The trend of cow physiques coming from multiple generations of highly-ranked Genomic sires may be capable of marginally superior first and second lactations (when fed an energy-dense ration based on grain corn and oilseeds) but a trend of progressive physical failure beginning in third lactation aligns with the sales pitch for accelerating the generations in your herd—keeping a “young” herd from “current” ranked Genomic sires masks the lack of maturability these tight- hipped, short-necked, heavy-shouldered, posty-legged cows typically express in production.
A tight-hocked cow who starts out standing on her toes develops very stiff joints as her legs and feet cope with her maturing weight, leading to early onset of arthritis. The shallow flank, tight hips and coarse legs squeeze udders forward, with rear udders never developing full capacity – none of these physical developments will aid a cow in fulfilling her mature milking capability.
Among desired qualities: straight topline, level loin, maintains alignment of interior organs.
Level ridge to rump, moderate interior slope to pelvis, wide thurls centrally placed, open pins.
Full rear udder. Ample teats centrally placed under quarters, level udder floor. Soft texture.
Deep, well-sprung rib, triangulated loin from shoulder back to broad hips, elastic fore udder.
Sturdy front end—even stance on front feet, width in chest. Deep chest—for full heart.
No comments:
Post a Comment