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Trends In Reproductive Performance In Southeastern Holstein And Jersey DHI Herds.

S. P. Washburn, W. Silvia, C. Brown, B. T. McDaniel, A. McAllister
Published 2002 · Biology, Medicine

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Trends in average days open and services per conception from 1976 to 1999 were examined in 532 Holstein and 29 Jersey herds from 10 Southeastern states. Three-year averages for eight intervals (time) were calculated (first: 1976 to 1978; eighth: 1997 to 1999). Milk, fat, fat-corrected milk, and number of cows increased across time. Herds of both breeds had linear, quadratic, and cubic effects of time on days open and services per conception. For 1976 to 1978, respective averages of days open and services per conception were 122 +/- 2.8 d and 1.91 +/- 0.08 for Jerseys, 124 +/- 0.7 d and 1.91 +/- 0.02 for Holsteins. Days open increased nonlinearly to 152 +/- 2.8 d for Jerseys and 168 +/- 0.7 d for Holsteins by 1997 to 1999, resulting in a breed x time interaction. Services per conception also increased nonlinearly, reaching 2.94 +/- 0.04 services for both breeds in 1994 to 1996, changing only slightly after 1996. Fat-corrected milk and number of cows had small but significant effects. Five subregions (one to three states) differed in mean days open and services per conception, but changes in those measures across time among subregions were similar. Days to first service increased by 16 (Holsteins) and 18 d (Jerseys) during the last five 3-yr periods, associated with increasing days open. Estrus detection rates generally declined from 1985 to 1999, associated inversely with services per conception. Reduced reproductive performance in Southeastern dairy herds is of concern. Multiple strategies are needed to attenuate further declines.
This paper references
Interactions of high milk yield and reproductive performance in dairy cows.
R. Nebel (1993)
Reproduction, mastitis, and body condition of seasonally calved Holstein and Jersey cows in confinement or pasture systems.
S. P. Washburn (2002)
The relationship between genetic merit for yield and live weight, condition score, and energy balance of spring calving Holstein Friesian dairy cows on grass based systems of milk production.
F. Buckley (2000)
Present and future uses of selection index methodology in dairy cattle.
J. Philipsson (1994)
Factors affecting days open, gestation length, and calving interval in Florida dairy cattle.
H. M. Silva (1992)
Review of Holsteinization on Intensive Pastoral Dairy Farming in New Zealand
B. L. Harris (2001)
Reproductive traits of Holsteins and Jerseys. Effects of age, milk yield, and clinical abnormalities on involution of cervix and uterus, ovulation, estrous cycles, detection of estrus, conception rate, and days open.
Francisco Aloízio Fonseca (1983)
An Analysis of Ovarian Dysfunction in High Yielding Dairy Cows After Calving Based on Progesterone Profiles
G. Opsomer (1998)
Genetic parameters for reproductive traits of Holstein cattle in California and Minnesota.
K. Weigel (2000)
Physiological and genetic differences between low and high index dairy cows
M. Lucy (2001)
Factors affecting length of herdlife in purebred and crossbred dairy cattle.
P. Hocking (1988)
Secondary traits: sire evaluation and the reproductive complex.
A. Freeman (1984)
Reproductive loss in high-producing dairy cattle: where will it end?
M. Lucy (2001)
Use of bovine somatotropin in lactating dairy cows receiving timed artificial insemination.
F. Moreira (2000)
The incorporation of fertility indices in genetic improvement programmes
J. Pryce (2001)
Relationship of yield during early lactation and days open during current lactation with 305-day yield.
J. Lee (1997)
The Effect of Extended Calving Intervals in High Lactating Cows on Milk Production and Profitability
R. Arbel (2001)
The use of milk progesterone profiles to characterise components of subfertility in milked dairy cows.
G. Lamming (1998)

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Y. Chorfi (2007)
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Modifying the double-Ovsynch protocol to include human chorionic gonadotropin to synchronize ovulation in dairy cattle.
J A Binversie (2012)
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Using a family-based structure to detect the effects of genomic inbreeding on embryo viability in Holstein cattle.
D. W. Bjelland (2015)
Determinants of reproductive performance of dairy cows in commercial herds in Australia
John Morton (2004)
Milk ketone bodies assessment in a local italian cow breed (Modenese) vs. Holstein and characterization of its physiological, reproductive and productive performances.
G. Curone (2016)
Supplementation with Estradiol-17β Before the Last Gonadotropin-Releasing Hormone Injection of the Ovsynch Protocol in Lactating Dairy Cows
A. H. Souza (2007)
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N. Kadri (2014)
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Leonardo Fields Melo (2016)
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Maryam Ansari-Lari (2010)
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H. Norman (2007)
Effect of feeding flax or linseed meal on progesterone clearance rate in ovariectomized ewes.
Collin W Galbreath (2008)
Odgerel O (2016)
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