Reproductive Disorders in Dairy Cattle

On your cattle what is the most prevelance of Artificial Insemination breeding? In my experience with a herd strength of about 600 in my Goshala in Delhi , we practically do not have any of these problems of mastitis, abortions, prolapse etc.
We do not use Artificial Inseminations. We use only natural breeding by good bulls. We rotate our bulls to avoid inbreeding . We are using forward breeding backward breeding to upgarde our cows. Our targets are pegged at getting lactations around 3000 liters from Sahiwal/Gir cows in Delhi area.
From the study cited it is noticed that most of the problems are clustered around exotic breeds. Native breeds with natural breeding , good healthy feeds and clean living conditions seem to be the obvius comment .

Dr Islam's findings confirm what we have noticed here across the Border in south West Bengal-that the local landrace of cattle and local breeds have less reproductive and health problems generally, than exotic (Jersey,Frisiean) cross-bred cattle. There is one aspect missed which may be masking/affecting the results of this study. This is the prevalence of copper deficiency, noticed as faded color and spectacle marking on cows in Baruipur-Canning area. Bangladesh across the border is likely to have a similar problem.

I would guess that atleast a third of the cattle and practically all Jersey cross cows show this circle of faded/hairless patch round the eyes, and dull faded hair on the rear flanks. Copper deficiency is known to cause lowered immune response which would reduce ability to fight staphyloccus infection in mastitis. It would also contribute to lower cycling, impaired fertility and general unthriftiness.

In her book on Natural Cattle Rearing, Pat Coleby states that black or colored cattle have upto four times the copper requirement of those with light colored coats. The local landrace here are all grey. The occassional black or red cow is usually of mixed local*exotic ancestry and here the lack of copper becomes very evident. Black cows and calves tend to develop a brown hair on the hind quarters.

This point may partly explain the poor reproductive performance of the exotic cross cattle in the study.

Debashis Ray, Kolkata, India.

Hello, that is a nice work  about Reproductive Disorders in Cattle in terms of showing the results of the current environmental conditions. But I couldn't find Author's discussion to enough and his comment at the end of article except a few sentences.
According to me, Author's comment is most important because, the researcher best knows about the environmental conditions, such as: type of given feed and hygiene measures, health care applied to animals at there. And the cause of Reproductive problems are poor manegement and feeding policies.

Dr.Abdulhadi Basaran
Ankara, Türkiye

My experience for last 37 years in vet practice I found the most cause of reproductive disorders is nutritional ie, protein, carbohydrate, vitamins & minerals. Nobody of us before treating the reproductive disorders examine the blood picture or nutritional conditions. I experienced that the Cattle & buff of country side Or which are regularly green feeding like--banana stems & leaves, drumstick leaves, carrot, radish, corriender subabul, agathi etc leaves they are suffering less.

Dr Swapan Kumar Sur
BVSc&AH, MVPH.