Livestock Research for Rural Development 18 (6) 2006 Guidelines to authors LRRD News

Citation of this paper

Effect of supplementation with Kapok (Ceiba pentandra) tree foliage and Ivermectin injection on growth rate and parasite eggs in faeces of grazing goats in farmer households

Theng Kouch, T R Preston* and Hun Hieak

Royal University of Agriculture, Cambodia
thkouch2002@yahoo.com
*UTA, Tosoly, Socorro, Santander, Colombia
trpreston@mekarn.org


Abstract

The on-farm trial was conducted during an 8-month period from February to September 2004, in Lvea Em District, Kandal province. February through May was the end of the dry season, the rains beginning in June and continuing through September with severe flooding in the last two months. Twelve farmers participated in the trial. They were allocated to 4 treatments according to a 2*2 factorial arrangement with three replications. The treatments were: G, grazing in the natural pasture only; GI, grazing and ivermectin injection; GS, grazing and supplementation with kapok foliage (Ceiba pentandra) wshen confined in the evening; and GSI, grazing, supplementation with kapok foliage and ivermectin injection). Each farmer was given 2 male goats (local breed).

Growth rates were twice as high in the dry season (range of 98 to 112 g/day than in the wet season (24 to 50 g/day), when much of the natural grazing area was flooded. Growth rates were increased by supplementation in the wet season but not in the dry season and were not affected by Ivermectin treatment in either season. Nematode egg counts in faeces were in the low to medium category (200 to 800 EPG). They were less in goats treated with Ivermectin compared with untreated controls, but were not affected by supplementation.

Supplementation with kapok foliage appears to be a viable option to improve the nutritional status of goats during periods of the year when grazing is restricted.

Key words: Ceiba pentandra, EPG, goats, growth, Ivermectin, kapok


Introduction

In Cambodia, mostly goats are owned by small-holder farmers, who raise them for meat. Usually, goat production depends on natural pasture. The traditional management system for goat production has consisted of day-time grazing and housing usually in a pen with raised floors at night-time (Sorn San 2002). Due to natural disasters, especially flooding, the natural pasture area has decreased and/or there is no grazing area. In the humid tropics, especially in the SE Asia region, another limiting factor in grazing ruminants is the high rate of internal parasite infestation (Waller 1997; Kochapakdee et al 2001).

The use of foliage from trees and shrubs in animal nutrition has focused the attention of many researchers, due to the fact that these plant resources are locally available, perennial sources of feeds (Singh 1995; Leng 1997), rich in protein and particularly appropriate for small ruminants (Chen et al 1992; Norton 1994; Kaitho 1997; Seng Sokerya and Rodriguez 2001). As well as being good sources of protein, the leaves of most trees and shrubs contain variable concentrations of condensed tannins (Getachew et al 2002). These compounds form insoluble complexes with proteins, a process which can have beneficial effects on the protein nutrition of the host (McSweeney et al 2001). Tannins are also reported to have direct anthelmintic effects against intestinal nematodes (Molan et al 2002).

The kapok tree (Ceiba pentandra) is a multipurpose plant that is well known in practice by the farmers of Cambodia and traditionally used in goat production (Theng Kouch et al 2003b). Nguyen Thi Hong Nhan (1998) reported that the DM digestibility in growing goats fed the foliage as the sole diet was 76% and that growth rates (74 g/day) were similar to what was obtained with foliage of Leucaena. According to Theng Kouch et al (2003), the growth rate of grazing goats in village condition is 50g/day and 20g/day, before and after flooding. It was observed that during the periods of flooding, the farmers often supplemented their goats with foliage from the kapok tree.

Objective

The objective of this research was to evaluate the relative effectiveness of anthelmintic treatment and supplementary feeding of foliage from the kapok tree, on the growth performance of goats raised under smallholder farmer conditions.

Hypothesis

Supplementation with foliage from the kapok tree and Ivermectin injection will give the same result in control of intestinal parasites and growth of goats under farmer conditions, and both will be better than grazing alone.


Material and Methods

Location and duration

The experiment was conducted with farmers who were living in Pearm Okgna Ong commune, Lvear Em district in Kandal Province, about 25 km from Phnom Penh city, . The research took place over an 8 month period, commencing on 1st February 2004 and finishing at the end of August 2004. February through April were the final months of the dry season, with the rains beginning in May continuing until October.

Experimental animal and design

Twenty-four non-castrated male goats were purchased from local farmers at about 3 months of age, and 11.3±2.67 kg live weight. They were allocated to 12 farmers according to a combination of 4 treatments arranged in three blocks, on the basis of live weight. The treatments, arranged as a 2*2 factorial, were:

Supplementation and Ivermecin injection

The kapok tree foliage was given fresh after being collected by the farmers. It was offered on an ad libitum basis (about 50% above recorded intake) in the evening (about 4 to 5pm) by hanging bunches of the foliage on the pen wall (Photo 1), simulating the way traditionally used by the farmers. The Ivermectin was injected at the beginning of the experiment and repeated every two months. The dose rate was 1 ml/25 kg live weight.

Photo 1.  The kapok foliage suspended in the pen

Measurements

The goats were weighed every two weeks. Feed intake of the kapok foliage was recorded and samples retained for analysis. Dry matter was determined by micro-wave radiation (Undersander et al 1993). Nitrogen and ash were determined by methods of AOAC (1990). Water extractable DM and N were determined by the procedures described by Ly and Preston (1997, 2001). Samples of faeces were taken every month directly from the rectum of the goats, for determination of faecal egg counts (FEC), according to the method of Hansen and Perry (1994).

Statistical analyses

The data were subjected to analysis of variance (ANOVA) using the General Linear Model option (GLM) of the MINITAB software version 13.1 (Minitab 2000). Sources of variation were treatments, blocks and interaction treatments*blocks and error. Growth rate was calculated by regression of live weight (kg) on time (days). The data for faecal egg counts were transformed by the power of log10 prior to analysis.

Results and discussion

The crude protein and the DM decreased when the foliage included petioles and the petioles plus fine stems (Table 1).

Table 1.  Chemical composition of kapok tree foliage with and without petioles and stems

 

Leaves

Leaves + petiole

Leaves + petiole + stem

DM, % fresh basis

35.3

33.0

23.2

As % of DM

N

2.95

2.55

2.11

Crude protein

18.4

15.9

13.2

Ash

11.4

10.6

13.5

OM

88.6

89.4

86.5

Water-extractable, %

DM

34.1

29.1

26.4

N

37.7

35.0

11.6

The values for crude protein and the DM in the intact foliage (leaves plus petioles plus fine stems) were similar to those reported by Nguyen Thi Hong Nhan (1998) (14% and 21%, respectively). It was observed that in most cases the goats consumed all the leaves, petioles and stems in the immature foliage at the top of the branches, but only the leaves in the lower parts.

The first 4 months of the experiment coincided with the dry season when there was plenty of grazing available. Beginning in June these areas were progressively reduced due to the flooding. It was therefore decided to analyse the growth performance and FEC data according to two periods corresponding to the dry (February to May) and wet (June to September) seasons (Tables 2, 3 and 4; Figures 1, 2, 3 and 4).

Table 2.  Mean values for effects of Ivermectin and kapok supplementation on changes in live weight of the goats and in parasite egg counts in faeces in the dry season

 

Ivermectin

Supplement

SEM2

Prob.

Interaction of treatments

No

Yes

No

Yes

Ivom

Supp

G

GI

GS

GSI

SEM/P

Live weight, kg

Initial

11.5

11.6

11.7

11.4

0.19

0..57

0.29

11.7

11.3

11.5

11.2

0.27 / 0.25

Final

23.1

23.3

22.4

23.8

0.47

0.81

0.13

23.3ab

21.5b

22.9b

24.8a

0.67/0.03*

ADG, g

104

105

97.2

112

7.17

0.90

0.19

106

87.9

103

123

10.1/0.10

Nematode, EPG1

709a

105b

418

396

 

0.001

0.87

748

88.0

669

122

134 / 0.69

Coccidia, EPG1

389

562

429

521

 

0.31

0.58

413

446

364

677

157 / 0.41

1 Data transformed by log10 prior to analysis
2 SEM of main effects

 

Table 3.  Mean values for effects of Ivermectin and supplementation on changes in live weight of the goats and in parasite egg counts in faeces in the wet season.

 

Ivermectin

Supplement

SEM2

Prob.

Interaction of treatments

No

Yes

No

Yes

Ivom

Supp

G

GI

GS

GSI

SEM/P

Live weight, kg

Initial

23.1

23.1

22.4

23.8

0.0.47

0.81

0.13

23.3ab

21.5b

22.9b

24.8a

0.67/0.03*

Final

27.5

28.5

26.2b

29.9a

0.57

0.25

0.001

26.5

25.8

28.5

31.3

0.81 / 0.08

ADG, g

35.4

43.9

30.9b

48.4a

3.84

0.17

0.02

24.1

37.6

46.6

50.2

5.43 /0.39

Parasite egg, EPG1

784a

305b

605

484

 

0.001

0.20

838

373

732

236

84.0 / 0.86

Coccidia, EPG1

294

323

190

427

 

0.80

0.08

285

95

303

551

112 / 0.10

1 Data transformed by log10 prior to analysis
2
SEM of main effects

 

Table 4.  Mean values for effects of Ivermectin and supplementation on changes in live weight of the goats and in parasite egg counts in faeces in the whole period.

 

Ivermectin

Supplement

SEM2

Prob.

Interaction of treatments

No

Yes

No

Yes

Ivom

S˛upp

G

GI

GS

GSI

SEM/P

Live weight, kg

Initial

11.5

11.6

11.7

11.4

0.19

0.57

0.29

11.7

11.3

11.5

11.2

0.27 / 0.25

Final

27.5

28.5

26.2b

29.9a

0.57

0.25

0.001

26.2

25.6

28.5

31.2

0.81 / 0.08

ADG, g

71.2

76.4

65.3b

82.5a

4.40

0.43

0.03

65.2

65.0

77.2

87.9

6.21 / 0.42

Nematode, EPG1

753a

225b

528

451

 

0.001

0.49

803

253

705

198

103 / 0.93

Coccidia, EPG1

359

445

334

472

 

0.47

0.26

373

293

345

598

110 / 0.18

1 Data transformed by log10 prior to analysis
2 SEM of main effects

Growth rates were twice as high in the dry season than in the wet season. Growth rates were increased by supplementation in the wet season but not in the dry season and were not affected by Ivermectin treatment in either season. Nematode egg counts in faeces were in the low to medium category according to the rating proposed for sheep by Hansen and Perry (1994). They were less in goats treated with Ivermectin compared with untreated controls, but were not affected by supplementation. Coccidia infestation was not affected by Ivermectin nor supplementation.

Figure 1. Growth curves of the goats in the dry season
 
Figure 2. Growth curves of the goats in the wet season
 

Figure 3. The variation of EPG of Strongyles in the dry season Figure 4. The variation of EPG of Strongyles in the wet season

The growth rate throughout the dry season was consistently high. It began to decrease with the onset of the rainy season eventually ceasing in all treatments during the latter part of August and all of September (Figures 1 and 2). At this time most of the grazing area was under water effectively restricting the opportunity for selection.


Conclusions


Acknowledgments

The authors wish to express their gratitude to the MEKARN project, supported by SIDA/SAREC of Sweden, for financing this study.


References

AOAC 1990 Official methods of Analysis. Association of Official Analytical Chemist. 15th edition (K Helrick editor). Arlington pp1230

Chen C P, Halim R A and Chin F Y 1992 Fodder trees and fodder shrubs in range and farming systems of the Asian and Pacific region. In: Legume trees and other fodder trees as protein sources for Livestock (A Speedy and P L Pugliese editors). FAO Animal Production and Health Paper No. 102 p 11-22 http://www.fao.org/DOCREP/003/T0632E/T0632E02.htm

Getachew G, Makka H P S and Becker K 2002 Tropical Browse: content of phenolic compound, in vitro gas production, and stoichiometrical relationship between short chain fatty acid and invitro gas production. Journal of Agricultural Science p: 341-352

Hansen, J and Perry B 1994 The epidemiology diagnosis and control of helminth parasites of ruminants, International Laboratory for Research on Animal Diseases, Nairobi, Kenya. p: 79. http://www.fao.org/Wairdocs/ILRI/x5492E/x5492E00.htm

Kaitho R J 1997 Nutritive value of browses as protein supplement to poor quality roughages. PhD thesis. Wageningen Agricultural Univesity. Wageningen

Kochapakdee S, Choldumrongkul S, Saitahnoo S and Pralomkran W 2001 The effect of internal parasite on the grow of crossbreed goat under village environment in Southern of Thailand, PSU goat research publication, pp 285-290

Leng R A 1997 Tree foliage in ruminant nutrition. FAO Animal Production and Health Paper No 139. Rome pp 100 http://www.fao.org/docrep/003/w7448e/W7448E00.htm

Ly J and Preston T R 1997 An approach to the estimation of washing losses in leaves of tropical trees. Livestock Research for Rural Development 9(3):5-9 http://www.cipav.org.co/lrrd/lrrd9/3/ly931.htm

McSweeney C S, Palmer B, McNeil D M and Krause D O 2001 Microbial interactions with tannin: Nutritional consequences for ruminants. Animal Feed Science and Technology: 83-93.

Molan A L, Waghorn G C and McNabb W C 2002 Effect of condensed tannins on egg hatching and larval development of Trichostrongylus colubriformis in vitro. The Veterinary Record. 150 (3) pp. 65-69(5)

Nguyen Thi Hong Nhan 1997 Effect of sugar cane juice on milk production of goats fed a basal diet of jackfruit (Artocarpus heterophyllus) leaves. In Proceedings Regional Seminar-Workshop on Better use of locally available feed resources in sustainable livestock-based agricultural systems in SE Asia (Editors: T R Preston and Kenji Sato). FAO Project GCP/RAS/143/JPn; Ho Chi Minh City (pp: 62-65)

Norton B W 1994 Tree legumes as dietary supplements for ruminants. In: Forage tree legumes in tropical agriculture (R C Gutteridge and P M Shelton editors). CAB International. Wallingford p 202-215 http://www.fao.org/ag/agp/AGPC/doc/Publicat/Gutt-shel/x5556e0k.htm

Seng Sokerya and Rogriguez L 2001 Foliage from cassava, Flemingia macrophylla and bananas compared with grasses as forage sources for goats: effects on growth rate and intestinal nematodes. Livestock Research for Rural Development (13) 2:  http://www.cipav.org.co/lrrd/lrrd13/2/soke132.htm

Singh R V 1995 Fodder production from tropical forests in Asia and the Pacific Region. FAO Regional Office for Asia and the Pacific Publication 1995/16. Bangkok pp 65

Sorn San 2002 Survey of the Distribution, Management, Marketing and Constraints of Goat Production in Cambodia. Goat Project report for ILRI IFAD TAG 433

Theng Kouch, Nam Noch and Preston T R 2003 Observations on goat raising system of farmers along the Mekong river on production, reproduction and feed. MSc. thesis, Swedish University of Agricultural Sciences, Uppsala.

Undersander D, Mertens D R and Theix N 1993 Forage Analyse Procedure. National Forage Testing Association. Omaha. pp 154.

Waller P J 1999 International approaches to the concept of integrated control of nematode parasite of livestock. International Journal of Parasitology 29(1) pp 155-164


Received 2 March 2006; Accepted 20 April 2006; Published 22 June 2006

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