The Growth Effect of a Commercial Diet versus Calcium‐Dusted Blaptica dubiaand Carica papaya on Juvenile Correlophus ciliatus
Authors: Atamian Seza 
Published: April 2020

Background

Reptiles and amphibians are increasing in households across the United States. Pet owners are struggling to maintain their well‐being due to lack of proper husbandry and nutrition, resulting in a poor quality of life and a reduced lifespan. This study was conducted to provide more information on nutrition to reptile owners, breeders, herpetologists, veterinary professionals and more. The goal is to provide dietary information for increased growth in Correlophus ciliatus, the crested gecko.

Materials and Methods

A food trial was conducted for 5 weeks with 60 juvenile crested geckos, 30 of which were fed a diet of calcium‐dusted cockroaches and fresh papaya and the remaining 30 were fed Pangea ãcrested gecko diet. Their environments remained controlled and measurements were taken once a week, on their fourth feeding day. IACUC Approved: 19.006

Results

Before and after the food trial, the geckos had the same behavior, activity and appeared healthy, therefore their welfare was not compromised. Upon conducting a two‐way repeated measures ANOVA and a paired t‐test examining weight and length, the geckos of the insect/fruit diet group on average gained more weight and showed increased growth compared to the commercial diet group. The data analysis on length did not demonstrate any significant difference. Statistically, from Week 1 to 5, the insect/fruit diet and commercial diet groups had a total body percent increase of 24.13% and 13.07%, respectively.

Conclusions

Based on the study conducted, the juvenile crested geckos tested exhibited increased growth on a diet comprised of fruit and insect rather than a commercial diet.

Clinical relevance

With this data and analysis, crested gecko nutrition is better understood and statistically available for establishing better nutritional standards and procedures.

Support or Funding Information

Funded by the Office of Undergraduate Research of Cal Poly PomonaApproved by the Institutional Animal Care and Use Committee (IACUC)‐ #19.006

Figure 1Figure 2

Nutrient Analysis of Blaptica dubia and Carica papaya and Pangea© Diet

Feed (Fresh)

Fat (%)

Moisture (%)

Protein (%)

Ash (%)

Fiber (%)

Blaptica dubia (as fed)

6.1

71.5

21.4

1.3

2.6

Carica papaya (as fed)

2.5

92.7

9.0

0.6

15.8

Pangea© (dry matter)

4.6

7.4

25.5

7.4

1.9

Comparison of Crested Geckos’ Mean Starting Weight, Mean Weight Gain and Totally Body Percent Increase in Insect/Fruit Diet vs. Commercial Diet Groups

Group

N

Mean Starting Weight (g)

Mean Weight Gain (g)

Total Body Percent Increase (%)

Insect Fruit Diet

30

3.24

0.81

24.35

Commercial Diet

30

3.26

0.43

13.07

Comparison of Crested Geckos’ Mean Group Weight per Week in Insect/Fruit vs. Commercial Diet Groups

Insect/Fruit Diet (g)

Commercial Diet (g)

Week 1

3.24

3.26

Week 2

3.41

3.36

Week 3

3.58

3.46

Week 4

3.85

3.48

Week 5

4.06

3.68

Comparison of Crested Geckos’ Mean Group Length per Week in Insect/Fruit vs. Commercial Diet Groups

Insect/Fruit Diet (cm)

Commercial Diet (cm)

Week 1

10.25

10.16

Week 2

10.61

10.15

Week 3

10.78

10.77

Week 4

10.9

10.72

Week 5

10.98

10.84