Participation in Forum on July 6, 2025
Dear Dr. Israel,Thanks for sharing such a nice data. First of all. I'd like to know if heifers had received the cooling during rearing period (I mean throughout 3-24 months of age).The second one: I think in all of mentioned herds, the heifers are being bred at less than 55% of mature BW. Thus, the average milk yield is less than 40 kg. Once again, I appreciate this insightful paper.
Ehsan likes this technical article:
Global warming and the constant increase in cow’s milk yield exacerbate the summer problem in dairy farms and increase the production loss caused to milk producers. In order to quantify these losses, I collected data from five large scale high yielding dairy farms (1,500 to 3,000 cows per herd), located in the Torreon region, north Mexico, characterized by a desert climate, with close to 180 ...
Participation in Forum on June 21, 2025
Thank you for such a nice comparison among different the cooling systems. Do you have any picture of "reduced barn volume" to share?
celal izci The reduction in immune system negatively affects also foot. In addition, cows standing more time due to being heat stressed suffer more from foot problems.
Participation in Forum on June 6, 2023
Dearest Bill,
Thank you for your great paper. Just 2 questions:
1- Can we feed the cows only with organic trace minerals? Like what happened for horse and what Altech company did for horses (one-fifth of horse requirements are met by only organic trace minerals.
2- If Co requirement is this much low, why Availa4 is providing cows with the 5-6 times of requirements? Is there any logical reason be ...
Ehsan likes this technical article:
IntroductionPrecision nutrition means diets are formulated as close as possible to requirements while avoiding any deficiency issues. Benefits of precision mineral nutrition can include reduced diet costs, reduced environmental impact, and reduced risk of toxicity. The major problem with precision mineral nutrition is increased risk of deficiency. Deficiency can be manifested as a clinical deficie ...
Our Dairy NRC series of Real Science webinars was very well received and we are talking about the chapter on protein and amino acids.
While there is no data on this, it would most likely be best to deliver a second feeding (if feeding 2x/d) 12 hours later....and make sure feed is pushed up continually (ideally hourly) in between feed deliveries.
Ehsan Theoretically, the preferred ratio for all parameters studies is 1.0
To my opinion, being realistic, a ratio of above 0.9 for PR (which is different from CR), will be considered as good !
Participation in Forum on January 2, 2020
Thanks for your great paper. Do you have any prefer ratio for pregnancy rate? Or, pregnancy rate is the same as conception ratio?