THE ROYAL GUERNSEY AGRICULTURAL AND HORTICULTURAL SOCIETY REPORT TO THE 15th WORLD GUERNSEY CONFERENCE

THE GUERNSEY HERD 16 HERDS - 1,601COWS 546 Lactation 1 315 Lactation 2 258 Lactation 3 209 Lactation 4 273Lactation 5+

THE ISLAND HERD 1,097 HEIFERS 468 < 1 Year 457 1-2 Years 172 2 Years+

THE ISLAND HERD Registrations 2015 Pedigree Female 508 Pedigree Male 26

THE ISLAND HERD AVERAGE 305 DAY PRODUCTION 2015 840 COWS 6,303 kgs Milk 324 kgs 5.13%Fat 227 kgs 3.60%Protein 296 HEIFERS 5,714 kgs Milk 291 kgs 5.09%Fat 205 kgs 3.59%Protein Calving Interval has fallen from 423 days in 2012 to 417 days in 2015, an average of 1.5 days per year

LEADING PRODUCTION HERD Alderney Herd, Mr. & Mrs. M Cox 21 Cows 7,287 kgs Milk 378 kgs 5.19%Fat 263 kgs 3.52%Protein 5 Heifers 7,035 kgs Milk 317 kgs 4.51%Fat 248 kgs 3.52%Protein

LEADING ANIMAL for Fat + Protein owned by Mr LEADING ANIMAL for Fat + Protein owned by Mr. Frank Le Cheminant ADAMSONS HETTIE 3 5th. Lactation 10,863 kgs Milk, 593 kgs 5.45% Fat 366kgs 3.37%Protein 958 kgs Fat + Protein

OUTSTANDING HERD Block calving with maximum use of grazed grass Les Jaonnets Herd owned by Mr M Bray 86 Cows 7,141 kgs Milk 373 kgs 5.23% Fat 260 kgs 3.65% Protein 22 Heifers 5,833 kgs Milk 308 kgs 5.28% Fat 214 kgs 3.67% Protein Les Jaonnets Herd

The Guernsey Global Breeding Programme RGA&HS committed to the programme 68% of registrations sired by GGBP Bulls Adoption of New PLI as primary sorting Index Smaller, longer living cows should increase PROFIT more than chasing maximum yield

Heifers sired by GGBP Bulls have better evaluations those by other bulls

Cows sired by GGBP Bulls have outperformed those by other bulls

What our breeders expect of GGBP in the future Improved Female Fertility Diversity of pedigree Healthy cows of moderate stature Further improvement in functional type Cows that are easy to manage

What we are doing about this Use of Profitable Lifetime Index Selection using PLI will increase the rate of genetic improvement in every trait except Milk Yield which will improve a little more slowly. However selecting for smaller, longer lived cows is expected to increase PROFITABILITY

What we are doing about this DIVERSITY OF PEDIGREE Inbreeding Rate had doubled from 2002-2012 Moved to Optimum Contribution Model (EVA) Use of EVA delivers matings of highest Genetic Merit (PLI) for lowest Inbreeding coefficient Increase in Inbreeding reduced to 0.04%p.a. Inbreeding in Island population is 4.2%

PLI +£251 GMI +246 AVERAGE ETA Milk +178kgs Dairy Strength +0.4 WE CURRENTLY HAVE 42 PLANNED MATINGS PROPOSED BY EVA TO SUPPLY 8 BULLS PER YEAR. ALL DAMS HAVE SCORED A MINIMUM OF VG 85 AVERAGE ETA Milk +178kgs Fat  +10.4kgs +0.06% Prot +6.0kgs +0.02% SCC -7 LifeSpan +0.2 Dairy Strength +0.4 Locomotion +0.8 Feet & Legs +1.0 Mammary +1.1 Fertility Index +3.0 PLI +£251 GMI +246

GGBP - The Future Changes in UK regulation are making it impossible for us to export semen to UK, Europe and USA. We will continue to seek bulls of unrelated pedigree from other populations provided that they meet our selection criteria.

GENOMICS Participation in G2F We intend to build a genomic library of all Island cattle beginning with those present in 2014. Females genotyped with 7k chip Males genotyped with 150k chip All calves sampled by ear tissue 2,100 Island Animals already sampled We hope that these will be supplemented by data from other populations. Reliability of GEBV proofs will increase as we accumulate more records.

AGRICULTURAL & HORTICULTURAL SOCIETY THE ROYAL GUERNSEY AGRICULTURAL & HORTICULTURAL SOCIETY COMMITTED TO: GGBP CARE OF THE ENVIRONMENT THE GUERNSEY BREED EXCELLENCE IN ALL WE DO

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