Improving Productive and Reproductive Performance of Holstein Dairy Cows through Dry Period Management

Safa, Soroush; Soleimani, Akbar; Moussavi, Alireza Heravi

doi:10.5713/ajas.2012.12303

Cited by 13 publications

(12 citation statements)

References 47 publications

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“…Previous studies (e.g., Klusmeyer et al, 2009;Soleimani et al, 2010;Safa et al, 2013) have shown that reducing the dry period length decreases milk yield in the subsequent lactation. This has been also confirmed by retrospective studies (Atashi et al, 2013;Ghavi Hossein-Zadeh and Mohit, 2013;Steeneveld et al, 2013).…”

Section: Milk Productionmentioning

confidence: 94%

“…Most previous studies (e.g., Rastani et al, 2005;Pezeshki et al, 2007;Soleimani et al, 2012) found no effect of shortening the dry period to shorter than 40 d on basic parameters of blood, such as concentrations of glucose, BHBA, and NEFA. Watters et al (2008), Klusmeyer et al (2009), and Safa et al (2013) observed decreased concentrations of BHBA and NEFA after calving for cows with SDP compared with cows given the traditional dry period of about 60 d. As reviewed by Pezeshki et al (2010), continuously milked cows have lower concentrations of BHBA and better energy status in the subsequent lactation.…”

Section: Concentrations Of Plasma Metabolites and Parameters Of Rumen Fluidmentioning

confidence: 95%

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Comparison of shortened and conventional dry period management strategies

Čermáková¹,

Kudrna²,

Šimečková³

et al. 2014

Journal of Dairy Science

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The aim of this study was to compare 2 dry-cow management strategies and evaluate the effect of shortened dry period strategy on feed intake, metabolism, and postpartum performance of dairy cows in early lactation. Twenty-nine high-yielding dairy cows were divided into 2 groups. The control (CON) group (n=14) was assigned to a traditional dry period of approximately 60 d (57±5.9 d) and was fed a far-off dry cow ration from dry-off to -21 d relative to expected parturition. From d -21 relative to expected parturition, the cows were switched to a precalving ration containing an additional 3kg of concentrates. The cows of the experimental group (n=15) were assigned to a shortened dry period (SDP; 35±6.3 d) and were continuously fed a late-lactation diet from d -60 d relative to expected parturition until calving. After calving, both groups were fed the same lactation diet corresponding to their lactation requirements and cows were followed for 100 d of lactation. Prepartum dry matter intake of the cows assigned to an SDP and fed a late-lactation diet was approximately 4.11kg/cow per day greater compared with the CON group during the 60 d. However, no effect of dry period strategy on postpartum dry matter intake was detected. The cows with an SDP produced approximately 2.78kg/d (6.9%) less milk in the first 100 d of lactation than CON cows; the difference was not statistically significant. No differences were observed in live body weight, body condition score, or back-fat thickness between the treatments. Similarly, no differences existed in concentrations of plasma metabolites. The cows of the SDP group showed lower pH and increased concentrations of lactic acid and volatile fatty acids prepartum than the CON cows. Postpartum concentrations of lactic acid, volatile fatty acids, and NH3 and pH in rumen fluid did not differ between the treatments. Shortening of the dry period did not affect the colostrum quality or birth weights of the calves. Based on the results of this study, a traditional dry period management strategy appeared to be more favorable, considering the dry matter intake and milk production, compared with an SDP and feeding a late-lactation diet throughout the dry period.

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Section: Milk Productionmentioning

confidence: 94%

Section: Concentrations Of Plasma Metabolites and Parameters Of Rumen Fluidmentioning

confidence: 95%

Comparison of shortened and conventional dry period management strategies

Čermáková¹,

Kudrna²,

Šimečková³

et al. 2014

Journal of Dairy Science

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“…Dry period is one of the important management strategies. Previous studies reported that to maximize milk yield in the next lactation in dairy cows, a 50 to 60 d dry period is necessary (Safa et al 2013). Reducing dry period length may affect fertility efficiency (Watters et al 2009).…”

Section: Introductionmentioning

confidence: 99%

Genetic and non-genetic analysis for milk production and reproductive traits in Holstein cattle in Egypt

Faid-Allah¹

2015

JITV

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Penelitian ini dilakukan untuk mempelajari faktor-faktor genetik dan non-genetik yang mempengaruhi serta menduga nilai parameter genetik dari sifat-sifat reproduksi dan produksi susu sapi Friesian Holstein (FH) melalui animal model. Data didapatkan dari peternakan komersial (Safi Masr for Developing the Animal Resources), yang berlokasi di Delta Nil, Dakahlia, Mesir, yang meliputi 4791 catatan dari 1797 ekor betina, yang berasal dari 794 ekor induk dan 76 ekor pejantan selama periode 2002-2012. Nilai rataan dan koefisien variasi (CV %) dari sifat produksi susu yang terdiri dari total produksi susu (TMY), produksi susu 305 hari (305 dMY), masa laktasi (LP) dan masa kering (DP) adalah 7208,72 kg (24,33%), 6384,95 kg (19,37 %), 332 hari (14,87%) dan 72,33 hari (27,69%), berturut-turut. Nilai rataan dan koefisien variasi (CV %) dari sifat-sifat reproduksi yang terdiri dari masa kosong (DO), umur pertama beranak (AFC) adalah 157,9 hari (22,6%) dan 30,5 bulan (16,8%) berturutturut. Pejantan, induk, paritas, tahun dan musim beranak berpengaruh nyata terhadap sifat-sifat yang diamati. Nilai dugaan heritabilitas adalah 0,223; 0,184; 0,112; 0,118; 0,105; dan 0,285 untuk sifat-sifat TMY, 305-dMY, LP, DP, DO dan AFC berturut-turut. Nilai dugaan korelasi genetik (rg) dan fenotipik (rp) antar sifat-sifat produksi susu adalah positif, tetapi negatif pada DP dan DO. Estimasi heritabilitas yang moderat dan korelasi genetik yang positif dari sebagian besar sifat-sifat yang diamati menegaskan bahwa perbaikan secara genetik pada sifat-sifat ini dapat dicapai melalui seleksi multi sifat.

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“…Mammary involution and growth occur during the NLP and the rate of this process is an important factor for milk production efficiency in the subsequent lactation. Previous studies have shown that reducing the NLP length decreases milk yield in the subsequent lactation (Klusmeyer et al, 2009;Soleimani et al, 2010;Safa et al, 2013). This has also been proven in retrospective reports (Atashi et al, 2013;GhaviHossein-Zadeh and Mohit, 2013;Steeneveld et al, 2013).…”

Section: Discussionmentioning

confidence: 59%

Effects of non-lactating period length on the subsequent calving ease and reproductive performance of Holstein, Brown Swiss and the crosses

El-Tarabany

2015

Animal Reproduction Science

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Improving Productive and Reproductive Performance of Holstein Dairy Cows through Dry Period Management

Cited by 13 publications

References 47 publications

Comparison of shortened and conventional dry period management strategies

Comparison of shortened and conventional dry period management strategies

Genetic and non-genetic analysis for milk production and reproductive traits in Holstein cattle in Egypt

Effects of non-lactating period length on the subsequent calving ease and reproductive performance of Holstein, Brown Swiss and the crosses

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