GENETIC PROFILE OF MORPHOLOGICAL TRAITS AND THEIR ASSOCIATION WITH PRODUCTION CAPACITY OF THE RED SOKOTO GOAT IN KATSINA STATE OF NIGERIA BY

Simple item page
dc.contributor.authorIJOMANTA, OFORODO ESTHER
dc.date.accessioned2014-02-25T10:15:34Z
dc.date.available2014-02-25T10:15:34Z
dc.date.issued2012-08
dc.descriptionA THESIS SUBMITTED TO THE POSTGRADUATE SCHOOL, AHMADU BELLO UNIVERSITY ZARIA, IN PARTIAL FULFILLMENT FOR THE AWARD OF MASTER OF SCIENCE (M.Sc) IN ANIMAL SCIENCE DEPARTMENT OF ANIMAL SCIENCE AHMADU BELLO UNIVERSITY ZARIA NIGERIA AUGUST, 2012en_US
dc.description.abstractThis research was conducted to determine the morphological traits, production capacity and existing association between them in Red Sokoto goats in Kastina state. A total of 888 Red Sokoto goats (RSG) were used for the study out of which 152 lactating does were used to assess the milk production capacity of Red Sokoto goats. The morphological and morphometric traits were identified and measured and their associations with production capacity were assessed. The distributon and frequencies of the morphological traits were investigated and scored for the presence or absence of wattle (Waw or Wa+), beard (Brb or Br+), horn (Ho+ or Hop), supernumerary teat (Stt or St+) and head profile; straight or subconvex (Hpsv or Hpst) . Wattle had a significant relationship (p<0.05) with beard (-0.12) but was not significant with head profile. Frequencies of the dominant alleles for RSG were 0.04 (Waw), 0.11 (Brb), 0.00 (Hop), 0.02 (Hpsv), and 0.13 (Stt). The average body weight (BWT), body length (BLT), heart girth (HG), thoracic depth (TD), height at withers (HAW), average ear length (AEL) and average horn length (AHL) were 25.3kg, 53.5, 69.4, 36.0, 58.1, 9.5 and 8.3cm respectively and the CV of the morphometric traits ranged from 11.26-25.19 with body weight (25.19) being the most variable and HAW (11.26) being the least variable trait. Wattle had no significant (P>0.05) influence on all body conformation traits. Beard significantly (P<0.05) influenced BLT and HAW. Head profile significantly influenced all body conformation traits except heart girth (HG). Zone had a significant (P<0.05) influence on all the body conformation traits except AHL while sex had a significant (p<0.05) influence on morphometric traits except AEL, and AHL. The average litter size (LS), parity, first test day yield (FTDY), average daily morning milk yield (ADMY), peak day (PD), last test day yield (LTDY) and total yield were 1.8, 3.8, viii 216.1mls,253.1mls, 375mls, 34.8 days, 105.2mls and 25103.4mls respectively. LS, parity and PD were more variable (21.44-43.5), while FTDY, ADMY, PY, LTDY and TY were less variable (4.70-18.96). The relationship between body morphological traits and lactating characteristics were also assessed. Parity significantly affected all body conformation traits. LS significantly affected body conformation traits except HG and HAW while litter composition (LC) significantly affected BWT, BLT and HG but not TD and HAW. Wattle had a significant effect on FTDY, ADMY, PY and LTDY but had no significant influence on PD and TY. Supernumerary teat had no effect on the lactation traits except for ADMY and TY which were low when present. Parity on the other hand significantly (P<0.05) affected FTDY, ADMY, PY and TY but had no significant (p>0.05) effect on PD and LTDY. LS and LC had a significant effect on all measured lactation traits of goats except FTDY, PD and LTDY. Zone had a significant (P<005) influence on lactation traits except FTDY. All the body conformation traits and lactation traits of RSG were significantly and positively (P<0.05; P<0.01) correlated. Qualitative traits had a low gene frequency of occurrence. Presence or absence of wattles had no effect on body conformation traits but had an effect on milk lactation characteristics. Goats with beards had longer bodies and grew taller, while those with normal two teats produced more milk than those with extra teats. Zone, sex and litter size influenced body conformation and milk yield characteristics in RSG. High incidence of multiple births indicates that RSG are highly prolific. The significant effect of parity on lactation traits, body weight and morphometric traits in this study therefore, indicates that parity of dam is an important factor to consider in making appropriate selectsion and /or culling decision in RSG.en_US
dc.identifier.urihttp://hdl.handle.net/123456789/2534
dc.subjectGENETICen_US
dc.subjectPROFILEen_US
dc.subjectMORPHOLOGICAL TRAITSen_US
dc.subjectASSOCIATIONen_US
dc.subjectPRODUCTION CAPACITYen_US
dc.subjectREDen_US
dc.subjectSOKOTO GOATen_US
dc.subjectKATSINAen_US
dc.titleGENETIC PROFILE OF MORPHOLOGICAL TRAITS AND THEIR ASSOCIATION WITH PRODUCTION CAPACITY OF THE RED SOKOTO GOAT IN KATSINA STATE OF NIGERIA BYen_US
dc.typeThesisen_US
Files
Original bundle
Now showing 1 - 1 of 1
No Thumbnail Available
Name:
GENETIC PROFILE OF MORPHOLOGICAL TRAITS OF RSG IN KATSINA STATE.pdf
Size:
4.54 MB
Format:
Adobe Portable Document Format
Description:
Download
License bundle
Now showing 1 - 1 of 1
No Thumbnail Available
Name:
license.txt
Size:
1.58 KB
Format:
Item-specific license agreed upon to submission
Description:
Download
Collections
VETERINARY MEDICINE