Excretion Patterns of Fecal Progestagens, Androgen and Estrogens During Pregnancy, Parturition and Postpartum in Okapi (Okapia johnstoni)

Kusuda, Satoshi; Morikaku, Koki; Kawada, Kenichi; Ishiwada, Kenji; Doi, Osamu

doi:10.1262/jrd.18041

Cited by 28 publications

(16 citation statements)

References 15 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…For the assay of serum progestin, serum samples were extracted twice with ethyl ether. Fecal progestin was extracted using a methanol extraction method [17,18]. Briefly, frozen fecal samples were lyo- philized for approximately 48 h and then pulverized by hand to separate the fecal powder from the fibrous material.…”

Section: Determination Of Ovarian Cyclementioning

confidence: 99%

Relationship Between Body Temperature and Ovarian Cycle in Asian and African Elephants

Kusuda

Wakimoto

Sato

et al. 2007

Journal of Reproduction and Development

Self Cite

View full text Add to dashboard Cite

Abstract. The aim of the present study was to investigate whether changes in body temperature are related to the ovarian cycle in elephants. Rectal, tongue or fecal temperature was measured for 2 Asian and 5 African elephants using an electric thermometer. Evaluation of ovarian cycles was based on the changes in serum or fecal progestin. The mean ± SD values of the rectal, tongue, and fecal temperatures were 36.3 ± 0.3 (2 Asian), 36.2 ± 0.5 (1 African) and 36.5 ± 0.3 C (4 African), respectively; the fecal temperature was the highest of the 3 temperatures (P<0.01). The longitudinal changes in body temperatures correlated with the ovarian cycle, with higher temperatures occurring during the luteal phase. The fecal temperatures of one acyclic African elephant did not change cyclically. These results suggest that measurement of body temperature can be used to easily evaluate the ovarian cyclicity of an individual animal, although it might not be able to determine the ovarian cycle length. Key words: Fecal temperature, Ovarian cycle, Progesterone, Rectal temperature, Tongue temperature (J. Reprod. Dev. 53: [1099][1100][1101][1102][1103][1104][1105] 2007) he body temperature and thermoregulatory behavior of the elephant have been studied for many years [1,2]. The methods used to measure the body temperatures of elephants include insertion of a clinical thermometer into the rectum (rectum temperature), insertion of a clinical thermometer into feces immediately after defecation (fecal temperature) and direct measurement of the temperature of urine midstream during urination (urinary temperature) [1,3]. It has been believed that measurement of the urine temperature is suitable for body temperature measurement because a large amount of urine is stored deep within the elephant's body [1]. However, measurement of the fecal temperature is a simple and safe method for large mammals such as the elephant [3]. It has been reported that the fecal temperature well reflects an elephant's rectal temperature and that the values are very similar [1]. The normal range of the rectal temperature of Asian (Elephas maximus) and African elephants (Loxodonta africana) is 36 to 37 C [4,5], and a fever of 38 C is considered significant [5].In female humans and chimpanzees (Pan troglo-

show abstract

Section: Determination Of Ovarian Cyclementioning

confidence: 99%

Relationship Between Body Temperature and Ovarian Cycle in Asian and African Elephants

Kusuda

Wakimoto

Sato

et al. 2007

Journal of Reproduction and Development

Self Cite

View full text Add to dashboard Cite

show abstract

“…Supraorbital comb and testosterone in male ptarmigan [14]. Fecal T concentrations were assayed by an enzyme immunoassay, as reported previously [14].…”

Section: --43mentioning

confidence: 99%

“…Fecal T concentrations were assayed by an enzyme immunoassay, as reported previously [14]. The T values for No.…”

Section: --43mentioning

confidence: 99%

Seasonal Changes in Supraorbital Comb Characteristics and Fecal Testosterone Levels in Captive Male Svalbard Rock Ptarmigans (<i>Lagopus muta hyperboreus</i>)

Yamamoto

Kusuda

Horiguchi

et al. 2016

Jpn. J. Zoo Wildl. Med.

Self Cite

View full text Add to dashboard Cite

The comb is a good indicator of physical condition in male birds. We monitored the seasonal changes in supraorbital comb characteristics with visual assessments and fecal testosterone concentrations by enzyme immunoassay in three captive male Svalbard rock ptarmigans (Lagopus muta hyperboreus). Although there were interindividual variations, the size and redness increased from February to August; i.e., before and during breeding season. The fecal testosterone levels increased markedly between May and June, and declined sharply from late June. The color simultaneously changed from deep to pale red but size was kept until testosterone concentrations fell to baseline. We suggest that changes occurring in supraorbital comb, especially its redness, reflect testicular activity and may be useful indicators for captive breeding of this species.

show abstract

“…Hormone levels have been measured in materials other than blood, such as feces, milk, saliva and urine [9][10][11][12][13][14]. Of these sources, feces can be collected conveniently and noninvasively, and hormone levels in feces from a wide variety of wild animals have been investigated to investigate their reproductive functions [15][16][17][18][19][20].…”

mentioning

confidence: 99%

Plasma and Fecal Sex Steroid Hormone Profiles During the Estrous Cycle in a Japanese Serow (Capricornis crispus)

Togashi

Tsujimoto²,

Yamauchi

et al. 2009

Journal of Reproduction and Development

View full text Add to dashboard Cite

Abstract. We aimed to determine plasma progesterone and estradiol-17β concentrations, as well as fecal progesterone concentrations during the estrous cycle in a female 8-year-old Japanese serow (Capricornis crispus). The step frequencies during the night were recorded by a pedometer attached to the serow's hind leg from October to the following June. Estrous behavior was also monitored during the day. Blood samples were taken once a day from 8 February to 10 March from an indwelling catheter placed in the jugular vein. Fecal samples were taken once or twice a day from 1 January to 29 April. Plasma and fecal progesterone and plasma estradiol concentrations were determined using timeresolved fluoroimmunoassays. The estrus behavior observed lasted for 2-3 days. Peak step frequencies were recorded between November and April, at intervals of 17-19 days. Plasma progesterone concentrations remained elevated (1-7.7 ng/ml) for 12 days during non-estrus, and plasma estradiol concentrations were highest when the peak step frequency and estrous behavior were observed.Step frequency increased around the times fecal progesterone levels fell to basal levels. Progesterone concentrations in feces were significantly correlated with those in sera. Thus, measurement of fecal progesterone concentrations might be useful for monitoring the reproductive status of the Japanese serow.

show abstract

Excretion Patterns of Fecal Progestagens, Androgen and Estrogens During Pregnancy, Parturition and Postpartum in Okapi (Okapia johnstoni)

Cited by 28 publications

References 15 publications

Relationship Between Body Temperature and Ovarian Cycle in Asian and African Elephants

Relationship Between Body Temperature and Ovarian Cycle in Asian and African Elephants

Seasonal Changes in Supraorbital Comb Characteristics and Fecal Testosterone Levels in Captive Male Svalbard Rock Ptarmigans (<i>Lagopus muta hyperboreus</i>)

Plasma and Fecal Sex Steroid Hormone Profiles During the Estrous Cycle in a Japanese Serow (Capricornis crispus)

Contact Info

Product

Resources

About