R L Ax
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Explore the profile of R L Ax including associated specialties, affiliations and a list of published articles.
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82
Citations
279
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Recent Articles
1.
Cowan C, Dentine M, Ax R, Schuler L
Theor Appl Genet
. 2013 Nov;
79(5):577-82.
PMID: 24226569
Digestion of genomic DNA with the restriction endonuclease Avail disclosed a probable insertion deletion of approximately 200 base pairs (bp) near the prolactin gene. Two alleles were apparent as three...
2.
Chebel R, Al-Hassan M, Fricke P, Santos J, LIMA J, Martel C, et al.
J Dairy Sci
. 2010 Feb;
93(3):922-31.
PMID: 20172212
Our objective was to determine the effect of exogenous progesterone (P4) during a timed artificial insemination (TAI) protocol on pregnancies per AI (P/AI) in dairy cows not previously detected in...
3.
Ax R, Armbrust S, Tappan R, Gilbert G, Oyarzo J, Bellin M, et al.
Anim Reprod Sci
. 2004 Nov;
85(1-2):71-80.
PMID: 15556310
The use of peripubertal donors in embryo transfer (ET) programs presents significant opportunity to accelerate genetic gain in domestic livestock by reducing the generation interval. These studies were designed to...
4.
Physiological responses in thermal stressed Jersey cows subjected to different management strategies
Keister Z, Moss K, Zhang H, Teegerstrom T, Edling R, Collier R, et al.
J Dairy Sci
. 2003 Jan;
85(12):3217-24.
PMID: 12512595
The effects of cooling and recombinant bovine somatotropin (rbST) on milk yield, reproductive performance, and health of Jersey cattle during summer thermal stress were measured for 2 yr. Cows were...
5.
Samuelson D, DeNise S, Roffler R, Ax R, Armstrong D, Romagnolo D
J Dairy Sci
. 2001 May;
84(4):917-28.
PMID: 11352168
In this study, we evaluated the effects of dietary supplementation at two stages of lactation with various levels of Mepron85 (M85) and M85 plus DL-methionine (DL-Met) on milk production and...
6.
McCauley T, Zhang H, Bellin M, Ax R
Mol Reprod Dev
. 2001 Feb;
58(3):336-41.
PMID: 11170275
Presence or absence of three distinct bovine seminal heparin-binding proteins (21-31 kDa) recognized in sperm extracts by a monoclonal antibody, M1, is a diagnostic indicator of fertility differences among bulls...
7.
Enns R, Armstrong D, Ax R
J Dairy Sci
. 2000 Jul;
83(7):1451-5.
PMID: 10908052
Some dairy producers resist using bovine somatotropin (bST) beginning at 9 wk postpartum because of the concern that fertility is compromised. We conducted a trial with a total of 205...
8.
Sprott L, HARRIS M, Forrest D, Young J, Zhang H, Oyarzo J, et al.
J Anim Sci
. 2000 Apr;
78(4):795-8.
PMID: 10784166
In this study, semen samples from 25 bulls that had passed a breeding soundness evaluation were analyzed for the presence or absence of a 31-kDa protein, known as fertility-associated antigen...
9.
Keister Z, DeNise S, Armstrong D, Ax R, Brown M
Theriogenology
. 2000 Mar;
51(8):1587-96.
PMID: 10729085
There are a number of options for hormonal management of post partum dairy cows; however, only a few studies have made direct comparisons of these programs in commercial herd settings....
10.
McCauley T, Zhang H, Bellin M, Ax R
Mol Reprod Dev
. 1999 Sep;
54(2):145-53.
PMID: 10471474
Heparin-binding proteins (HBP) recognized by a monoclonal antibody (M1) are produced by male accessory sex glands and bind to distinct regions of ejaculated bull sperm. Immunoblots of sperm proteins probed...