Use this URL to cite or link to this record in EThOS: http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.336187
Title: Nutrition and performance of dairy cows in coastal lowland Kenya in relation to utilization of local feed resources
Author: Muinga, Rahab W.
ISNI:       0000 0001 3428 9883
Awarding Body: University of Aberdeen
Current Institution: University of Aberdeen
Date of Award: 1992
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Abstract:
The utilization of Pennisetum purpureum (Napier grass var Bana) based diets and the lactation performance of dairy cows in coastal lowland Kenya was studied in a series of five experiments. In experiments 1 and 2, the effects of 300g/day additional crude protein from locally available fishmeal, copra cake and Leucaena were compared using Jersey cows fed ad libitum Napier grass. Experiment 1 carried out in early lactation, showed that supplements (fishmeal or copra cake) could increase dry matter DM intake, reduce live-weight loss and increase (P< 0.05) milk output (7.8 v 6.4kg/day) with no differences between the supplements. Experiment 2 was carried out in mid lactation. Cows fed supplements (a mixture of copra cake/maize bran or Leucaena) consumed more (P< 0.01) DM with no effect on Napier grass intake and produced more (P< 0.05) milk no difference between supplements. No significant changes in live weight were observed. Ayrshire/Brown Swiss x Sahiwal cattle were used in experiments 3 to 5. In experiment 3, the effects of Napier grassharvesting height (1.0 v 1.5m) and level of Leucaena (0,4 and 8kgFW) were evaluated in early lactation. Feeding Napier grass harvested at 1.0m compared with 1.5m increased (P&60 0.01) Napier grass intake (9.3 v 6.8kg/day), reduced live-weight losses (0.16 v 0.49kg/day) and increased milk yield (8.6 v 6.9kg/day). Feeding Leucaena (0, 4 and 8kgFW; DM280g/kg) significantly (P< 0.01) increased total DM intake (7.8, 9.3 and 10.4kg/day), reduced live-weight loss (0.53, 0.23 and 0.17kg/day) and increased milk yield (7.3, 7.7 and 8.3kg/day).
Supervisor: Not available Sponsor: Not available
Qualification Name: Thesis (Ph.D.) Qualification Level: Doctoral
EThOS ID: uk.bl.ethos.336187  DOI: Not available
Keywords: Animal husbandry & farm animals & pets Livestock Pets Agronomy Plant diseases Horticulture
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