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A 100-Year Review: A century of dairy heifer research.

Heinrichs AJ, Zanton GI, Lascano GJ, Jones CM. Heinrichs AJ, et al. J Dairy Sci. 2017 Dec;100(12):10173-10188. doi: 10.3168/jds.2017-12998. J Dairy Sci. 2017. PMID: 29153161 Free article. Review.

The years 1917 to 2017 saw many advances in research related to the dairy heifer, and the Journal of Dairy Science currently publishes more than 20 articles per year focused on heifers. ...Research published in the Journal of Dairy Science has a …

The years 1917 to 2017 saw many advances in research related to the dairy heifer, and the Journal of Dairy Science curr …

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Review: Applications and benefits of sexed semen in dairy and beef herds.

Holden SA, Butler ST. Holden SA, et al. Animal. 2018 Jun;12(s1):s97-s103. doi: 10.1017/S1751731118000721. Epub 2018 Apr 10. Animal. 2018. PMID: 29631644 Review.

Male dairy calves increase the risk of dystocia compared with heifer calves, and as an unwanted by-product of breeding with conventional semen, they have a low economic value. ...This results in increased genetic gain in dairy herd, increased value of beef ou …

Male dairy calves increase the risk of dystocia compared with heifer calves, and as an unwanted by-product of breeding with co …

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Dairy Heifer Development and Nutrition Management.

Akins MS. Akins MS. Vet Clin North Am Food Anim Pract. 2016 Jul;32(2):303-17. doi: 10.1016/j.cvfa.2016.01.004. Epub 2016 May 6. Vet Clin North Am Food Anim Pract. 2016. PMID: 27161393 Review.

Heifer development depends on nutritional management decisions throughout all growing phases. Optimizing costs to raise heifers improves profitability of dairy farms. Feed costs for heifers make up 50% of heifer costs. ...

Heifer development depends on nutritional management decisions throughout all growing phases. Optimizing costs to raise heifers …

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Innovative look at dairy heifer rearing: Effect of prenatal and post-natal environment on later performance.

Van Eetvelde M, Opsomer G. Van Eetvelde M, et al. Reprod Domest Anim. 2017 Aug;52 Suppl 3:30-36. doi: 10.1111/rda.13019. Reprod Domest Anim. 2017. PMID: 28815846 Review.

As heifer rearing is a costly investment, dairy farmers have been stimulated to maximize early growth of their calves, mainly by enhanced liquid feeding. ...Hence, we hypothesize that, by applying programs of accelerated growth, our current management system accentu …

As heifer rearing is a costly investment, dairy farmers have been stimulated to maximize early growth of their calves, mainly …

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Preweaned heifer management on US dairy operations: Part I. Descriptive characteristics of preweaned heifer raising practices.

Urie NJ, Lombard JE, Shivley CB, Kopral CA, Adams AE, Earleywine TJ, Olson JD, Garry FB. Urie NJ, et al. J Dairy Sci. 2018 Oct;101(10):9168-9184. doi: 10.3168/jds.2017-14010. Epub 2018 Jun 13. J Dairy Sci. 2018. PMID: 29908815 Free PMC article.

This study included 104 dairy operations in 13 states that participated in the National Animal Health Monitoring System's Dairy 2014 calf component study. This 18-mo longitudinal study focused on dairy heifer calves from birth to weaning, and da …

This study included 104 dairy operations in 13 states that participated in the National Animal Health Monitoring System's D …

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Proposed dairy calf birth certificate data and death loss categorization scheme.

Lombard JE, Garry FB, Urie NJ, McGuirk SM, Godden SM, Sterner K, Earleywine TJ, Catherman D, Maas J. Lombard JE, et al. J Dairy Sci. 2019 May;102(5):4704-4712. doi: 10.3168/jds.2018-15728. Epub 2019 Mar 7. J Dairy Sci. 2019. PMID: 30852006

The majority of dairy heifer calves in the United States are destined to be dairy replacements. ...An additional 6% of dairy heifers die during the preweaning period. Death loss in dairy calves is primarily due to stillbirths, failure to …

The majority of dairy heifer calves in the United States are destined to be dairy replacements. ...An additional 6% of …

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Pure-breeding with sexed semen and crossbreeding with semen of double-muscled sires to improve beef production from dairy herds: Factors affecting heifer and cow fertility and the sex ratio.

Bittante G, Negrini R, Bergamaschi M, Cecchinato A, Toledo-Alvarado H. Bittante G, et al. J Dairy Sci. 2020 Jun;103(6):5246-5257. doi: 10.3168/jds.2019-17932. Epub 2020 Apr 16. J Dairy Sci. 2020. PMID: 32307168

Net profit first depends on changes in the farm's overall fertility rate. The objective of this study was to analyze the conception rate in herds using a combination of conventional dairy semen (for pure- and crossbreeding), X-sorted dairy semen (to produce p …

Net profit first depends on changes in the farm's overall fertility rate. The objective of this study was to analyze the conception r …

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Heifer fertility and carry over consequences for life time production in dairy and beef cattle.

Wathes DC, Pollott GE, Johnson KF, Richardson H, Cooke JS. Wathes DC, et al. Animal. 2014 May;8 Suppl 1:91-104. doi: 10.1017/S1751731114000755. Epub 2014 Apr 3. Animal. 2014. PMID: 24698359 Review.

This is rarely achieved in either dairy or beef herds, with average AFC for dairy herds usually between 26 and 30 months. ...Cattle reach puberty at a fairly consistent, but breed-dependent, proportion of mature BW. Heifer fertility is a critical component of …

This is rarely achieved in either dairy or beef herds, with average AFC for dairy herds usually between 26 and 30 months. ...C …

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Symposium review: Why revisit dairy cattle productive lifespan?

De Vries A. De Vries A. J Dairy Sci. 2020 Apr;103(4):3838-3845. doi: 10.3168/jds.2019-17361. Epub 2020 Feb 20. J Dairy Sci. 2020. PMID: 32089299 Review.

Improvements in reproductive efficiency and the availability of sexed semen are leading to an abundance of dairy heifers on many dairy farms, which often results in shorter productive lifespans in herds of fixed sizes. There is also a growing interest in the …

Improvements in reproductive efficiency and the availability of sexed semen are leading to an abundance of dairy heifers on ma …

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The optimal number of heifer calves to be reared as dairy replacements.

Mohd Nor N, Steeneveld W, Mourits MC, Hogeveen H. Mohd Nor N, et al. J Dairy Sci. 2015 Feb;98(2):861-71. doi: 10.3168/jds.2014-8329. Epub 2014 Dec 12. J Dairy Sci. 2015. PMID: 25497803 Free article.

Dairy farmers often keep almost all their newborn heifer calves despite the high cost of rearing. ...The dairy herd unit and rearing unit were linked by the number of replacement heifers and culled dairy cows. ...

Dairy farmers often keep almost all their newborn heifer calves despite the high cost of rearing. ...The dairy herd uni …

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