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Effect of Feeding Sesbania Leaves on Growth and Nutrient Utilization in Goats

M. Shahjalal
Dept. of Animal Nutrition, Bangladesh Agricultural University, Mymensingh-2202, Bangaladesh.

Abstract/ Executive Summary:

An experiment was conducted for 56 days using 9 castrated male Black Bengal goats (initial LW 9.0 kg) aged about 5 months to study the effects of feeding Sesbania leaves as sole feed on growth performance and nutrient utilization. The animals were fed ad libitum on road-side grass (A) and green leaves of Sesbania aculeata (B) or Sesbania rostrata (C). Average dry matter (DM) intake was 179, 229 and 259 g/d for goats fed treatments A, B and C, respectively. Corresponding mean values were for average daily live weight change-6.6, 9.5, 38.1 g. estimated microbial N yield 1.99, 2.76 and 3.37 g/d, respectively. All these parameters were significantly (P<0.05) higher for goats fed Sesbania leaves than those given road-side grass. The apparent digestibility of all the proximate components except CF and DCP, TDN, 'D' value (DOM) and ME concentrations of Sesbania leaves were significantly (P<0.05) higher than those of road-side-grass. Sesbania rostrata was significantly (P<0.05) superior to Sesbania aculeata for nutrient digestibilities (except for NFE) and also for 'D' value, DCP and ME concentrations. Therefore, it may be concluded that Sesbania rostrata, a legume fodder, production should be encouraged for feeding goats.

Keywords: Goat, Sesbania Leaves, Nutrient Utilization

Location: Dept. of Animal Nutrition, Bangladesh Agricultural University, Mymensingh.

Start Date:

End Date:

Program Area: Animal Health and Management

Commodity: Goat

Objectives:

To the effects of feeding Sesbania leaves as sole feed on nutrient utilization and growth performance in Black Bengal goats were measured.

Methodology:

Nine Black Bengal male castrated goats aged about 5 months and weighed 9.0 kg on average were used in a 56 day feeding trial. The goats were housed individually in pens with a slatted floor and were introduced to the experimental feeds over a period of two weeks. The animals were allocated at random to one of three dietary treatments in a randomised block design according to live weight. The control group A was given naturally grown road-side grasses and groups Band C were offered green leaves of Sesbania aculeata and Sesbania rostrata, respectively. The green Sesbania leaves along with twigs (70 days after sowing) and road- side grasses were collected every morning and the animals were fed to appetite. In order to ensure ad libitum feeding, the feed was offered twice a day. Fresh water was available at all times. live weight at the end of each week and feed intake every day were recorded prior to morning feeding.

At the end of 56 day growth study, a 6 day digestibility trial was conducted. Feed, refusal and faeces samples were analysed for proximate constituents using the recommended methods of AOAC (1980). The digestible organic matter (DOM or 'D' value) was calculated from organic matter digestibility (OMD) and organic matter content (OM, g/kg DM) of feeds using the equation, '0' value=OM x OMD and ME concentration was estimated from digestible orqanic matter (DOM, g/ kg DM) as ME (MJ/kg DM)= 0.016 DOMD (MAFF, 1984). Microbial-N yield was estimated from digestible organic matter (DOM) fermented in the rumen as DOMR= 0.65 DOMI and 32 g N per kg DOMR (ARC, 1984).

Source of Information: Bang. J. An. Sc.1997, 26(1-2) : 117-123 (ISSN 0003-3588)

Article Link (Online Journal):

Funding Source:

Total Budget (Tk.) :

Achievement/Findings:

It may be concluded that Sesbania leaves given to goats resulted in higher live weight gain, microbial-N yield, nutrient digestibility and nutritive value than that obtained for road-side grasses. Sesbania rostrata was superior to Sesbania aculeata in nutrient digestibility, 'D' value, DCP and ME concentrations. The results indicated that Sesbania rostrata, a high quality fodder, can be used as a good source of nutrients, particularly of protein, for growing goats.

Knowledge Management: Journal