  
...  
Keyword(s):  
Immune Function ◽  
Holstein Cows ◽  
Dry Period ◽  
E Coli
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