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Research Week- UOM

G. Saraye, B. Nemorin, V. Rawoah,

J. Ramtohul and P.Toolsee

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October 2022

Substitution of concentrate by Calliandra calothyrsus in the diet of goats

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Contents

Introduction

Methodology

Results

Conclusion

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Introduction

  • Feeding of cattle and goats in Mauritius consists mainly assorted fodder from riversides, marginal lands and sugar cane tops
  • Needs supplementation

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Introduction

  • Production of livestock products are heavily dependent on imported feeds/ingredients in Mauritius
  • Adverse impact on disruption in trade due to COVID 19 and war
  • Extreme volatility in cost of feed

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Introduction

Calliandra:

  • Leguminous shrub that originates from Central America and Mexico
  • CP content -200 - 300 g kg-1DM
  • Yields 12.4 - 26.2 t DM/ha/year
  • Tolerant to acidic soils
  • Introduced in Mauritius in the 90’s.

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Objective

  • To investigate the substitution of concentrate by calliandra on growth rate of growing goats

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Methodology

2 Feeding Trials:

1st Experiment-G1

2nd Experiment-G2

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Feeding Trial�

12 Local Boer cross goats

G1- 6 goats average weight 15.2±1 kg randomly separated in 2 groups

G2 -6 goats average weight 23.7±4 kg

randomly separated in 2 groups

Calliandra- treatments

Control -concentrate

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Completely Randomized Design

Each animal representing a unit of observation

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Feeding in both experiments �

Animals in treatment groups --- fed on chipped sugar cane tops (3kg)+ calliandra (1kg)

Animals in control groups --- fed on chipped sugar cane tops(3kg) + concentrate (CP17%) ,500g

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Results and discussions

Chemical composition of the feed (%DM)

 

DM

CP

CF

EE

ASH

P2O5

Ca

ADF

ADL

NDF

Sugar cane tops

31.36

6.21

28.81

1.08

6.61

0.44

0.24

42.8

11.34

71.6

Concentrate

88.74

18.98

3.78

3.32

9.07

1.51

1.38

7.00

2.83

27.87

Calliandra

36.44

20.14

16.14

1.42

5.75

0.60

1.26

37.69

17.13

47.10

Diets

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Sugar cane tops +Conc (6:4)

54.31

11.32

18.80

1.98

7.59

0.87

0.70

28.48

7.94

54.11

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Trash+ Calliandra (6:4)

33.39

11.78

23.74

1.22

6.27

0.50

0.65

40.76

13.66

61.80

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Results and discussion

  • Trials lasted for 44 days

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Weight of animals G1

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Weight at start of experiment, kg

Weight at end of experiment, kg

Treatment

15.2±2

17.7±1

Control

14.8±0.3

16.7±0.6

There was no significant difference(P>0.05) between treatments in liveweights end of experiment.

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Growth performance�

Live weight of goats over time

The (ADG) for Control was 41.7±6g/day compared to the treatment 56.8±19g/day.

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Weight of animals G2

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Weight at start of experiment, kg

Weight at end of experiment, kg

Treatment

21.3±2

24±3

Control

26±3

29±3

There was no significant difference(P>0.05) between treatments in liveweights end of experiment.

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Growth performance

Live weight of goats over time

The ADG was 68g/day for both the control and the treatment group.

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Conclusion

Calliandra can substitute concentrate feed in the diet of goats with no effect on growth performance

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Outcome

The utilization of locally available and home-grown high protein forages and browses is therefore being encouraged

Litesea monopetala

Albizia lebbeck

Leucaena

leucocephala

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Acknowledgment�

The authors gratefully acknowledge the support from the management of FAREI