Variation in milk and its relationship with management in crossbred cattle

Although article is interesting but nothing is new. The study confirms already confirmed facts. The effect of management was not discussed but it is mentioned in title. All the animals are kept under standard management conditions (mentioned by authors). Instead of mentioning feed stuff the nutrients supply will be more meaningful. The concentrate feeding should be adjusted according to the energy secreated in the milk and it is very imported for the high yielding animals. The effect of tempereture also needs to be addressed as it affects the water and feed intake. The high water intake will definitely reduce the lag time and nutrients absorption and affect milk yield.

Comments of the honorable member are welcome. The study reports an applied work under tropical conditions without any intervention. Age of the animals, lactation stage, pregnancy status and feed types were selected as independent variables, related to management. Composition of milk is regulated by the hypothalamus through various hormones and regulating factors. This phenomenon changes with maturity of the animal associated with the increasing age. Postpartum changes in the physiological status of the animal affect the nutrients composition of milk by changing hormonal levels, in line with the reproductive cyclicity, nutrient supply and milk yield. Nutrient supply was not the focus of this study, so only feed types were selected because they influence the availability of substrates to the blood circulation, which are utilized for milk synthesis or stored as adipose tissues. The four management parameters selected for this study may be used as variable in the farm management practices.

The experiment is a wonderful try by Dr Qureshi. Such trials must continue in different locations and by different scientists especially when we talk of cross bred animals as in Pakistan there is no specific policy about cross breeding. Many new things come out when different scientists try the same thing in different locations in their own way. Does not make any difference if somebody is not benifitted but I am the one who has got my mind clear about factors affecting milk composition. Syed Hassan Raza is well respected person in the field of livestock management and I will request him to add the management tips based on his vast knowledge and experiences to make the article more beautiful and comprehensive in the interest of livestock business and community. I again congratulate Dr Qureshi for his fruitful efforts

Dear Hafiz sb To set feeding,breeding and management tips is not easy job unlless you visit farm yourself and have complte information of management system being used at that farm. Anyhow two things breeding plan and management plans are very important to run a crossbred farm. The management would remain changing with change in environment and physiological conditions of animals. Of course with change in locality the management practices will also changed. To improve the ptoductiivity of farm on commercial grounds the wet average and herd average need to be monitored very carefully after setting production goals.

Very informatic article. thank you Hafiz Sb and Hassan Raza Sb for addtional comments and remarks Regards Subhani

This article is really very interesting.Although things are not new but still giving importance to these aspects is really important.Thanks every 1 for sharing their knowledge.and I truely agree with Syed Hassan Raza sb. Regards, Dr.Sana Ahmad