• 455 Citations
  • 12 h-Index
20022017
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Research Output 2002 2017

  • 455 Citations
  • 12 h-Index
  • 65 Article
  • 2 Review article
2017
5 Citations (Scopus)
Setaria verticillata
Acacia karroo
Acacia
grass hay
liveweight gain
2016
2 Citations (Scopus)

Blood profiles of indigenous Pedi goats fed varying levels of Vachellia karroo leaf meal in Setaria verticillata hay-based diet

Brown, D., Ng'ambi, J. W., Norris, D. & Mbajiorgu, F. E., Jan 1 2016, In : South African Journal of Animal Sciences. 46, 4, p. 432-440 9 p.

Research output: Contribution to journalArticle

Vachellia
Setaria verticillata
hay
goats
blood
3 Citations (Scopus)

Carcass and meat quality characteristics of South African indigenous chickens

Motsepe, R., Mabelebele, M., Norris, D., Brown, D., Ngambi, J. & Ginindza, M., Aug 1 2016, In : Indian Journal of Animal Research. 50, 4, p. 580-587 8 p.

Research output: Contribution to journalArticle

carcass quality
Meat
meat quality
Chickens
chickens
3 Citations (Scopus)

Feed potential of acacia karroo leaf meal for communal goat production in southern africa: A review

Brown, D., N’Gambi, J. W. & Norris, D., Aug 1 2016, In : Journal of Animal and Plant Sciences. 26, 4, p. 1178-1186 9 p.

Research output: Contribution to journalReview article

Acacia karroo
meals (menu)
Southern Africa
goats
leaves
6 Citations (Scopus)

Voluntary intake and palatability indices of pedi goats fed different levels of acacia karroo leaf meal by cafeteria method

Brown, D., Ngambi, J. W. & Norris, D., Feb 1 2016, In : Indian Journal of Animal Research. 50, 1, p. 41-47 7 p.

Research output: Contribution to journalArticle

Acacia karroo
Acacia
voluntary intake
palatability
Goats
2015
5 Citations (Scopus)
drought
livestock
farmer
climate change
farmer's association
4 Citations (Scopus)

Effects of coriander (Coriandrum sativum L.) seed powder and extract on performance of broiler chickens

Naeemasa, M., Alaw Qotbi, A. A., Seidavi, A., Norris, D., Brown, D. & Ginindza, M., Jan 1 2015, In : South African Journal of Animal Sciences. 45, 4, p. 371-378 8 p.

Research output: Contribution to journalArticle

Coriandrum sativum
powders
broiler chickens
extracts
seeds
6 Citations (Scopus)

Growth and haematological response of indigenous venda chickens aged 8 to 13 weeks to varying dietary lysine to energy ratios

Alabi, O. J., Ng'ambi, J. W., Mbajiorgu, E. F., Norris, D. & Mabelebele, M., Jan 1 2015, In : Journal of Animal Physiology and Animal Nutrition. 99, 3, p. 436-441 6 p.

Research output: Contribution to journalArticle

Lysine
Chickens
lysine
South Africa
chickens
1 Citation (Scopus)

Morphological differentiation of indigenous goats in different agro-ecological zones of vhembe district, Limpopo province, South Africa

Selolo, T. C., Mashiloane, M. L., Norris, D., Ng’ambi, J. W. & Brown, D., Jan 1 2015, In : Indian Journal of Animal Research. 49, 4, p. 527-531 5 p.

Research output: Contribution to journalArticle

agroecological zones
South Africa
Goats
goats
Discriminant Analysis
4 Citations (Scopus)

Path coefficient and path analysis of body weight and biometrie traits in indigenous goats

Norris, D., Brown, D., Moela, A. K., Selolo, T. C., Mabelebele, M., Ngambi, J. W. & Tyasi, T. L., Jan 1 2015, In : Indian Journal of Animal Research. 49, 5, p. 573-578 6 p.

Research output: Contribution to journalArticle

Goats
goats
Body Weight
body weight
body length
2014
13 Citations (Scopus)

Comparison of gastrointestinal tracts and pH values of digestive organs of ross 308 broiler and indigenous venda chickens fed the same diet

Mabelebele, M., Alabi, O. J., Ngambi, J. W., Norris, D. & Ginindza, M. M., Jan 1 2014, In : Asian Journal of Animal and Veterinary Advances. 9, 1, p. 71-76 6 p.

Research output: Contribution to journalArticle

Ross (chicken breed)
gastrointestinal system
Gastrointestinal Tract
Chickens
South Africa
13 Citations (Scopus)

Effects of different levels of coriander (coriandrum sativum) seed powder and extract on serum biochemical parameters, microbiota, and immunity in broiler chicks

Hosseinzadeh, H., Alaw Qotbi, A. A., Seidavi, A., Norris, D. & Brown, D., Dec 28 2014, In : Scientific World Journal. 2014, 628979.

Research output: Contribution to journalArticle

Coriandrum
Microbiota
Birds
immunity
Powders
4 Citations (Scopus)

Genetic selection for docility: A review

Norris, D., Ngambi, J. W., Mabelebele, M., Alabi, O. J. & Benyi, K., 2014, In : Journal of Animal and Plant Sciences. 24, 2, p. 374-379 6 p.

Research output: Contribution to journalArticle

temperament
livestock
animal breeding
carcass quality
genetic variance
3 Citations (Scopus)

Use of factor scores for predicting body weight from linear body measurements in three South African indigenous chicken breeds

Malomane, D. K., Norris, D., Banga, C. B. & Ngambi, J. W., Feb 1 2014, In : Tropical Animal Health and Production. 46, 2, p. 331-335 5 p.

Research output: Contribution to journalArticle

chicken breeds
anthropometric measurements
Chickens
Body Weight
body weight
2013
5 Citations (Scopus)
carcass characteristics
South Africa
chickens
energy
feed intake

Effect of ascorbic acid supplementation to the diets of indigenous venda hens on productivity of their progenies aged 8 to 13 weeks

Adesola, A. A., Ng'ambi, J. W. & Norris, D., Jun 2013, In : Indian Journal of Animal Research. 47, 2, p. 97-104 8 p.

Research output: Contribution to journalArticle

Ascorbic Acid
hens
South Africa
ascorbic acid
Diet
8 Citations (Scopus)

Effects of egg weight on hatchability, chick hatch-weight and subsequent productivity of indigenous venda chickens in polokwane, South Africa

Ng'ambi, J. W., Thamaga, M. W., Norris, D., Mabelebele, M. & Alabi, O. J., 2013, In : South African Journal of Animal Sciences. 43, 5

Research output: Contribution to journalArticle

egg weight
South Africa
chicks
chickens
chicken eggs

Effects of urea-treated fibrous diets on nutrient intake, digestibility, performance and haematological parameters of Yankasa rams

Alabi, J. O., Arigbede, M., Ng'ambi, J., Norris, D., Shiawoya, E. & Onyekachi, S., Aug 1 2013, In : Tropical Animal Health and Production. 45, 6, p. 1349-1355 7 p.

Research output: Contribution to journalArticle

nutrient intake
rams
Urea
urea
digestibility
3 Citations (Scopus)

Estimates of lactation curve parameters for Bonsmara and Nguni cattle using the weigh-suckle-weigh technique

Maiwashe, A., Nengovhela, N. B., Nephawe, K. A., Sebei, J., Netshilema, T., Mashaba, H. D., Nesengani, L. & Norris, D., Sep 25 2013, In : South African Journal of Animal Sciences. 43, 5

Research output: Contribution to journalArticle

Bonsmara
lactation curve
milk production
cattle
beef
1 Citation (Scopus)

Heterosis and combining ability for body weight in a diallel cross of three chicken genotypes

Siwendu, N. A., Norris, D., Ngambi, J. W., Shimelis, H. A. & Benyi, K., Jan 1 2013, In : Tropical Animal Health and Production. 45, 4, p. 965-970 6 p.

Research output: Contribution to journalArticle

Hybrid Vigor
diallel analysis
heterosis
Ross (chicken breed)
Chickens
2 Citations (Scopus)

Role of goats in food security, poverty alleviation and prosperity with special reference to Sub-Saharan Africa: A review

Ngambi, J. W., Alabi, O. J. & Norris, D., Feb 1 2013, In : Indian Journal of Animal Research. 47, 1, p. 1-9 9 p.

Research output: Contribution to journalReview article

Food Supply
Africa South of the Sahara
Poverty
Sub-Saharan Africa
poverty
2012
1 Citation (Scopus)

Effect of dietary vitamin D 3 supplementation on meat tenderness, juiciness and flavour of indigenous venda cocks

Mabelebele, M., Ng'ambi, J. W. & Norris, D., Jan 3 2012, In : Asian Journal of Animal and Veterinary Advances. 7, 2, p. 193-198 6 p.

Research output: Contribution to journalArticle

meat tenderness
cholecalciferol
roosters
Cholecalciferol
juiciness
15 Citations (Scopus)

Effect of egg weight on hatchability and subsequent performance of Potchefstroom Koekoek chicks

Alabi, O. J., Ng'ambi, J. W., Norris, D. & Mabelebele, M., 2012, In : Asian Journal of Animal and Veterinary Advances. 7, 8, p. 718-725 8 p.

Research output: Contribution to journalArticle

egg weight
Ovum
chicks
Eggs
Weights and Measures
11 Citations (Scopus)

Effect of egg weight on physical egg parameters and hatchability of indigenous venda chickens

Alabi, O. J., Ng'ambi, J. W. & Norris, D., 2012, In : Asian Journal of Animal and Veterinary Advances. 7, 2, p. 166-172 7 p.

Research output: Contribution to journalArticle

egg weight
Ovum
Chickens
South Africa
chickens
1 Citation (Scopus)

Genetic analysis of body weights of individually fed beef bulls in South Africa using random regression models.

Selapa, N. W., Nephawe, K. A., Maiwashe, A. & Norris, D., 2012, In : Genetics and molecular research : GMR. 11, 1, p. 271-276 6 p.

Research output: Contribution to journalArticle

South Africa
Body Weight
Weaning
Red Meat
Age Groups
9 Citations (Scopus)

Nutrient composition and tannin contents of forage sorghum, cowpea, lablab and mucuna hays grown in limpopo province of South Africa

Gwanzura, T., Ngambi, J. W. & Norris, D., Aug 27 2012, In : Asian Journal of Animal Sciences. 6, 5, p. 256-262 7 p.

Research output: Contribution to journalArticle

Lablab
Mucuna
cowpeas
tannins
nutrient content
2011

Can It be achieved? Partnering towards improving livelihoods in the Ganspan settlement, norther n Cape province, South Africa

Norris, D., van Zyl, E. C., Hashe, W. T., Mafuma, M. S., Senyolo, M. P., Mngomezulu, S. P., Enserink, D., Ngambi, J. W. & Mbajiorgu, C. A., Oct 24 2011, In : Africa Development. 36, 1, p. 49-62 14 p.

Research output: Contribution to journalArticle

livelihood
stakeholder
agriculture
participatory rural appraisal
institutional development
2 Citations (Scopus)

Effect of Garcinia cambogia leaf meal supplementation level at finisher stage on productivity and juiciness of male ross 308 broiler chickens

Sebola, N. A., Ng'ambi, J. W., Norris, D. & Mbajiorgu, C. A., 2011, In : Asian Journal of Animal and Veterinary Advances. 6, 7, p. 723-730 8 p.

Research output: Contribution to journalArticle

Garcinia cambogia
Ross (chicken breed)
Garcinia gummi-guta
juiciness
Meals
5 Citations (Scopus)
Mucuna
voluntary intake
Sorghum
palatability
Goats
4 Citations (Scopus)

Effects of strain and different skip-a-day feed restriction periods on the growth performance of broiler chickens

Benyi, K., Acheampong-Boateng, O. & Norris, D., Apr 1 2011, In : Tropical Animal Health and Production. 43, 4, p. 871-876 6 p.

Research output: Contribution to journalArticle

restricted feeding
Ross (chicken breed)
Chickens
growth performance
broiler chickens
2 Citations (Scopus)

Genetic parameter estimates for live animal ultrasound measures of carcass traits in South African Angus cattle

Seroba, M. M., Maiwashe, A., Nephawe, K. A. & Norris, D., 2011, In : South African Journal of Animal Sciences. 41, 3, p. 243-249 7 p.

Research output: Contribution to journalArticle

Angus
ribs
carcass characteristics
fat thickness
intramuscular fat
11 Citations (Scopus)

Milk production of three exotic dairy goat genotypes in limpopo province, South Africa

Norris, D., Ngambi, J. W., Benyi, K. & Mbajiorgu, C. A., Jan 1 2011, In : Asian Journal of Animal and Veterinary Advances. 6, 3, p. 274-281 8 p.

Research output: Contribution to journalArticle

Toggenburg
dairy goats
South Africa
Goats
milk production
2 Citations (Scopus)

The feeding value of four cowpewa hay cultivare and effect of their supplementation on intake and digestibility of buffalo grass hay fed to pedi goats

Ravhuhali, K. E., Ng'ambi, J. W., Norris, D. & Ayodele, V. I., Aug 15 2011, In : Asian Journal of Animal and Veterinary Advances. 6, 9, p. 909-922 14 p.

Research output: Contribution to journalArticle

grass hay
Buffaloes
Poaceae
Goats
hay
13 Citations (Scopus)

Voluntary feed intake and nutrient composition in chickens

Mbajiorgu, C. A., Ng'ambi, J. W. & Norris, D. D., Jan 1 2011, In : Asian Journal of Animal and Veterinary Advances. 6, 1, p. 20-28 9 p.

Research output: Contribution to journalArticle

voluntary intake
Chickens
nutrient content
feed intake
chickens
2010
2 Citations (Scopus)
grass hay
in vitro digestibility
cowpeas
buffaloes
South Africa
1 Citation (Scopus)

Effect of dietary ascorbic acid supplementation level on productivity, mortality, and carcass characteristics of Venda chickens

Malebane, I. M., Ng'ambi, J. W., Norris, D. & Mbajiorgu, C., Dec 1 2010, In : Tropical Animal Health and Production. 42, 8, p. 1711-1718 8 p.

Research output: Contribution to journalArticle

carcass characteristics
Ascorbic Acid
Chickens
South Africa
ascorbic acid
10 Citations (Scopus)

Estimation of the additive and dominance variances in SA Duroc pigs

Norris, D., Varona, L., Ngambi, J. W., Visser, D. P., Mbajiorgu, C. A. & Voordewind, S. F., Jun 1 2010, In : Livestock Science. 131, 1, p. 144-147 4 p.

Research output: Contribution to journalArticle

Bayes Theorem
Duroc
Parity
dominance (genetics)
Swine
12 Citations (Scopus)

Response of Ross 308 and Hubbard broiler chickens to feed removal for different durations during the day

Benyi, K., Acheampong-Boateng, O., Norris, D. & Ligaraba, T. J., Apr 14 2010, In : Tropical Animal Health and Production. 42, 7, p. 1421-1426 6 p.

Research output: Contribution to journalArticle

Hubbard (chicken breed)
Ross (chicken breed)
Weight Gain
Chickens
broiler chickens
2009

Analysis of feed intake of individually fed beef bulls using random regression models

Selapa, N. W., Nephawe, K. A., Maiwashe, A., Norris, D. & Ngambi, J. W., Jan 1 2009, In : Journal of Applied Animal Research. 36, 2, p. 223-226 4 p.

Research output: Contribution to journalArticle

beef bulls
feed intake
South Africa
Weaning
Linear Models
9 Citations (Scopus)

An analysis of the genetic relationship between udder health and udder conformation traits in South African Jersey cows

Dube, B., Dzama, K., Banga, C. B. & Norris, D., Apr 1 2009, In : Animal. 3, 4, p. 494-500 7 p.

Research output: Contribution to journalArticle

Jersey
udders
genetic relationships
cows
body conformation
6 Citations (Scopus)

Effect of dietary lysine to crude protein ratio on performance of male Ross 308 broiler chickens

Ng'ambi, J. W., Maoba, S. M., Norris, D., Malatje, M. S. & Mbajiorgu, C. A., Jan 1 2009, In : Tropical Animal Health and Production. 41, 1, p. 11-16 6 p.

Research output: Contribution to journalArticle

Ross (chicken breed)
Lysine
Chickens
lysine
crude protein
19 Citations (Scopus)

Effect of different feed restriction regimes during the starter stage on productivity and carcass characteristics of male and female ross 308 broiler chickens

Novel, D. J., Ng'ambi, J. W., Norris, D. & Mbajiorgu, C. A., Jan 1 2009, In : International Journal of Poultry Science. 8, 1, p. 35-39 5 p.

Research output: Contribution to journalArticle

Ross (chicken breed)
restricted feeding
carcass characteristics
Chickens
broiler chickens
8 Citations (Scopus)

Effect of Hoodia gordonii meal supplementation at finisher stage on productivity and carcass characteristics of Ross 308 broiler chickens

Mohlapo, T. D., Ng'ambi, J. W., Norris, D. & Malatje, M. M., Sep 1 2009, In : Tropical Animal Health and Production. 41, 7, p. 1591-1596 6 p.

Research output: Contribution to journalArticle

Ross (chicken breed)
Hoodia gordonii
carcass characteristics
Meals
Chickens
1 Citation (Scopus)

Effect of pre-weaning selection on estimates of genetic parameters and breeding values for post-weaning growth rate of beef bulls on test

Mashiloane, M. L., Nephawe, K. A., Maiwashe, A., Norris, D. & Ngambi, J. W., Dec 1 2009, In : Tropical Animal Health and Production. 41, 8, p. 1723-1730 8 p.

Research output: Contribution to journalArticle

beef bulls
Weaning
breeding value
Breeding
weaning
5 Citations (Scopus)
Ross (chicken breed)
Acacia karroo
Acacia
South Africa
carcass characteristics

Estimates of additive and non-additive genetic variances with varying level of inbreeding

Norris, D., Ngambi, W. & Mbajiorgu, C. A., Jul 23 2009, In : Journal of Biological Sciences. 9, 3, p. 254-258 5 p.

Research output: Contribution to journalArticle

Inbreeding
Population
17 Citations (Scopus)

Genetic parameter estimates for tick resistance in Bonsmara cattle

Budeli, M. A., Nephawe, K. A., Norris, D., Selapa, N. W., Bergh, L. & Maiwashe, A., Dec 1 2009, In : South African Journal of Animal Sciences. 39, 4, p. 321-327 7 p.

Research output: Contribution to journalArticle

Bonsmara
ticks
cattle
tick infestations
genetic variance
7 Citations (Scopus)
Acacia
tannins
South Africa
rabbits
diet
11 Citations (Scopus)

The response of Ross 308 and Hybro broiler chickens to early and late skip-a-day feed restriction

Benyi, K., Acheampong-Boateng, O., Norris, D., Mathoho, M. & Mikasi, M. S., Dec 1 2009, In : Tropical Animal Health and Production. 41, 8, p. 1707-1713 7 p.

Research output: Contribution to journalArticle

Ross (chicken breed)
restricted feeding
Weight Gain
Birds
Chickens
2008
8 Citations (Scopus)
Acacia
grass hay
Buffaloes
Poaceae
polyethylene glycol