ABSTRACT
In two
separate experiments, the replacement value of tiger nut meal (TNM) for maize
offal was evaluated. The experiments were subjected to 4X4 Latin Square Design
using four goats per experiment. In the first experiment, nutrient
digestibility and apparent nitrogen utilization by West African dwarf (WAD)
bucks were evaluated while the second experiment was a lactation study
involving WAD does. Four dietary treatments designated Tl, TI, T3 and T4 were
formulated to contain 0, 30; 10, 20; 20, 10 and 30, 0 percentages of maize
offal and TNM respectively. The bucks and does averaged I 1.0kg and 14.5kg live
weights respectively. The results showed that the diets; Tl, TI, T3 and T4
contained 14.35, 13.58, 13.31 and 13.33 % CP and 1.74, 1.70, 1.73 and 1.73
MJ/kg of energy respectively. Except ether extract, all the nutrients evaluated
for apparent digestibility did not differ (P>0.05) statistically. Increasing
levels of TNM promoted higher ether extract digestibility (P<0.05). Ether
extract digestibility values ranged from 48.97- 69.82%. The apparent nitrogen
(N) utilization study showed that all the parameters evaluated were
statistically unaffected {P>0.05) by the treatments. Dry matter intake (DMI)
was within the range of 2.85- 3 .07% of live weight. Performance evaluation of
the WAD does showed non-significant (P>0.05) effect of diets. Milk yield
{g/d) ranged from 68.52 - 132.55. Apart from solids-not fat (SNF)(%) and
fat-corrected milk (FCM)(g), all the milk constituents studied were influenced
statistically (P<0.05) by the diets. Total solids (TS) were recorded highest
in T4 while Tl had the highest milk protein. TS ranged from 12.37- 14.80% while
4.33 - 4.81 % were recorded for milk protein. Butter fat percentage varied
(P<0.05) statistically across the treatments. Increasing levels of TNM
promoted higher butterfat percentage with a range of 3.99- 5.83 from Tl -T4.
Ash and lactose contents of milk were all influenced similarly by diets with
ranges of 0.92 - 1.03% and 4.26 - 4.80% respectively. Solids-corrected milk
(SCM, g) ranged from 98.90- 121.34 while milk energy (MJ/kg) recorded a range
of 3.50- 4.33. Butterfat and SNF appeared to have great effect on the milk
energy. From the results, it could be xii deduced that tiger nut has great
potential to improve milk yield and composition as well as overall animal
performance if properly harnessed. It is recommended that TNM should replace
maize offal up to 30% in the concentrate diet for lactating does for maximum
yield and quality of milk.
EZIMOHA, O (2023). Replacement Of Maize Offal With Tiger Nut (Cyperus Esculentus) Meal On Yield And Composition Of Milk Of West African Dwarf (Wad) Goats Maintained In A Humid Tropical Environment. Repository.mouau.edu.ng: Retrieved Dec 30, 2024, from https://repository.mouau.edu.ng/work/view/replacement-of-maize-offal-with-tiger-nut-cyperus-esculentus-meal-on-yield-and-composition-of-milk-of-west-african-dwarf-wad-goats-maintained-in-a-humid-tropical-environment-7-2
OGECHI, EZIMOHA. "Replacement Of Maize Offal With Tiger Nut (Cyperus Esculentus) Meal On Yield And Composition Of Milk Of West African Dwarf (Wad) Goats Maintained In A Humid Tropical Environment" Repository.mouau.edu.ng. Repository.mouau.edu.ng, 28 Aug. 2023, https://repository.mouau.edu.ng/work/view/replacement-of-maize-offal-with-tiger-nut-cyperus-esculentus-meal-on-yield-and-composition-of-milk-of-west-african-dwarf-wad-goats-maintained-in-a-humid-tropical-environment-7-2. Accessed 30 Dec. 2024.
OGECHI, EZIMOHA. "Replacement Of Maize Offal With Tiger Nut (Cyperus Esculentus) Meal On Yield And Composition Of Milk Of West African Dwarf (Wad) Goats Maintained In A Humid Tropical Environment". Repository.mouau.edu.ng, Repository.mouau.edu.ng, 28 Aug. 2023. Web. 30 Dec. 2024. < https://repository.mouau.edu.ng/work/view/replacement-of-maize-offal-with-tiger-nut-cyperus-esculentus-meal-on-yield-and-composition-of-milk-of-west-african-dwarf-wad-goats-maintained-in-a-humid-tropical-environment-7-2 >.
OGECHI, EZIMOHA. "Replacement Of Maize Offal With Tiger Nut (Cyperus Esculentus) Meal On Yield And Composition Of Milk Of West African Dwarf (Wad) Goats Maintained In A Humid Tropical Environment" Repository.mouau.edu.ng (2023). Accessed 30 Dec. 2024. https://repository.mouau.edu.ng/work/view/replacement-of-maize-offal-with-tiger-nut-cyperus-esculentus-meal-on-yield-and-composition-of-milk-of-west-african-dwarf-wad-goats-maintained-in-a-humid-tropical-environment-7-2