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Livestock & Forage
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<blockquote data-quote="Global ovine" data-source="post: 7893449" data-attributes="member: 493"><p>I sent the link to my long time trusted nutrition/production mentor Dr. Pete Fennessy of AbacusBio for his comments. The following points were discussed:</p><ul> <li data-xf-list-type="ul">Saudi ruminant farming has much more controlled feed inputs than in a grazing situation in the temperate zones.</li> <li data-xf-list-type="ul">The published data appears fine, but will need replicating elsewhere, with which I totally agree.</li> <li data-xf-list-type="ul">Pete is also very skeptical of its application in commercial practice due to difficulties in precise implementation.</li> <li data-xf-list-type="ul">All pastures have differing mineral concentrations and balances due to soil , moisture, species mix and temperature differences. The precise mineral profile will need to be known so they can be manipulated.</li> <li data-xf-list-type="ul">He points out that there may be a risk of embryo loss if a shift goes too far.</li> <li data-xf-list-type="ul">Changing diet in dairy herds to achieve an imbalance in calf gender was abandoned for the development of sexed semen technologies. This work needs digging out to see what were the technological road blocks at that time.</li> </ul><p>My $ worth is this work needs expanding. Those farmers with influence into the prioritising of research programmes/funding (I have now retired from such positions) should initiate discussions with science funding bodies to look into this subject by firstly quantifying its economic opportunity to industry, then identifying the knowledge road blocks for research programmes to eventually get it into a working package for pastoral farming.......or, forgetting it as yet in the too hard basket. However this does not prevent individual farmers from trying to influence lamb gender by simply trying something and seeing if it can be repeated the following year. Best wishes to all who try.</p></blockquote><p></p>
[QUOTE="Global ovine, post: 7893449, member: 493"] I sent the link to my long time trusted nutrition/production mentor Dr. Pete Fennessy of AbacusBio for his comments. The following points were discussed: [LIST] [*]Saudi ruminant farming has much more controlled feed inputs than in a grazing situation in the temperate zones. [*]The published data appears fine, but will need replicating elsewhere, with which I totally agree. [*]Pete is also very skeptical of its application in commercial practice due to difficulties in precise implementation. [*]All pastures have differing mineral concentrations and balances due to soil , moisture, species mix and temperature differences. The precise mineral profile will need to be known so they can be manipulated. [*]He points out that there may be a risk of embryo loss if a shift goes too far. [*]Changing diet in dairy herds to achieve an imbalance in calf gender was abandoned for the development of sexed semen technologies. This work needs digging out to see what were the technological road blocks at that time. [/LIST] My $ worth is this work needs expanding. Those farmers with influence into the prioritising of research programmes/funding (I have now retired from such positions) should initiate discussions with science funding bodies to look into this subject by firstly quantifying its economic opportunity to industry, then identifying the knowledge road blocks for research programmes to eventually get it into a working package for pastoral farming.......or, forgetting it as yet in the too hard basket. However this does not prevent individual farmers from trying to influence lamb gender by simply trying something and seeing if it can be repeated the following year. Best wishes to all who try. [/QUOTE]
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