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Stackyard News Sep 07

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livestock genetics


New Semex UK Holstein Sires Launched

Two new bulls entering the Semex UK portfolio, Blue-Haven-Ltd Brick and Karona Bonair, are demonstrating the business’s growing strength in meeting the needs of large-scale producers with ever-increasing herd sizes, as well as pedigree breeders.

Hilltop Brick heifer

Hilltop Brick heifer

Brick is a new graduate from Semex’s Premier Programme in the USA, which has yielded previous high-ranking sires such as Stouder Morty, R-E-W Buckeye and Diamond-Oak Frosty, and delivers the functional traits the modern dairyman is looking for. Brick is a son of Semex sire Outside – one of the most consistent sires ever used in the UK, breeding cows that thrive in the larger herds now common here – and is backed by four generations of excellent dams.

“Commercial breeders will see Brick as a very exciting proposition because he is definitely his sire’s son carrying many of Outside’s proven traits, promising cows with strength, longevity, high yield and quality,” said Willie Tait, Technical Manager Semex UK. “Like Outside, Brick has a high US Productive Life score of +3.5 and a similar breeding profile. He also excels for foot structure with a UK score of +2.42 for foot angle and daughters that track extremely well on their rear legs, are moderately tall with balanced frames, excellent width of chest, deep bodies and well-shaped rumps.”

Brick heifers are built for intensive milking and repeat lactations, he continued: ”Udder formation is very strong and utility-led, with very shapely udders with high, wide rear and fore attachments, deep udder clefts, great teat size and placement and a silky udder texture. Brick’s UK production figures of +374kg Milk, +20.7kg Fat (+0.08%), and +10.7kg Protein (-0.02%), together with +2.65 Type Merit, make him an exciting prospect for a wide range of systems.”

Provetaz Bonair Sidney

Provetaz Bonair Sidney

“We also have a terrific pedigree option in Comestar Lheros son, Karona Bonair, which entered the Canadian LPI charts at No 12, with +15 Conformation, +11 Mammary System and +10 Feet and Legs,” continued Willie Tait.

“A combination of the Comestar Laurie Sheik family and one of Canada's strongest maternal lines – Bonair is from arguably the best Emerson daughter in Canada, Karona Emerson Bonnie EX-92-CAN 3* which has five VG daughters to date – shows through in Bonair's high ranking in Canada. Semex field staff in Quebec have seen 60 daughters to date and report that Bonair daughters are dairy with wide chests, hard tops and wide rumps with a good slope. Their udders have a silky texture and lots of veination while legs are very well set from both side and rear view. Bonair will breed milky cows with high fat and protein yields and which score highly for milking temperament and speed.

“This bull has built-in staying power, with the ability to breed long-lasting, profitable cows - the kind that is returning real dividends to producers,” he concluded.

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link Semex’s Solution to Finding the Perfect Mate

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