COMPARATIVE ASSESSMENT OF YIELD AND MEAT QUALITY OF THREE GIANT AFRICAN LAND SNAIL SPECIES AT DIFFERENT AGE GROUPS

Simple item page
dc.contributor.authorJUMAH, Fatimah Adeitan
dc.date.accessioned2021-11-04T08:34:01Z
dc.date.available2021-11-04T08:34:01Z
dc.date.issued2021-03
dc.descriptionA DISSERTATION SUBMITTED TO THE SCHOOL OF POSTGRADUATE STUDIESAHMADU BELLO UNIVERSITY IN PARTIAL FULFILLMENT OF THE REQUIREMENTS FOR THE AWARD OF MASTER OF SCIENCE IN ANIMAL SCIENCE DEPARTMENT OF ANIMAL SCIENCE, FACULTY OF AGRICULTURE, AHMADU BELLO UNIVERSITY, ZARIA, NIGERIAen_US
dc.description.abstractThis study was conducted to evaluate the effects of species and age on the yield and quality of edible snail meat. A total of 180 snails were sourced from Merchant Farms, Ibadan, Oyo State. Thirty (30) snails each from the young and mature of Achatina achatina, Achatina fulica and Achachatina marginata were used in a 3 x 2 x 4 (specie x age x storage time) factorial arrangement in a Completely Randomized Design. The live weight, mouth width, shell length and shell width were taken. Sensory evaluation was carried out on the fried snail meat from each specie, from the two age groups (young and mature). Samples of the fried snail meat were also evaluated for microbial count (total aerobic and coliform) for a 21-day storage period (0, 7, 14 and 21) using the standard plate count procedure of serial dilution. The results showed that the chemical composition of the three species at both ages (young and mature) differ significantly (P<0.05) different. Crude fiber was not found in all the species and the age groups. Crude protein and ether extract of A. marginata differed significantly (P<0.05) from the other two species while A. fulica differed significantly (P<0.05) in ash content. Similarly, age significantly (P<0.05) influenced ether extract with mature ones having the highest value. Conversely, the young have more ash content than the mature snails (P<0.05). There were significant (P<0.05) differences in carcass weight, meat yield, yield of viscera and cooking loss; with A. marginata recording highest in all the parameters investigated. Specie difference also significantly (P<0.05) influenced shell weight, shell length, shell width, mouth length and mouth width; with A. marginata recording the highest values in all the parameters. Results from organoleptic assessment showed that A. marginata at mature stage were most preferred by the panelists However age, species and storage days significantly (P<0.05) influencedthe total aerobic count obtained. It can be concluded that optimum yield can be obtained from A. marginata at both young and mature stage. A. marginataat mature stage had the highest crude protein andwas generally accepted by the panelists, while A.fulica had more minerals at both young and mature stage also the microbial load at all the storage periods were not above the borderline for ready to eat meat product. However, above day 0 TAPC during the storage period revealed thatday 7 had lower microbial load than day 14, and 21.en_US
dc.identifier.urihttp://hdl.handle.net/123456789/12707
dc.language.isoenen_US
dc.subjectCOMPARATIVE ASSESSMENT,en_US
dc.subjectYIELD,en_US
dc.subjectMEAT QUALITY,en_US
dc.subjectTHREE GIANT AFRICAN LAND SNAIL SPECIES,en_US
dc.subjectDIFFERENT AGE GROUPS.en_US
dc.titleCOMPARATIVE ASSESSMENT OF YIELD AND MEAT QUALITY OF THREE GIANT AFRICAN LAND SNAIL SPECIES AT DIFFERENT AGE GROUPSen_US
dc.typeThesisen_US
Files
Original bundle
Now showing 1 - 1 of 1
No Thumbnail Available
Name:
COMPARATIVE ASSESSMENT OF YIELD AND MEAT QUALITY OF THREE GIANT AFRICAN LAND SNAIL SPECIES AT DIFFERENT AGE GROUPS.pdf
Size:
1.47 MB
Format:
Adobe Portable Document Format
Description:
Download
License bundle
Now showing 1 - 1 of 1
No Thumbnail Available
Name:
license.txt
Size:
1.62 KB
Format:
Item-specific license agreed upon to submission
Description:
Download
Collections
AGRICULTURE