Faecal chemical cues in water buffalo that facilitate estrus detection

Karthikeyan, K.; Muniasamy, Samuthirapandi; Sankarganesh, Devaraj; Achiraman, Shanmugam; Saravanakumar, V. Ramesh; Archunan, ‪Govindaraju

doi:10.1016/j.anireprosci.2013.02.017

Cited by 38 publications

(26 citation statements)

References 17 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…4-Methylphenol is a common component in the urine of many mammals. 4-Methylphenol’s effect on behavior has been thoroughly researched in many animal species Bubalus bubalis 59 ; Alces alces 60 ; Glossina spp. 61–63 ; Stomoxys calcitrans 64 ; Equus caballus 65, 66 .…”

Section: Resultsmentioning

confidence: 99%

“…61–63 ; Stomoxys calcitrans 64 ; Equus caballus 65, 66 . It plays a primary role in signifying estrus status in Equus caballus and Bubalus bubalis 59 and sexual receptivity in male Equus caballus 65 . 4-Methylphenol is a ubiquitous compound, found in a plethora of animal scent-markings.…”

Section: Resultsmentioning

confidence: 99%

“…Three out of the top five compounds with the highest surrogate odor activity values in lion MF (4-methylphenol, nonanal, and dimethyl disulfide) were also the compounds with most researched olfactory functions and animal behavioral studies 59–66, 78–89 (see Supplementary Table S3). Their high odor intensity in lion MF could be revealing their importance in lion communication.…”

Section: Resultsmentioning

confidence: 99%

See 2 more Smart Citations

Characterizing the scent and chemical composition of Panthera leo marking fluid using solid-phase microextraction and multidimensional gas chromatography–mass spectrometry-olfactometry

Soso

Kozieł

2017

Sci Rep

View full text Add to dashboard Cite

Lions (Panthera leo) use chemical signaling to indicate health, reproductive status, and territorial ownership. To date, no study has reported on both scent and composition of marking fluid (MF) from P. leo. The objectives of this study were to: 1) develop a novel method for simultaneous chemical and scent identification of lion MF in its totality (urine + MF), 2) identify characteristic odorants responsible for the overall scent of MF as perceived by human panelists, and 3) compare the existing library of known odorous compounds characterized as eliciting behaviors in animals in order to understand potential functionality in lion behavior. Solid-phase microextraction and simultaneous chemical-sensory analyses with multidimensional gas-chromatography-mass spectrometry-olfactometry improved separating, isolating, and identifying mixed (MF, urine) compounds versus solvent-based extraction and chemical analyses. 2,5-Dimethylpyrazine, 4-methylphenol, and 3-methylcyclopentanone were isolated and identified as the compounds responsible for the characteristic odor of lion MF. Twenty-eight volatile organic compounds (VOCs) emitted from MF were identified, adding a new list of compounds previously unidentified in lion urine. New chemicals were identified in nine compound groups: ketones, aldehydes, amines, alcohols, aromatics, sulfur-containing compounds, phenyls, phenols, and volatile fatty acids. Twenty-three VOCs are known semiochemicals that are implicated in attraction, reproduction, and alarm-signaling behaviors in other species.

show abstract

Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

See 1 more Smart Citation

Characterizing the scent and chemical composition of Panthera leo marking fluid using solid-phase microextraction and multidimensional gas chromatography–mass spectrometry-olfactometry

Soso

Kozieł

2017

Sci Rep

View full text Add to dashboard Cite

show abstract

“…; Archunan & Rajagopal ; Karthikeyan et al. ). It is unclear whether wild female dolphins indicate their oestrous cycle outwardly.…”

Section: Discussionmentioning

confidence: 99%

Mating Group Size in Dusky Dolphins (Lagenorhynchus obscurus): Costs and Benefits of Scramble Competition

2014

View full text Add to dashboard Cite

In fission–fusion social systems with scramble competition between males, multiple males join mating groups while surrounding an oestrous female. If male decisions to join a mating group have been shaped by natural selection, then there should be an optimal group size resulting from the trade‐offs between the benefits of monopolizing a female in small groups and the energy lost in defending her from rivals in large groups. Male dusky dolphins (Lagenorhynchus obscurus) off Kaikoura, New Zealand, provide a unique opportunity to assess the optimum mating group size because they join transient mating groups not confounded by foraging or predator evasion. Within aggregations of up to 1000 individuals, males search for oestrous females, encountering choices of staying with a large mating group or leaving to find a smaller group. Mating groups typically involve multiple males mating with a single female. We conducted focal follows of mating groups (N = 44) by vessel from November 2011 through January 2012. We used video and a GPS to record group size, behaviour and movement. For each group, we measured potential costs (Swim Speed, Loss of Monopolization Potential) and benefits (Copulation Rate and Duration, Energy Savings). Only Loss of Monopolization Potential was positively correlated with group size, while Energy Savings was negatively correlated. Using these two factors as utility functions, we constructed an optimality model and predicted the optimal mating group size to be seven individuals with a range of 4–11 individuals due to variance. The observed modal mating group size was five dolphins, with a range of 2–15. We compare variation in mating group currencies and sizes to past studies. We discuss potential limitations of applying optimality models to predict mating group size for socially complex and behaviourally plastic species such as dolphins.

show abstract

“…Available reports indicate that the evaluation of urinary volatiles would provide for an efficient noninvasive method to assess the estrus phase in cattle (Archunan et al, ). The pheromone compounds, p‐Cresol (4‐methyl phenol) and oleic acid (9‐octadecenoic acid) in urine (Rajanarayanan & Archunan, ) and p‐Cresol alone in faeces (Karthikeyan, Muniasamy, Sankar Ganesh, Achiraman, & Archunan, ), have been reported as estrus‐specific in buffalo. In particular, p‐Cresol, which is consistently present in more than one body exudates, has been proved to be a potential pheromone released during estrus.…”

Section: Introductionmentioning

confidence: 99%

Evaluation of pheromone‐based kit: A noninvasive approach of estrus detection in buffalo

Muthukumar

Muniasamy

Srinivasan

et al. 2018

Reprod Domestic Animals

Self Cite

View full text Add to dashboard Cite

In view of the silent nature of estrus in buffalo, a noninvasive assay kit has long been felt necessary for easy and effective estrus detection. This study was designed to detect estrus in buffalo using a kit formulated in our laboratory based on pheromone compound. Group I: Urine samples collected at estrus phase and group II: randomly collected urine samples were subjected to the test using the kit. No colour developed (i.e., positive reaction) in estrus urine after adding the kit solution. By contrast, pale and/or dark pink colour developed (i.e., negative reaction) in urine from the proestrus and diestrus buffaloes, respectively. Field evaluation of the kit in groups I and II revealed that 60.87% and 71.43% of urine samples were correctly identified as estrus and nonestrus (i.e., proestrus and diestrus), respectively. Therefore, the first of its kind estrus detection kit formulated based on urinary pheromone can as well be used as a simple device to detect estrus in buffalo.

show abstract

Faecal chemical cues in water buffalo that facilitate estrus detection

Cited by 38 publications

References 17 publications

Characterizing the scent and chemical composition of Panthera leo marking fluid using solid-phase microextraction and multidimensional gas chromatography–mass spectrometry-olfactometry

Characterizing the scent and chemical composition of Panthera leo marking fluid using solid-phase microextraction and multidimensional gas chromatography–mass spectrometry-olfactometry

Mating Group Size in Dusky Dolphins (Lagenorhynchus obscurus): Costs and Benefits of Scramble Competition

Evaluation of pheromone‐based kit: A noninvasive approach of estrus detection in buffalo

Contact Info

Product

Resources

About