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77820

Effect of dry period length on reproduction, health and milk production in the subsequent lactation of Holstein cows

Article

Last updated: 22 Jan 2023

Subjects

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Tags

Veterinary clinical research (Veterinary Surgery, theriogenology, inte…seases, clinical pathology, applied epidemiology and animal hygiene).

Abstract

A retrospective study was employed to investigate the effect of dry period length on reproduction, incidence of reproductive and metabolic disorders and milk production in Holstein cows belonging to a commercial dairy. Over a 5 year period (2000- 2005), data about reproductive performance, postpartum and metabolic disorders were collected on 1914 multiparous Holstein cows. Out of the obtained data production performance were available only for 793 cows. According to the obtained data the dry period was categorized into 10 groups of different lengths. Reproductive performances including the interval to 1st service, service period, number of inseminations per conception, day's open, calving interval and percentage of pregnant cows within 100 days in milking (DIM) were recorded as a function of dry period length. The incidence of postpartum reproductive and metabolic disorders included retained fetal membranes (RFM), endometritis, cystic ovarian disease (COD), mastitis, milk fever (MF), ketosis and abomasal displacement were recorded as a function of dry period length. Milk production was also studied in relation to dry period length. Statistical analysis of the obtained data was performed.
The most important notifiable results were: cows with dry period less than 28 days showed the best reproductive performance and the highest incidence of abomasal displacement among all groups. In general, the incidence of MF and RFM were higher in short dry period cows, while the incidence of ketosis was higher in cows with long dry period length. A highly significant difference was recorded between daily milk yield of cows with dry period less than 64 days (27.23 kg) and those of cows with dry period > 64 days (25.20 kg).
Finally, it is recommended to keep the dry period of 40-60 day lengths to obtain optimum reproduction, health and production of Holstein cows.
 

DOI

10.21608/jvmr.2009.77820

Keywords

Effect, dry period, length, Reproduction, Health, milk production, subsequent, lactation, Holstein cows

Authors

First Name

M. M.

Last Name

Hussein

MiddleName

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Affiliation

Department of Theriogenology Faculty of Veterinary Medicine, Beni-Suef University, Beni-Suef 62511, Egypt.

Email

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City

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Orcid

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Volume

19

Article Issue

2

Related Issue

11633

Issue Date

2009-03-01

Receive Date

2020-03-17

Publish Date

2009-03-01

Page Start

62

Page End

73

Print ISSN

2357-0512

Online ISSN

2357-0520

Link

https://jvmr.journals.ekb.eg/article_77820.html

Detail API

https://jvmr.journals.ekb.eg/service?article_code=77820

Order

9

Type

Original Article

Type Code

891

Publication Type

Journal

Publication Title

Journal of Veterinary Medical Research

Publication Link

https://jvmr.journals.ekb.eg/

MainTitle

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Details

Type

Article

Created At

22 Jan 2023