Research Results - (PDF, 101 mb) - USAID
Research Results - (PDF, 101 mb) - USAID
Research Results - (PDF, 101 mb) - USAID
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Toggenburg x 1/4 Anglo Nubian x 1/4 East<br />
African x 1/4 Galla).<br />
* Milk and meat production and adaptability<br />
(especially resistance to internal parasites) are<br />
the major selection criteria. The target KDPG<br />
for the smallholder has a milk potential of 4 kg/<br />
day at peak lactation and amature weight of 40<br />
kg.<br />
2. Determination of the genetic mode of inheritance<br />
of resistance to Haemonchus cordortusand<br />
development of a resistant line of KDPG.<br />
Problem Statement and Approach<br />
Developing a new breed is a relatively<br />
long-term process and the time investment<br />
must, therefore, be weighed against needs,<br />
benefits, and alternatives. At the initiation of<br />
the SR-CRSP project in Kenya, four key criteria<br />
for an acceptable and sustainable Kenya Dual<br />
Purpose goat (KDPG) were identified:<br />
1. Survey results showed that a dual purpose<br />
goat was critically needed in the high potential<br />
area of Western Kenya and that, if the forage<br />
resource was developed to its potential, it would<br />
be adequate to support the nutritional requirements<br />
of such a goat.<br />
2. On-farm and on-station studies indicated that<br />
indigenous goats were too low in genetic potential<br />
for growth and milk yield to be an acceptable<br />
base for developing a suitable dual purpose<br />
goat.<br />
3. From experience and research data, it was<br />
evident that exotic dairy breeds were not viable<br />
under the nutritional and management conditions<br />
of the smallholder farmer in Western<br />
Kenya.<br />
4. Although early research demonstrated that<br />
the F,cross between the indigenous and exotic<br />
goats performed satisfactorily, a structured<br />
crossbreeding program was not feasible for<br />
recommending to smallholder farmers.<br />
These four criteria indicated that the<br />
development of a new breed was the best<br />
strategy, because a breed:<br />
* provides a lasting genetic resource;<br />
* can be effectively selected to improve performance<br />
to suit existing conditions; and<br />
* can be adapted to conditions as they change in<br />
the future.<br />
TxE TxG NxE NxG<br />
TE TG NE NG<br />
Z ::-<br />
TNEG TNEG TNEG TNEG<br />
-ijI A"-<br />
SELECTION<br />
T - Toggenburg purebred males<br />
N - Anglo Nubian purebred males<br />
E- East African purebred females<br />
G- Galla purebred females<br />
Figure 1.Formation of the Kenya Dual Purpose Goat.<br />
Therefore, the breeding program in Figure 1 was<br />
designed and implemented to focus on the<br />
genetic aspects of producing a low maintenance<br />
and high milk-producing KDPG for Western<br />
Kenya, which could be adapted to other areas of<br />
Kenya.<br />
Critical to the current phase of stabilization<br />
and selection of an acceptable and sustainable<br />
breed are the nu<strong>mb</strong>ers of four-way cross<br />
(KDPG) animals available from which a breed<br />
can be established with the required characteristics.<br />
Currently, there are approximately 329 F,<br />
and 155 KDPG does at Ol'Magogo. Projections<br />
are that there will be approximately 400-500<br />
KDPG does by 1993, if the current breeding<br />
strategy is followed. Efforts to optimize husbandry<br />
practices to minimize kid losses are<br />
being implemented to maximize nu<strong>mb</strong>ers of<br />
animals. Body weights and weight gains are<br />
measured on all kids. Reproductive perfor<br />
5