ABSTRACT
Three
experiments were conducted to determine the effects of cassava peel-cassava
leaf meal based diets on nuiricnl intake and digestibility, carcass and milk
yield ofWAD goats were evaluated. In experiment 1, four West African Dwarf
(WAD) bucks averaging 8.0 kg and aged between 6-8 months were used to determine
the intake and digestibility of cassava peel-cassava leafmeal based diets. The
four- diets (A,B,C and D) were formulated to contain cassava peel, palm kernel
cake, brewers dried grain, bone meal, soy bean meal, common salt and 0,10,20
and 30% cassava leaf meal, respectively. The diets were assigned individually
to the four animals in metabolism cage in a 4x4 Latin Square Design Experiment.
Body weight, daily feed intake and daily nitrogen balance were measured. The
study showed that incorporation of cassava leaf meal in cassava peel based
diets generally enhanced feed intake in WAD goats. The dry matter intake (DMI),
faecal-N, absorbed- N and N-balance values increased in the goats as the
N-intake increased. The apparent N-digestibility did not follow any definite
pattern. Diet A had the highest (50.86%) value followed by B (50.54%), C
(48.41%) and D (41.71%). These values were statistically similar (P>0.05).
The faccal-N values differed significantly (P<0.05). These values were 2.53,
2.95, 3.12 differ significantly (P>0.05) while those of CF, NFE and energy
differed significantly (P<0.05) among experimental animals. The metabolic
faecal nitrogen (MFN) (g/lOOgDM), endogenous urinary, nitrogen (El^N)
(g/day/Wkg075) and digestible crude protein (DCP) (g/day/Wkg075) values for
maintenance were 0.25; 0.142,0. 89; 0.26, 0.0279,1.79; 0.32, 0.0232, 1.09 and
0.30, 0.0301,2.01 respectively for diets A, B, C and D. All the diets promoted
positive N- balance. The cassava leafmeal fed diets required 1.81 times as
much DCP, yielded i. 17times as much MFN and 0.19 times as much EUN as the'
control animals for maintenance. In experiment 2, twelve weaner bucks aged 6 -
8 months and averaging 8.0kg in weight were divided into 4 groups of 3, and
each group randomly assigned to one of the treatment diets as in experiment 1
and fed for a period of 60 days. Parameters measured were average daily weight
gain (ADWG), feed conversion ratio (FCR), feed cost per kg gain (N) and
dressing percentage. ADWG were 34.17, 50.00. 62.50 and 66.67g for diets A, B, C
and D, respectively. The values were significantly different (P<0.05). The
group on diet D had the least FCR (3.58) which did not differ significantly
(P<0.05) from the group on diet C (3.69) but differed significantly
(P<0.05) i from the group on diet B (4.55) and A (6.50). Feed cost /kg gain
(N) was least for the group on diet D ($429.96) and highest for the group on
diet A (£471.45). Dressing percentage did not differ significantly (P>0.05)
among treatment groups but the group on diet C had the highest dressing
percentage (47.77%) which means that diet C performed better than the other
diets as a fattening diet. Bone to lean ratio was highest (0.008) for the group
on diet A which had the highest feed conversion ratio while the groups oh diets
D and C which had comparable feed conversion ratios had the lowest bone to lean
ratio. In experiment 3, four lactating WAD does were housed individually in
pens and were assigned to the experimental diets as in experiment 2 in a 4x4
Latin Square Experiment and fed for 56 days. Drinking water was offered
liberally. Milk yield (MY) was measured and analyzed weekly for total solids
(TS), butterfat (BF), crude protein (CP) solids-not-fat (SNF), lactose, ash and
energy. Simple linear regression was used to ascertain the degree of
relationships between MY and milk constituents. The MY did not significantly
differ (PXJ.05) among the treatment groups. The group on diet D (30% CLM)
recorded the highest milk yield I (134.99g/d) while those on diet B (10%CLM)
recorded the lowest milk yield (119.73g/d).The group on diet D with the highest
MY had the lowest TS and BF (12.35%, 4.77%) while the group on diet B with
the least MY had the highest TS and BF values (12.81%, 4.92%). Apart from
lactose which was significantly different (P<0.05) among the treatments,
other milk constituents did not differ significantly (P>0.05) among the
treatment groups. The relationship between MY and various milk constituents
indicated negative correlation between MY and TS, MY and BF, MY and SNF, MY and
lactose. However, these correlations were not significant (P>0.05). Positive
correlation existed between BF and TS, milk protein and TS, milk energy and TS,
lactose and SNF, milk energy and BF, BF and milk protein. Milk protein and BF
were highly significant (PO.OOl) and positively correlated. Milk protein and
SNF were negative and significantly correlation while a significant positive
correlation existed between BF and milk protein. Diet D (30% CLM) which gave
the highest TClY and diet C with the best dressing-out percentage are
recommended.
ANTHONIA, I (2024). Evaluation Of Cassava Peel-Cassava Leaf Meal Diets For Meat And Milk Production By The West African Dwarf Goats In South-Eastern Nigeria:- Ukanwoko, Anthonia I.. Mouau.afribary.org: Retrieved Sep 08, 2024, from https://repository.mouau.edu.ng/work/view/evaluation-of-cassava-peel-cassava-leaf-meal-diets-for-meat-and-milk-production-by-the-west-african-dwarf-goats-in-south-eastern-nigeria-ukanwoko-anthonia-i-7-2
I., ANTHONIA. "Evaluation Of Cassava Peel-Cassava Leaf Meal Diets For Meat And Milk Production By The West African Dwarf Goats In South-Eastern Nigeria:- Ukanwoko, Anthonia I." Mouau.afribary.org. Mouau.afribary.org, 08 Apr. 2024, https://repository.mouau.edu.ng/work/view/evaluation-of-cassava-peel-cassava-leaf-meal-diets-for-meat-and-milk-production-by-the-west-african-dwarf-goats-in-south-eastern-nigeria-ukanwoko-anthonia-i-7-2. Accessed 08 Sep. 2024.
I., ANTHONIA. "Evaluation Of Cassava Peel-Cassava Leaf Meal Diets For Meat And Milk Production By The West African Dwarf Goats In South-Eastern Nigeria:- Ukanwoko, Anthonia I.". Mouau.afribary.org, Mouau.afribary.org, 08 Apr. 2024. Web. 08 Sep. 2024. < https://repository.mouau.edu.ng/work/view/evaluation-of-cassava-peel-cassava-leaf-meal-diets-for-meat-and-milk-production-by-the-west-african-dwarf-goats-in-south-eastern-nigeria-ukanwoko-anthonia-i-7-2 >.
I., ANTHONIA. "Evaluation Of Cassava Peel-Cassava Leaf Meal Diets For Meat And Milk Production By The West African Dwarf Goats In South-Eastern Nigeria:- Ukanwoko, Anthonia I." Mouau.afribary.org (2024). Accessed 08 Sep. 2024. https://repository.mouau.edu.ng/work/view/evaluation-of-cassava-peel-cassava-leaf-meal-diets-for-meat-and-milk-production-by-the-west-african-dwarf-goats-in-south-eastern-nigeria-ukanwoko-anthonia-i-7-2