Bio

Prof Mbugua Paul

After graduating from the University of Nairobi, with a Bachelor of Science in Agriculture in 1973, I joined the Ministry of Agriculture as a Research Officer responsible for dairy and beef cattle nutrition research. I was promoted to a Senior Research Officer in 1978 and in 1979; I proceeded to Cornell University for a PhD study in Animal Science. After returning to Kenya in 1983, I worked at the then National Animal Husbandry Research Station, Naivasha in charge of Dairy and Poultry research. In 1984 I joined the University of Nairobi as a lecturer in the Department of Animal Production.

Prof Mbugua Paul CV

Prof Mbugua Paul

Publications


2016

Kavoi, BM, Gakuya DW, Mbugua PN, Kiama SG.  2016.  Effects of dietary Moringa oleifera leaf meal supplementation on chicken intestinal structure and growth performance. J. Morphol. Sci.. 33:186-192.

2013

2012

Gakuya, DW;, Kiama SG;, Mbaria JM;, Mbugua PN;, Gathumbi PK, Mathiu M.  2012.  The Potential Use Of Moringa Oleifera As Poultry Feed Supplement In Kenya..
Lengarite, MI, Mbugua PN, Gachuiri CK, Kabuage LW.  2012.  Mineral Status of Sheep and Goats Grazing in the Arid Rangelands of Northern Kenya. Abstract

A study was conducted in dry and wet season to determine macro and micro mineral status of growing sheep and goats in arid rangelands of northern Kenya. Forty four, 22 each of sheep and goats (1-2 year old), randomly purchased from three herds/flocks in study area, were sacrificed for whole liver and 12th right and left ribs. Homogenized liver samples pooled from all the lobes and defatted bone ash from whole left and right 12th ribs were used for determination of Ca, P, Mg, Cu, Fe, Zn and Mn status. Liver mineral analysis, showed that in sheep Cu (303 vs. 184 mg/kg DM), Zn (94.1 vs. 83 mg/kg DM) and Mn (13.2 vs. 7.5 mg/kg DM) were higher (p<0.05) in wet than dry season. In goats, season had no effect on Cu (274.28 vs. 236 mg/kg DM) and Fe (183 vs. 171 mg/kg DM), but had significant influence on Zn (102 vs. 126 mg/kg DM) and Mn (13.6 vs. 6.8 mg/kg DM). Sheep grazing in different pastures showed variation (p<0.05) in hepatic Zn, Cu and Mn contents, while goat varied (p<0.05) in hepatic Cu, Fe and Mn concentrations. Rib analysis indicated that season had significant effect (p<0.05) on sheep and goats DFF% ash. The rib Ca (359 vs. 362 mg/g), P (157 vs. 147 mg/g) and Mg (9.56 vs. 8.54 mg/g) contents of sheep was not influenced by season and grazing area (p<0.05), whereas goats rib Ca (360 vs. 326 mg/g), P (142 vs. 165 mg/g) content was affected by season and grazing area (p<0.05), but Mg showed no seasonal variation. In the wet season, liver and bone tissue of sheep and goats indicated adequate body status of Ca, Mg, Cu, Zn, Fe and Mn. However, in the dry season, sheep showed deficient levels of Zn, goats in Cu, while both species suffered from low liver Mn and rib Zn reserves. With the exception of P which was marginal in all seasons, mineral deficiencies affected animals mostly in the dry season. The liver and rib bone of sheep and goats has demonstrated seasonal fluctuation in tissue mineral reserve. Evaluation of specific minerals in different periods and body pools can be useful in the diagnosis of mineral status of animals. It can be concluded that, sheep and goats would benefit from P, Cu, Zn and Mn supplementation, particularly in the dry season.

2011

Mbugua, PN.  2011.  Mbugua.

2007

Njenga, M, Kimani S, Romney D, Karanja N.  2007.  Nutrient recovery from solid waste and linkage to urban and peri-urban agriculture in Nairobi, Kenya. Abstract

Community based composting practices were studied in Nairobi using a questionnaire, and the quality of composts produced characterised for nutrient and heavy metal contents. An inventory of the composting groups was made using existing databases. The quality of different manure types and their sources were also noted. The movement of Municipal Solid Waste (MSW) for composting and its outlets, as well as manures, were investigated through mapping of market and ecological chains. The study objectives aimed at documenting group dynamics in community based composting activities, quality of composts as influenced by different composting techniques and mapping of the movement of organic resources for soil fertility improvement. It was established that composting practices used by the community-based organisations (CBO’s), had an impact on the quality of the composts, which was found to be lower than the recommended international standards. The CBO’s involved regard composting activities as a business enterprise from where their livelihood comes. Low market opportunities (low demand) for their product have hampered their growth and development.. It was also observed that there is an inflow of organic nutrients in the form of animal manure imported into the city from the arid and semi arid livestock producing areas, some of which are as far as 300 km from Nairobi. In contrast, there is a big challenge in the disposal of the same product within the informal settlement areas of the city

2004

Woyengo, TA;, Gachuiri CK;, Wahome RG;, Mbugua PN.  2004.  Economic evaluation of increasing the energy value of Zea mays stover by urea treatment..
Mathiu, PM;, Mbugua PM;, Mugweru J.  2004.  Biological activity screening of some Kenyan medicinal plants..

2002

2001

NJENGA, PROFMBUGUAPAUL.  2001.  Mbugua, P. N. S.N. Muturi, L.N. Kimenye and C. Gor (2001). Role of partnerships in agricultural technology transfer and adoption in eastern Africa.. In proceedings 4th biennial Faculty of veterinary Medicine, university of Nairobi, conference. : Heinrich Boll Foundation.

2000

NJENGA, PROFMBUGUAPAUL.  2000.  Muia, J. M. K., S Tamminga, P.N. Mbugua and J. N. Kariuki (2000). The nutritive value of napier grass (Pennisetum purpureum) and its potential for milk production with or without supplementation: a review. Tropical Science 40: 109-131. In proceedings 4th biennial Faculty of veterinary Medicine, university of Nairobi, conference. : Heinrich Boll Foundation.
NJENGA, PROFMBUGUAPAUL.  2000.  Muia, J.M. K, S. Tamminga. P.N. Mbugua and J.N. Kariuki (2000). Prediction of yield and digestibility on napier grass (Pennisetum purpureum) from maturity, leaf: stem ratio and laboratory analyses. Tropical Science 40: 32-39. In proceedings 4th biennial Faculty of veterinary Medicine, university of Nairobi, conference. : Heinrich Boll Foundation.

1999

Mbugua, PN.  1999.  Miscellaneous Napier grass reports.
NJENGA, PROFMBUGUAPAUL.  1999.  Muia, J. M. K., S. Tamminga, P. N. Mbugua and J. N. Kariuki (1999): Optimal stage of maturity for feeding napier grass (Pennisetum purpureum) to dairy cows in Kenya. Tropical grasslands 33: 182-190. In proceedings 4th biennial Faculty of veterinary Medicine, university of Nairobi, conference. : Heinrich Boll Foundation.
NJENGA, PROFMBUGUAPAUL.  1999.  Njoroge, E. M., J.M. Maribei and P.N. Mbugua (1999). Water intoxication in cattle. S. Afr. Vet Ass 70: 177-179. In proceedings 4th biennial Faculty of veterinary Medicine, university of Nairobi, conference. : Heinrich Boll Foundation.

1998

Kabuage, LW;, Mbugua PN;, Mitaru BN;, Ngatia TA.  1998.  Utilisation Of Minerals In Grain Amaranth Diets By Broiler Chickens.
Mbugua, PN;, Gachuiri. CK.  1998.  Livestock Production In Nyanza Province: Dairy Production..
NJENGA, PROFMBUGUAPAUL.  1998.  Mbugua, P. N. and L.W. Kabuage (1998): Sustainable use of grasslands, forests, grains and crop residues.. In proceedings: VIIIth World conference on animal production. Seoul, Korea. : Heinrich Boll Foundation.
NJENGA, PROFMBUGUAPAUL.  1998.  Njue, S. W. P.N. Mbugua, M.N. Kyule and J.M. Gathuma (1998). Risk factors associated with ascites in commercial broiler production in peri-urban areas of Nairob. The Kenya Veterinarian 23: 163-165. In proceedings 4th biennial Faculty of veterinary Medicine, university of Nairobi, conference. : Heinrich Boll Foundation.
NJENGA, PROFMBUGUAPAUL.  1998.  Maribei, J. M., E. M Njoroge and P. N Mbugua (1998). Clinical Manifestation of experimental water intoxication in calves. Indian J. Anim sci. 68:531-532. In proceedings 4th biennial Faculty of veterinary Medicine, university of Nairobi, conference. : Heinrich Boll Foundation.

1997

NJENGA, PROFMBUGUAPAUL.  1997.  Njoroge, E. M, J. M. Maribei and P. N. Mbugua (1997): Pathological changes in calves that died from experimental water intoxication. Ondersterpoort J. Vet. Res. 64: 111-114. In proceedings: VIIIth World conference on animal production. Seoul, Korea. : Heinrich Boll Foundation.
NJENGA, PROFMBUGUAPAUL.  1997.  Jacob, J. P., B. N. Mitaru, P. N. Mbugua and R. Blair (1997): The nutritive value of Kenyan sorghum for poultry. Trop. Sci. 37: 43-48. In proceedings: VIIIth World conference on animal production. Seoul, Korea. : Heinrich Boll Foundation.

1996

Kabuage, LW;, Mbugua PN;, Mitaru BN;, Ngatia TA.  1996.  Effect Of Amino Acid Supplementation Of Raw And Thermal Processed Amaranth Diets On Broiler.
NJENGA, PROFMBUGUAPAUL.  1996.  Jacob, J. P., B. N. Mitaru, P. N. Mbugua and R. Blair (1996): The feeding value of Kenya sorghum, sunflower seed cake and sesame seed cake for broilers and layers. Anim Feed Sci. and Tech. 61:41-56. In proceedings: VIIIth World conference on animal production. Seoul, Korea. : Heinrich Boll Foundation.

1995

Mbugua, PN;, Gachuiri CK;, Wahome RG;, Abate AA;, Wanyoike MM;, Munyua SJM;, Kamau JMZ.  1995.  Development of feed supplementation strategies for improving productivity of dairy cattle in Kenya.

1994

Mbugua, PN;, Wahome RG.  1994.  Formulae for Poultry, pigs and dairy cattle feeds.

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