Piglets Removable Y Maze
Large-scale Y-maze apparatus with removable divider system for assessing spatial learning, memory, and choice behaviors in piglets and young pigs.
Louise Corscadden, PhD
Director of Science · ConductScience
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Key Specifications
Full details →- Removable Divider Length
- 0.84 m
- Choice Compartment Dimensions
- 0.84 m by 0.9 m each
- Includes Removable Isolation Board
- Yes
- Includes Removable Low Wall Divider
- Yes
- Maze Configuration
- Y-shaped with rectangular open space
- Sizing
- Piglets Removable Y Maze: Length of maze 2.79 m · Height of maze 0.96 m
The Piglets Removable Y Maze is a specialized behavioral apparatus designed for cognitive and spatial learning assessment in piglets and young pigs. The apparatus features a Y-shaped configuration with dimensions of 2.79 m × 1.86 m × 0.96 m, incorporating a removable low-wall divider system that creates two distinct choice compartments (each measuring 0.84 m × 0.9 m). This modular design allows researchers to configure the maze for various experimental paradigms including spatial discrimination, choice behavior analysis, and memory consolidation studies.
The apparatus utilizes a removable isolation board and low-wall divider system, enabling flexible experimental designs ranging from simple two-choice discrimination tasks to complex spatial navigation protocols. The large scale accommodates the size and behavioral characteristics of piglets, providing adequate space for natural movement patterns while maintaining experimental control. This tool addresses the growing need for validated behavioral assessment methods in porcine models, particularly relevant for translational research applications where pig cognition serves as a bridge between rodent models and human studies.
How It Works
The Y-maze operates on the principle of spatial choice behavior assessment, where subjects must navigate between two or more distinct compartments to receive rewards or avoid aversive stimuli. The apparatus exploits the natural exploratory behavior of pigs, utilizing their spatial memory capabilities to assess cognitive function through choice patterns and navigation strategies. The removable divider system allows researchers to modify the spatial configuration during testing, creating dynamic environments that challenge different aspects of cognitive processing.
Experimental protocols typically involve training phases where piglets learn to associate specific spatial locations with rewards, followed by test phases that assess memory retention, reversal learning, or discrimination abilities. The large scale of the apparatus accommodates the physical requirements of piglet subjects while maintaining the spatial relationships necessary for valid cognitive assessment. Data collection focuses on choice accuracy, response latency, and navigation patterns, which provide quantitative measures of learning acquisition, memory consolidation, and cognitive flexibility.
Features & Benefits
Research identifier
This ID comes from NCBI Taxonomy. Use it in data records and methods sections.
- Species
- Pig
NCBITaxon:9823
Sizes by model
| Measurement | Piglets Removable Y Maze |
|---|---|
| Length of maze | 2.79 m |
| Height of maze | 0.96 m |
| Width of maze | 1.86 m |
Notes
- Lengthof removable y maze low-wall: 0.84m
- Width of handle area: 0.90m
Removable Divider Length
- 0.84 m
Choice Compartment Dimensions
- 0.84 m by 0.9 m each
Includes Removable Isolation Board
- Yes
Includes Removable Low Wall Divider
- Yes
Maze Configuration
- Y-shaped with rectangular open space
Behavioral Construct
- Spatial working memory
- Spatial reference memory
- Choice behavior
- Discrimination learning
- Cognitive flexibility
- Spatial navigation
Automation Level
- manual
Species
- Pig
Dimensions
- 2.79 m x 1.86 m x 0.96 m
Research Domain
- Behavioral Pharmacology
- Developmental Biology
- Learning and Memory
- Neuroscience
- Toxicology
Compatible Tracking Software
- ConductVision
Shipping weight
- 21.0 lb
Shipping box
- L: 43.2 cm
- W: 38.0 cm
- H: 27.9 cm
| Feature | This Product | Typical Alternative | Advantage |
|---|---|---|---|
| Overall Maze Dimensions | 2.79 m × 1.86 m × 0.96 m | Smaller pig mazes often measure 2.0 m × 1.5 m or less | Larger dimensions accommodate natural piglet movement patterns and reduce spatial constraints that could confound behavioral measurements |
| Choice Compartment Size | 0.84 m × 0.9 m per compartment | Many designs offer smaller compartments around 0.6 m × 0.7 m | Adequate compartment size prevents crowding effects and allows clear spatial discrimination between choice options |
| Divider Configuration | Removable 0.84 m low-wall divider system | Fixed divider systems or basic removable barriers | Modular design enables transition between open-field and structured choice paradigms without apparatus replacement |
| Experimental Flexibility | Y-shaped configuration with isolation board system | Fixed maze geometries with limited reconfiguration options | Multiple configuration options support diverse experimental protocols from simple discrimination to complex spatial navigation studies |
This apparatus provides validated Y-maze geometry scaled for piglet subjects with modular components that enhance experimental flexibility. The removable divider system and adequate compartment dimensions support diverse cognitive assessment protocols while accommodating the behavioral requirements of pig models.
Practical Tips
Habituate piglets to the apparatus for 10-15 minutes without experimental contingencies before beginning formal testing.
Why: Pre-exposure reduces novelty-induced stress responses that could interfere with cognitive performance assessment
Inspect removable divider connections weekly and ensure all components remain securely positioned during testing sessions.
Why: Loose components can create distracting sounds or movement that disrupts behavioral protocols
Record ambient temperature and lighting conditions for each testing session and maintain consistency across experimental days.
Why: Environmental variations can significantly affect pig behavior and confound cognitive performance measurements
Maintain clear researcher access paths around the apparatus perimeter and ensure emergency removal procedures are established.
Why: Pig subjects can exhibit unpredictable behaviors requiring rapid researcher intervention for animal and human safety
Verify maze dimensions and divider positioning before each experimental session using the specified measurements.
Why: Spatial relationships are critical for valid cognitive assessment and small deviations can affect behavioral outcomes
Implement counterbalanced reward placement across subjects to control for spatial biases and preference effects.
Why: Systematic reward positioning prevents location preferences from confounding learning assessment measures
If subjects show persistent side bias, temporarily increase reward magnitude or salience in the non-preferred compartment.
Why: Strong spatial preferences can mask cognitive abilities and require motivational adjustments to achieve balanced choice behavior
Setup Guide
What’s in the Box
- Main maze arena structure
- Removable low-wall divider (0.84 m)
- Removable isolation board
- Assembly hardware and fasteners
- Setup and operation manual (typical)
- Basic measurement tools for configuration verification (typical)
Warranty
ConductScience provides a standard one-year manufacturer warranty covering defects in materials and workmanship, with technical support available for setup guidance and troubleshooting assistance.
Compliance
References
Background reading relevant to this product:
Protocol and background
Introduction
The piglet removable Y-maze is used to study learning, memory, and choice behaviors in piglets. It is a variation of the rodent Y-maze used in the assessment of choice behaviors. It consists of an open arena that has a removable low wall divider inserted on one side, forming two choice compartments, thus creating a Y shaped apparatus.
The piglet removable Y-maze provides a simple environment to evaluate responses in piglets to stimuli simultaneously. In domestic pigs, human interactions are quite common; Positive or negative experiences with handlers can often be observed to affect their behaviors (Brajon, Laforest, Bergeron, Tallet, & Devillers, 2015). The piglet removable Y-maze can be effectively used to observe changes in preference behaviors and other behavioral changes resulting from previous handling experiences. In addition to observation of handling-influenced behaviors, the maze can also be extended to responses to other stimuli and conditions such as different environmental set-ups and sociability. Further, the effects of diseases and disorders, brain lesions, or pharmacological manipulations on learning, memory, and choice behaviors can also be evaluated.
The piglet removable Y-maze also allows the creation of an isolation area for the subjects through the insertion of a removable isolation board separating the start area from the choice area. This prevents the piglets from having immediate contact with the stimuli as they enter the maze. Other apparatuses used in the evaluation of behaviors in piglets and pigs include the Piglet T-Maze, the Pig 8 Arm Radial Maze, and the Pig Conditioned Place Preference Chamber.
Apparatus and Equipment
The piglet removable Y-maze has an overall dimension of 2.79 m x 1.86 m x 0.96 m. It consists of a rectangular open area that has a removable low wall divider (0.84 m) inserted on one side, forming two 0.84 m x 0.9 m choice compartments. The maze also comes equipped with a removable isolation board that can be inserted to separate the start area from the choice area, essentially creating an isolation area for the subjects.
Training Protocol
Clean the maze after every trial. Appropriately light the maze. A tracking and recording system such as the Noldus Ethovision XT can be used to assist with observations.
Habituation and Pre-training
Place the subject in the maze and allow it to freely explore the maze and habituate with the environment for 15 minutes.
Reactivity Task (Human Stimuli)
Insert the removable low-wall divider 10 minutes before the test. Let the subjects enter the maze and direct them towards the isolation area. Let the humans A and B enter the maze and sit in the two square compartments. After 3 minutes, remove the isolation board. Observe the behaviors of the piglets as they explore the maze for 3 minutes. Alternate the seating compartments for every trial.
Reactivity task can be extended to different stimuli set-ups such as familiar vs. unfamiliar pigs, or enriched environment vs. unenriched environment.
Evaluation of perception of humans by piglets
Brajon et al. (2015) evaluated the perception of humans by piglets when placed in a piglet removable Y-maze. The study involved understanding whether piglets could discriminate and recognize familiar humans and whether they could generalize their past experiences with humans when faced with strangers. A hundred and fourteen piglets from 23 litters of Yorkshire, Landrace, and Duroc piglets were used in the experiment. The piglets were submitted to two 5-day conditioning periods of the same or opposite valence (positive and/or negative) given by one (A) or two (A then B) handlers. Reactivity tests were performed before and after conditioning periods with familiar and unfamiliar handlers. It was observed that the piglet’s reactivity to an approaching human was better with familiar handlers. Their reactivity with motionless handlers made them seek interaction even if they had received negative treatment with the handler. Following the conditioning periods, the piglets were subjected to a choice test after treatment with both handlers. The piglets that received inconsistent treatments chose and approached the handler associated with positive reinforcements, while the piglets from consistent treatments showed no preference of a handler. Behavioral responses of piglets revealed that piglets could generalize their experience after a previous conditioning period.
Data Analysis
The following can be observed on a piglet removable Y-maze:
- Number of times approached/interacted stimuli in the left compartment
- Number of times approached/interacted stimuli in the right compartment
- The latency of subject to enter each choice compartment
- Time spent in contact with the stimulus in either compartment
- Time spent in the isolation area
Strengths and Limitations
Strengths
The piglet removable Y-maze is used to study learning, memory, and choice behaviors in piglets. It uses a simple two-choice design that allows a simultaneous view of both the available choices. The piglet removable Y-maze is essentially an open arena when used without the low wall divider and isolation board, which allows for quick adaptation of the maze for different applications and protocols. Experiences and preferences of the subjects play a strong part in their decision-making process; thus, the effectiveness of the maze in behavioral assessment is not reduced. It can also be used to test the effects of diseases and disorder, brain lesions, or pharmacological manipulations on learning and memory behaviors.
Limitations
Consistent and inconsistent treatments by humans with the subjects may affect experimental results. Factors such as age, gender, and strain may affect task behavior. Unintentional stimuli such as auditory, olfactory, or visual may affect the way the subject performs the task. The subject's explorative drive is necessary for the completion of the task.
Summary
- The piglet removable Y-maze is used to study learning, memory, and choice behaviors in piglets.
- It consists of an open arena that has a removable low wall divider inserted to create two choice compartments.
- An isolation board allows the creation of an isolation area in the maze. This also allows the introduction of task delays.
- It can also be used to test the effects of different treatments such as diseases and disorders, brain lesions, or pharmacological manipulations on learning and memory behaviors.
References
Brajon, S., Laforest, J. P., Bergeron, R., Tallet, C., & Devillers, N. (2015). The perception of humans by piglets: recognition of familiar handlers and generalisation to unfamiliar humans. Animal Cognition, 18(6), 1299-1316. doi: 10.1007/s10071-015-0900-2
From the Maze Engineers documentation for this apparatus.
What is the optimal age range for piglets tested in this apparatus?
The apparatus is designed for weaned piglets typically ranging from 3-12 weeks of age, though specific age selection should be based on research objectives and the cognitive abilities being assessed.
How should the apparatus be cleaned between subjects to prevent olfactory cues?
Clean all surfaces with 70% ethanol solution and allow complete drying between subjects. Rotate removable components if possible to further minimize residual olfactory contamination.
What types of spatial cues can be effectively used with this maze configuration?
Visual cues such as geometric patterns, colored panels, or three-dimensional objects work well when positioned at choice points or compartment ends. Maintain consistent cue placement relative to maze geometry.
How many trials are typically required to establish baseline performance?
Most protocols require 10-20 training trials per session over 3-7 days to establish stable baseline performance, though this varies with task complexity and individual subject learning rates.
Can the apparatus accommodate different reward delivery systems?
Yes, the open design allows integration of various reward systems including food dispensers, water bottles, or manual delivery at choice compartment locations.
What behavioral parameters should be recorded during testing?
Key measures include choice accuracy, response latency, path length, number of arm entries, and time spent in each compartment. Video tracking systems facilitate automated data collection.
How does this apparatus compare to rodent Y-maze protocols?
The basic behavioral principles remain consistent, but protocols must account for larger subject size, different motivational systems, and potentially longer inter-trial intervals required for pig models.
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