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.

An observational study of the dry period length and its relation to milk yield, health, and fertility in two dairy cow breeds

2020 ◽  
Vol 175 ◽  
pp. 104876 ◽  
Author(s):  
Elisabeth Andrée O’Hara ◽  
Kjell Holtenius ◽  
Renée Båge ◽  
Claudia von Brömssen ◽  
Ulf Emanuelson
Keyword(s):  
Observational Study ◽  
Milk Yield ◽  
Dairy Cow ◽  
Period Length ◽  
Dry Period

scholarly journals REVIEW ARTICLE: An integrated view on how the management of the dry period length of lactating cows could affect mammary biology and defence

2010 ◽  
Vol 94 (5) ◽  
pp. e7-e30 ◽  
Author(s):  
A. Pezeshki ◽  
A. V. Capuco ◽  
B. De Spiegeleer ◽  
L. Peelman ◽  
M. Stevens ◽  
...  
Keyword(s):  
Review Article ◽  
Period Length ◽  
Dry Period ◽  
Lactating Cows

The effect of days dry on milk production and fertility in subsequent lactation of high producing Holstein cows

2009 ◽  
Vol 2009 ◽  
pp. 133-133
Author(s):  
S Danesh Mesgaran ◽  
A Heravi Moussavi ◽  
G Koolabadi ◽  
A Banikamali
Keyword(s):  
Milk Production ◽  
Milk Yield ◽  
Present Experiment ◽  
Detrimental Effect ◽  
Holstein Cows ◽  
Dry Period

Several studies have indicated that reducing the length of the dry period to less than 60 days had a more detrimental effect between the first and second lactation than between later lactations (Annen et al., 2004). Other studies demonstrated that a dry period less than 40 days reduces milk yield in the subsequent lactation (Sørensen and Enevoldsen., 1991). Several experiments designed to examine the effects of reducing the days dry to approximately 4 weeks have shown no difference in milk production and/or fat corrected milk in the subsequent lactation (Gulay et al., 2003). The aim of the present experiment was to determine the effect of days dry (from 10 to 90 days, 10 days interval) on subsequent milk production and fertility of high producing Iranian Holstein cows.

scholarly journals Retrospective analysis of dry period length in Italian Holstein cows

2008 ◽  
Vol 7 (1) ◽  
pp. 65-76 ◽  
Author(s):  
Luigi Gallo ◽  
Barbara Contiero ◽  
De Massimo Marchi ◽  
Paolo Carnier ◽  
Martino Cassandro ◽  
...  
Keyword(s):  
Retrospective Analysis ◽  
Period Length ◽  
Holstein Cows ◽  
Dry Period

Effects of dry period length on milk production and composition in early lactating Holstein cows

2009 ◽  
Vol 2009 ◽  
pp. 131-131
Author(s):  
A Soleimani ◽  
A Heravi Moussavi ◽  
M Danesh Mesgaran ◽  
S Safa
Keyword(s):  
Retrospective Analysis ◽  
Milk Production ◽  
Milk Yield ◽  
Metabolic Disorders ◽  
Period Length ◽  
Holstein Cows ◽  
Dry Period ◽  
Nutritional Strategy

Recently, there has been an interest in shortening the non-income-producing dry period (DP). Retrospective analysis of farm data and planned experiments both indicate about a 5 to 6% loss in milk yield during the subsequent lactation when the DP is reduced by approximately 30 d (Rastani et al., 2005). Additional milk produced during the extra 30 d of lactation can compensate for some of the loss in the subsequent lactation. There are, however, some advantages to reducing the dry period length, including increased income from milk in the current lactation, simplified management of dry cows through movement toward a one-group nutritional strategy, decreased metabolic disorders, and reduced strain on dry cow facilities. The aim of this study was to determine the effects of dry period length on milk production and composition in early lactating Holstein cows.

scholarly journals Pengaruh lama kering kandang dan periode laktasi terhadap produksi dan kualitas susu awal laktasi pada sapi perah

2021 ◽  
Vol 19 (2) ◽  
pp. 130
Author(s):  
Dian Wahyu Harjanti ◽  
Zahra Madhini Krismony ◽  
Rudy Hartanto
Keyword(s):  
Specific Gravity ◽  
Milk Production ◽  
Milk Fat ◽  
Milk Protein ◽  
Period Length ◽  
Lactation Period ◽  
Early Lactation ◽  
Dry Period ◽  
Lactating Cows ◽  
Quality Of Milk

<p class="MDPI17abstract"><strong>Objective: </strong>This study aims to determine the relationship between length of dry - and lactation period on milk production of early lactation, as well as milk fat, lactose, protein and specific gravity.</p><p class="MDPI17abstract"><strong>Methods: </strong>A total of 24 dry period Friesian Holstein cows at the 7th month of pregnancy were used. The dry period length were divided into 4 groups and consists of 3 periods of lactation. Parameters determined were milk production and quality in the first month of lactation. Data were tested using the Kruskal Wallis for the effect of dry period length and lactation period on milk production and quality. Wilcoxon analysis for continued trials of significant results.<strong></strong></p><p class="MDPI17abstract"><strong>Results</strong><strong>: </strong>The results showed that 40-79 days dry period length had no significant effect on milk production (P= 0.854), milk specific gravity (P= 0.922), milk fat (P= 0.339), milk protein (P= 0.392) and milk lactose (P= 0.635). Lactation period has a significant effect on milk production (P= 0.001), milk fat (P= 0.011), milk protein (P= 0.028), milk lactose (P= 0.004), but has no significant effect on milk density (P= 0.683). The highest milk production was produced in the VI period with milk production at 675.17 liters/ month (P= 0.001).<strong></strong></p><strong>Conclusions: </strong>The dry period of 40 to 79 days gives similar milk production and quality. The lactation period affects the amount and quality of milk at early lactation. Lactating cows reared in good management are able to produce milk with good quality and high production until the-VI of lactation period.

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