I find the article interesting,my question is,are semen from select sires weak !?
It is really damaging with the advance use of science. What is the next for genetics study. In many developing countries, Holstein crosses with local for upgrading as well as to other breeds.
What about the other breeds like Jersey?
Really, that was amazing situation, it is better to dilute the existing population, more of by using natural mating systems to regain the diversity of genes. Because, most of researchers focuses on fertility of high producing breeds constrained by several factors. most of these breeds use artificial insemination, estrus sign and heat period usually not easily detectable, may be through time they loose some of characters & consequently traits. thanks for sharing information.
Despite the seriousness of the issue the need to consider comments of the following types is immense.
“…. there isn’t a farmer alive that is going to lose milk to gain diversity” and “Why would anyone care if there is a bad gene as long as you get 50,000 lbs of milk”. Is there a way the cost of ‘diversifying’ can be born by the public? The diversity genes at the moment are considered as a public good and it will be difficult to convince dairy farmers to bear the cost of maintaining them.
The commercial farmers might *not* bear the cost of genetic preservation. But small, noncommercial farmers and homesteaders might. These are farmers who aren’t necessarily making their primary living off of their farms, and may indeed be losing money or equity on them. On farms like these, heritage and rare breeds of livestock are more likely to be perpetuated. These breeds are where genetic diversity can be maintained, not necessarily within a specific breed’s gene pool (especially among the rare breeds) but within the species as a whole.
Genetic insurance against a monoculture will likely remain with small-scale farms and noncommercial breeds of livestock rather than with commercial farmers and breeds themselves, as well as gene banks to which small farms also contribute.
French Bulldogs. Been around since 1800’s, but can’t reproduce or give birth on their own. On one hand you could argue genetic diversity played a large part in determining who survived the bubonic plague. On the other hand given the choice why wouldn’t everyone want the genes that survived the plague, or just use penicillin.
It would interesting to the genomic numbers on the offsping.
Very interesting, always the trolls,
These professors forget to tell that a lot of genetic diseases are tackled by providing info of a whole list of them in a code:
Genex had a very good bull but he was a MuleFoot carrier:
No farmer wanted that
Today every bull has a long list of possible defectness
what list of defects??, please educate me.
Did you research ABC REFLECTION SOVERIGN This was a Canadian Bull back in the 1950.s and he was 25% to 50% Ayrshire, that is where your Red factor came from.
This bull was used extensively in Ontario Holstein herds for better type and very successful.
I invite you to check it out by letting a red and white calf grow its horns and see if they are Holstein horns or Ayrshire horns.
Is that why most Canadian Holsteins were very good type but about 25 percent short in the milk Paul compared to US counterparts???
The red Holsteins came from a recessive hidden gene and not from the Ayrshires !
This is a fable
Edward. Do you have proof to back up your claim on ABC Reflection Sovereign??
The Red Factor did not originate with this bull. There is plenty of documentation on this subject.
I look forward to seeing your scientific evidence.
Wait, bigger, thinner and more milk is what we’ve sold. Not shorter, heavier or MEANER.
But, I have question, did they do this with the rest of the breeds? Swiss should be easier..
I haven’t seen the bulls being offered. I would use them. Who else could they have selected? Rosafe caliban was good in type and alster pilot was good un production
I have not seen it offered either. I would use it. Rosafe caliban was a good type bull Zimmerman alster pilot was bad in type but good in production. What other bulls could they have used?
I find the article interesting. Also there isn’t a farmer alive that is going to lose milk to gain diversity. Cows are on the farm for what 1.5 lactations? There are less small family farms that care about how long the animal will last. Why would anyone care if there is a bad gene as long as you get 50,000 lbs of milk.
I have not seen my Select Co-op offer these bulls for sale. I have issues with the bloodlines used. Type was lousy. I think there are others that would be better.
That is the whole problem with selling living creatures. They shouldn’t be sold for their milk. I’m sorry.
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