Browsing Department of Animal Sciences by Title
Now showing items 1-20 of 20
-
Beef production in the arid and semi-arid lands of Kenya: Constraints and prospects for research and development
(IP Publishing Ltd, 2009-09-01)Most of Kenya (80%) is classified as arid and semi-arid. The climatic conditions in these regions are so harsh for crops that only livestock production can thrive. These regions provide the bulk of beef consumed in the ... -
Biotechnology in livestock production: Overview of possibilities for Africa
(AJOL, 2008)Livestock production is expected to grow tremendously in line with the projected demand for animal products. Therefore, the methods of livestock production must change to allow for efficiency and improvement in productivity. ... -
Breeding objectives for the Boran breed in Kenya: Model development and application to pasture-based production systems
(Wiley Online Library, 2006-04)Bio-economic profit models were developed and applied to evaluate biological and economic variables that characterize production systems utilizing the Boran breed. Production systems were described according to their sale ... -
Economic values for production and functional traits and assessment of their influence on genetic improvement in the Boran cattle in Kenya
(Wiley Online Library, 2006-01-11)Economic values for production (sale weight in steers, SWs, kg and heifers, SWh, kg; dressing percentage, DP; consumable meat percentage, CMP and milk yield, MY, kg) and functional (cow weight, CoWT, kg; cow survival rate, ... -
Effect of exogenous enzymes and Salix babylonica extract or their combination on haematological parameters in growing lambs
(Animal and Feed Sciences, 2012-11-15)The aim of this study was to compare the use of exogenous enzyme preparations (EZ) and/or Salix babylonica extract (SB) or their combination as feed additives on some haematological parameters in growing lambs. Twenty ... -
Effect of exogenous xylanase on rumen in vitro gas production and degradability of wheat straw
(Japanese Society of Animal Science, 2015)The objective of this study was to determine effects of xylanase on in vitro gas production (GP) and in sacco degradability of wheat straw. Rumen fluid was obtained from three Mongolian native goats fitted with permanent ... -
Effect of fibrolytic enzyme products at different levels on in vitro ruminal fermentation of low quality feeds and total mixed ration.
(Journal of Animal and Plant Sciences, 2014)This study aimed to evaluate the effects of cellulase and xylanase plus enzymes on in vitro ruminal fermentation of Eragrostis curvura hay, maize stover and a total mixed ration (TMR) at six levels of application. The feed ... -
Effects of Exogenous Cellulase Source on In Vitro Fermentation Characteristics and Methane Production of Crop Straws and Grasses
(Animal Nutrition and Feed Technology, 2013)In vitro fermentation experiments were conducted to investigate the effects of 3 sources of exogenous cellulase products (EC) at 4 dose rates (DR) (0, 12, 37 and 62 IU/g of DM) on degradation of forage and methane production ... -
Effects of exogenous enzymes on in vitro gas production kinetics and ruminal fermentation of four fibrous feeds
(Elsevier, 2013-01-31)This study was conducted to investigate effects of increasing doses: 0 (control), 6 (low), 12 (medium) and 24 (high) mg/g DM of ZADO® enzyme preparation mixture (ENZ) on in vitro gas production (GP) and some ruminal ... -
Factors that influence the efficiency of beef and dairy cattle recording system in Kenya: A SWOT–AHP analysis
(Springer Science+Business Media, 2010-07-20)Abstract Animal recording in Kenya is characterised by erratic producer participation and high drop-out rates from the national recording scheme. This study evaluates factors influencing efficiency of beef and dairy ... -
Genetic and economic evaluation of a basic breeding programme for Kenya Boran cattle.
(Springer, 2009-08-27)The objective of this study is to describe the present organisational structure of Boran cattle breeding and develop a model breeding programme using a deterministic approach under the current structure of the Boran Cattle ... -
Genetic evaluation of growth of Dorper sheep in semi-arid Kenya using random regression models
(ELSELVIER, 2010-10)Data consisting of 8922 weight records from 2642 Dorpersheep from 20 to 380 days of age spanning 1981–1996 were used to model the growth trajectory using randomregression (RR) and estimate genetic parameters. The independent ... -
In vitro Ruminal Gas Production Kinetics of Four Fodder Trees Ensiled With or Without Molasses and Urea
(Elsevier Ltd., 2013-07-12)This study investigated if the addition of urea (U), molasses (M) or their 1:1 (v/v) mixture during ensiling increases the nutritional value of forage from four fodder trees (Prunus persica, Leucaena esculenta, Acacia ... -
Influence of exogenous enzymes ensiled with orange pulp on digestion and growth performance in lambs
(Elsevier, 2011-04-21)Twenty-four Ossimi male lambs were used to evaluate effects of inclusion of ensiled orange pulp (EOP) in lamb diets either with or without addition of exogenous enzymes (ENZ) of ZADO® on digestion and growth performance. ... -
Mineral status of dual-purpose goats and forage in Western Kenya
(small ruminant research, 1989-04)Concentrations of minerals in blood of dual-purpose goats (DPG) and forages, commonly consumed by goats in western Kenya, were analyzed. Daily mineral intake from forage was estimated using dry matter intake of DPG in that ... -
On the analysis of Canadian Holstein dairy cow lactation curves using standard growth functions
(Elsevier Inc., 2015-01-30)Six classical growth functions (monomolecular, Schumacher, Gompertz, logistic, Richards, and Morgan) were fitted to individual and average (by parity) cumulative milk production curves of Canadian Holstein dairy cows. The ... -
A participatory approach to the evaluation of the efficiency of animal recording practices based on institutional analysis and development framework
(Cambridge, 2010-05-10)Animal recording is an interactive process that involves several practices. The efficiency of the process is essential to ensure the utility of outcomes necessary for sustainable participation. Most evaluation approaches ... -
Research partnerships in relation to topics in animal breeding and genetics1
(2006-08)A total of 1,628 papers presented at the sixth and seventh World Congresses on Genetics Applied to Livestock Production were categorized into 20 topics according to research subjects. The aim was to determine, in relation ... -
Sustainable community-based organizations for the genetic improvement of livestock in developing countries
(IP Publishing Ltd, 2005-12-01)Livestock industries in developing countries face numerous constraints that have often hampered the establishment and sustainability of national genetic-improvement programmes. One major inadequacy in a number of programmes ... -
Trait improvement and monetary returns in alternative closed and open nucleus breeding programmes for Boran cattle reared in semi-arid tropics
(ELSEVIER, 2011-04)This paper aimed at evaluating closed and open nucleus schemes for Boran cattle based on genetic and economic merits of three alternative breeding programmes; 1) breeding programme closed to the members of the Boran Cattle ...