'Cow fertility' diaporamas de présentation

Selection for Fertility in Dairy Cattle

Selection for Fertility in Dairy Cattle. Factors Affecting Fertility. Environment and management Season, region, herd, age, milk yield Calving difficulty, twins, mastitis, health Estrus detection and / or synchronization Voluntary waiting period Genes of cow (Daughter Pregnancy Rate)

858 views • 44 slides

Selection for Fertility in Dairy Cattle

Selection for Fertility in Dairy Cattle. Factors Affecting Fertility. Environment and management Season, region, herd, age, milk yield Calving difficulty, twins, mastitis, health Estrus detection and / or synchronization Voluntary waiting period Genes of cow (Daughter Pregnancy Rate)

662 views • 44 slides

Selection for Fertility in Dairy Cattle

Selection for Fertility in Dairy Cattle. Factors Affecting Fertility. Environment and management Season, region, herd, age, milk yield Estrus detection and / or synchronization Voluntary waiting period Fertility of bull (ERCR in USA) Genes of cow (Dau. Pregnancy Rate)

459 views • 25 slides

Longevity and Fertility

339 views • 21 slides

Genetic Evaluations for Fitness and Fertility in the US and Other Nations

213 views • 21 slides

Source:

Purchase Influence. Animal welfare is a stronger driver of purchase influence than other issues, particularly for ethical . Influence of ethical factors on customer behaviour (Based on respondents stating attribute is important to them) .

390 views • 19 slides

Genetic Evaluation of Cow Fertility expressed as Pregnancy Rate

Genetic Evaluation of Cow Fertility expressed as Pregnancy Rate. Factors Affecting Fertility. Service bull Sperm motility, abnormality, etc. measured by AI companies ERCR ratings from DRMS@Raleigh Environment and genes of cow Interaction of bull and cow Lethal recessives, inbreeding.

268 views • 16 slides

Correlations Among Measures of Dairy Cattle Fertility and Longevity

Correlations Among Measures of Dairy Cattle Fertility and Longevity. Longevity & Fertility Investigation. 1,062,791 c ows born 1992-1994 Daughters of 3080 Holstein sires Progeny tested bulls with > 60 daughters Older bulls to provide ties and relationships Compare two measures of longevity

423 views • 15 slides

Definition of Traits and Comparison of Models for Cow Fertility

168 views • 12 slides

Cow Fertility and Effect on Longevity

Cow Fertility and Effect on Longevity. PAUL VANRADEN Animal Improvement Programs Laboratory Agricultural Research Service, USDA, Beltsville, MD paul@aipl.arsusda.gov. Fertility / Longevity Data. Cows born 1992-1994 Cows sold for dairy purposes excluded 1,062,791 cows remained

323 views • 8 slides

Cow Fertility and Effect on Longevity

Cow Fertility and Effect on Longevity. PAUL VANRADEN Animal Improvement Programs Laboratory Agricultural Research Service, USDA, Beltsville, MD paul@aipl.arsusda.gov. Fertility / Longevity Data. Cows born 1992-1994 Cows sold for dairy purposes excluded 1,062,791 cows remained

302 views • 8 slides

Measures of Fertility: Heritabilities and Genetic Correlations

Measures of Fertility: Heritabilities and Genetic Correlations. Paul VanRaden, Duane Norman, and Bob Miller Animal Improvement Programs Laboratory ARS, USDA, Beltsville, MD 20705-2350 paul@aipl.arsusda.gov. Analysis of Fertility Data.

238 views • 7 slides