Henderson Ayres

Sao Paulo, SP, Brazil

Last Updated: 09/26/2026

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Found 23 publications

hCG is not an alternative to eCG in the TAI protocol in Bos indicus cows, but it increases the efficiency of TAI protocols in cows that do not show estrus.

hCG is not an alternative to eCG in the TAI protocol in Bos indicus cows, but it increases the efficiency of TAI protocols in cows that do not show estrus.

Journal: Animal reproduction science
Published: November 25, 2025

Is estradiol valerate an alternative to estradiol benzoate in promoting the synchronization of ovulation and timed artificial insemination in suckled Bos indicus beef cows?

Is estradiol valerate an alternative to estradiol benzoate in promoting the synchronization of ovulation and timed artificial insemination in suckled Bos indicus beef cows?

Journal: Theriogenology
Published: November 14, 2023

Efficacy of prepartum vaccination against neonatal calf diarrhea in Nelore dams as a prevention measure.

Efficacy of prepartum vaccination against neonatal calf diarrhea in Nelore dams as a prevention measure.

Journal: BMC veterinary research
Published: June 08, 2021

Identification, molecular characterization and factors associated with occurrences of Cryptosporidium spp. in calves on dairy farms in Brazil.

Identification, molecular characterization and factors associated with occurrences of Cryptosporidium spp. in calves on dairy farms in Brazil.

Journal: Revista brasileira de parasitologia veterinaria = Brazilian journal of veterinary parasitology : Orgao Oficial do Colegio Brasileiro de Parasitologia Veterinaria
Published: May 26, 2021

Effects of progesterone concentrations and follicular wave during growth of the ovulatory follicle on conceptus and endometrial transcriptome in dairy cows.

Effects of progesterone concentrations and follicular wave during growth of the ovulatory follicle on conceptus and endometrial transcriptome in dairy cows.

Journal: Journal of dairy science
Published: January 20, 2021

Prevalence and risk factors for agents causing diarrhea (Coronavirus, Rotavirus, Cryptosporidium spp., Eimeria spp., and nematodes helminthes) according to age in dairy calves from Brazil.

Prevalence and risk factors for agents causing diarrhea (Coronavirus, Rotavirus, Cryptosporidium spp., Eimeria spp., and nematodes helminthes) according to age in dairy calves from Brazil.

Journal: Tropical animal health and production
Published: July 23, 2019

Longitudinal surveillance of rotavirus A genotypes circulating in a high milk yield dairy cattle herd after the introduction of a rotavirus vaccine.

Longitudinal surveillance of rotavirus A genotypes circulating in a high milk yield dairy cattle herd after the introduction of a rotavirus vaccine.

Journal: Veterinary microbiology
Published: November 23, 2018

Cross-sectional study of the G and P genotypes of rotavirus A field strains circulating in regularly vaccinated dairy cattle herds.

Cross-sectional study of the G and P genotypes of rotavirus A field strains circulating in regularly vaccinated dairy cattle herds.

Journal: Tropical animal health and production
Published: October 04, 2018

Follicular wave emergence in Santa Inês ewes subjected to long-term, progesterone-based estrous synchronization protocols at different times of the year.

Follicular wave emergence in Santa Inês ewes subjected to long-term, progesterone-based estrous synchronization protocols at different times of the year.

Journal: Animal reproduction science
Published: April 27, 2016

Inducing ovulation with oestradiol cypionate allows flexibility in the timing of insemination and removes the need for gonadotrophin-releasing hormone in timed AI protocols for dairy cows.

Inducing ovulation with oestradiol cypionate allows flexibility in the timing of insemination and removes the need for gonadotrophin-releasing hormone in timed AI protocols for dairy cows.

Journal: Reproduction, fertility, and development
Published: July 07, 2015

Effects of season and ovarian status on the outcome of long-term progesterone-based estrus synchronization protocols and ovulatory follicle development in Santa Inês ewes under subtropical conditions.

Effects of season and ovarian status on the outcome of long-term progesterone-based estrus synchronization protocols and ovulatory follicle development in Santa Inês ewes under subtropical conditions.

Journal: Theriogenology
Published: May 12, 2015

A comparison of two different esters of estradiol for the induction of ovulation in an estradiol plus progestin-based timed artificial insemination protocol for suckled Bos indicus beef cows.

A comparison of two different esters of estradiol for the induction of ovulation in an estradiol plus progestin-based timed artificial insemination protocol for suckled Bos indicus beef cows.

Journal: Animal reproduction science
Published: December 12, 2013
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Last Updated: 09/26/2026