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Effect of Individual Cows Factor on Prevalence of Anestrus in Heifer and Postpartum Cows at Rajshahi Region of Bangladesh

Md. Jalal Uddin Sarder
Department of Veterinary and Animal Sciences, University of Rajshahi, Rajshahi-6205, Banglades

Md. Hemayatul Islam
Department of Veterinary and Animal Sciences, University of Rajshahi, Rajshahi-6205, Banglades

Rashida Khaton
Department of Veterinary and Animal Sciences, University of Rajshahi, Rajshahi-6205, Banglades

Soniya Akter Nishi
Department of Veterinary and Animal Sciences, University of Rajshahi, Rajshahi-6205, Banglades

Most. Rokeya Sultana
Department of Veterinary and Animal Sciences, University of Rajshahi, Rajshahi-6205, Banglades

Abstract/ Executive Summary:

Context: Anestrus cow is big problem in worldwise, share the feed, fodder and water resources and colossal burden to the animal owner. Objective: This study was carried out to evaluate the effect of individual cows factor on prevalence of anestrus in heifer and postpartum cows at Rajshahi region of Bangladesh. Materials and Methods: Data were collected by interviewing the owner of the cows using questionnaires from selected private dairy farms at two districts namely Rajshahi and Natore. Total 294 dairy cows were selected for evaluating the prevalence of anestrus cows due to various risk factors such as age, breed, genetic composition, body weight, body condition score and parity during the period from July 2017 to June 2018. The raw data were then sorted, computed, coded and statistically analyzed with the help of latest version of SPSS statistical software package. Results: The present findings revealed that, the overall prevalence of anestrus arts was 54.4%. The age, breed, genetic composition, body weight, body condition score and parity of cows influenced the prevalence of anestrus in cows. The highest prevalence of anestrus were 60%, 55.00%, 66.66%, 56.81% and 62.33% in <4 year’s age, crossbred, Local x Sahiwal genetic composition, poor body condition and heifer group of dairy cows respectively at Rajshahi region, Bangladesh. On the other hand the lowest prevalence of anstreus were recorded 39.39%, 50.00%, 50.00%, 51.21% and 42.10% in >6 years age, indigenous breed, local non descriptive genetic composition, good BCS and 3rd parity cows, respectively. Conclusion: The prevalence of anestrus was higher in young, crossbreed, Local x Sahiwal, Poor body condition and heifer cows.

Keywords: Anestrus, Individual cow factors, Dairy cows, Rajshahi

Location: Rajshahi and Natore district, Bangladesh

Start Date: 00-07-2017

End Date: 00-06-2018

Program Area: Animal Health and Management

Commodity: Cow

Objectives:

To evaluate the effect of individual cows factor on prevalence of anestrus in heifer and postpartum cows at Rajshahi region of Bangladesh.

Methodology:

The research was conducted 74 private dairy farms at two districts namely Rajshahi and Natore. Total 294 dairy cows were selected for the Identifying the prevalence of anestrus cows due to various risk factors from July 2017 to June 2018. The data has been collected directly from the dairy farms owner by using questionnaires and gynecological examination of cows were made on the basis of history, clinical examination and observation. Out of 294 dairy cows 160 anestrus cows were observed for anestrus clinical managements. Postpartum anestrus was defined as lack of estrus in a cow that had calved 60 or more days (Opsomer et al., 2004). It was evaluated in age, breed, genetic composition, body condition Score (BCS) and parity of the cows in Rajshahi region. Grouping of selected cows To achieve the goal, animals were grouped according to following considering factors: Status of cattle: it was divided in two ways anstrus and normal cows. Age: The examined cattle were divided in three groups such as < 4 years (n=96), 4 to <6 years (n=51) and > 6 years (n=13). Breed: Local non descriptive and cross breed. Genetic composition: it was also sub divided into Indigenous (n=7), Local ×Frisian (n=143) and Local ×Sahiwal (n=10). Body Condition Score (BCS): On the basis of body condition score the cattle was divided in poor (n=96), medium (n=96) and good (n=96) BCS groups and Parity: The whole cattle divided in to 5 groups. It was heifer (n=48), 1st parity (n=50), 2nd parity (n=42), 3rd parity (n=16) and ≥4th party (n=10). Statistical analysis: The Data which was collected, sorted and complied with the help of computer software SPSS. Various statistical tools such as %, mean, standard deviation, incidence & chi-square test and the significant difference among therapeutic treatment means were identified by least significant difference (LSD) test.

Source of Information: Bangladesh livestock journal. 2018. 1: 34-36, ISSN 2409-7691

Article Link (Online Journal):

Funding Source:

Budget:

Total Budget (Tk.) :

Achievement/Findings:

A high percentage of the cows were identified as being anestrus at 60 or more days postpartum. The higher proportion of subestrus among cows determined as anestrus indicates that poor estrus detection is a much more serious problem than true anestrus. The prevalence of anestrus cows was recorded 54.42%. The highest prevalence of anestrus were observed in <4 yrs age (60.0%), crossbred (55.0%), Local×Sahiwal (66.66%) genetic composition, poor body condition (56.81%), 1st parity (60.97% and heifer (62.33%) cows at Rajshahi region in Bangladesh.

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