Reproduction in Dairy Cattle

thank you for a very good article about the Reproductive Efficiency in the Dairy Herd. As rightly said reproduction efficiency is not a heritable trait but an environmental character in the form of better nutrition&good management practices. The role of supplementation of trace minerals have been duly emphasized.
The important aspects like giving good quality of roughages(green or silage) in sufficient quantity is also pre-requisite for better reproductive efficiency.

Yes ,the body score level is a basic aspect for fertility in Dairy Herd. I agree with you.
The trace éléments… why not…
But you seem to forget the essential : the level of blood insuline, the key of the ovary feeding & maturity.
No good fertility without good feeding/glucose ovary…
No good fertility without good mature ovary…QED… quod erat demonstrandum…
I will be pleased to explain the physiological mecanism with datas.
PhG.

A very impressive article about the Reproductive Efficiency in the Dairy Herd full of wisdom based on practical experiences.

It is very comprehesive article article about the Reproductive Efficiency in the Dairy Herd which guides the farm managers/ nutritionists to get optimal results.keep it up.

The paper "Reproduction Efficiency in the Dairy Herd" posted by W Smith is interesting and informative, giving practical tips for keeping the fertilty status of dairy cows at an optimum level. In fact the genetic improvement support milk yield which in turn drains most of the nutritents from the circulatory system for milk synthesis, sparing little for maintaining reproductive activities.

In regions like Pakistan, the situation is even worse, to prevalence of seasonal stress, malnutrition and disease occurence. Here the dairy cows produced through crossbreeding of local ones with exotic semen like HF and Jersey, face the loss of local genese, deceasing thier resistance to harsh environment. This is coupled with the improvement in milk yield in the presence of under nutrition, which lead to severe health and fertilty problems. We have seen here the prolonged estrus duration, remaining sometimes for up to 72+ hours. We are working on these problems through postgraduate thesis research.

Very good article about the Reproductive Efficiency in the Dairy Herd. Can you inform me the salts of zinc , manganese ,copper, selenium to be injected subcut and where to give the injection. Also the dose per day and for how many days before and after as mentioned by you.

A good article about the Reproductive Efficiency in the Dairy Herd, and I agree with Dr. Subhan views. In our country small farmers and even big grower in villages are not fully aware of the importance of mineral nutrition . Only ca source is provided before and after calving while for calves and heifers very little or sometimes no mineral supplementation is provided.
With the advancement in dairy business progressive farmers are entering in dairy business but still they are lacking of information. Any farmer viewing such paper can get knowledge about the importance of mineral nutrition. so i think this a good paper for those which are the part of Pakistan Dairy industry.

The importance of micro nutrients and essential vitamins in Dairy Herd is an uncontested fact. In several dairy farms while making TMR these trace minerals and vitamines get seperated and lost from the cow's feeding. The injection would indeed ascertain the nutrients entering into the system.

There is a feed technology to cater these nutrients into cow's system. The production of Sweet licks with a proper formula that comprises all necessary trace minerlas, vitamines, probiotics along with energy feeds like sugar made into a hard block would ensure the ingestion because ruminats have a capacity to sense the nutrients and consume as and when required. This method of feeding would offset the defeciencies and would also ward of excess consumption as there is a biol rythemic control by cow itself. In my experience manufacturing such sweet animal licsk with fortified micro nutrients and keep in frot ocoe for its accessability would control the defeciecies and probablle reproductive problems.

its an informative article about the Reproductive Efficiency in the Dairy Herd. To maximise reproductive efficiency we must pay special attention to inorgainic minerals in daily feeding and water intake

Dr. Smith makes some pretty nice points in this article about Dairy Herd. I know that it is not the eaisiest to make high reproduction efficiency happen on most of the herds today. However, I have been making progress in this area with herds around 27000 to 30000 RHA having calving intervals around that 13.0 to 13.5. I have been adding the trace minerals in the form of polysaccaride complexes in the feed olny at 100% inclusion for some time. I am interested in seeing the affects that could happen with the injection of these nutrients. I really enjoyed this artice.

VERY IMPORTANT ARTICLE ABOUT THE REPRODUCTIVE EFFICIENCY IN THE DAIRY HERD AND THANK YOU FOR TEACHING US.
EVERY DAY

Thank you so much for your article about the influence of mineral (trace elements ) on reproduction performance of dairy herd. As an extension officer (Specialist Agricultural Advisor in Animal Production ) the article will help me to help dairy farmers to feed their cows to improve their oestru cycle and prevent abortion which are the serious problems to most of our emerging farmers

Regards

Matshidiso Maine