Agricultural Research Management Information System

Home
Research Summary
Search
About Us
- ARMIS
- Brochure
Contact Us
Report
User Request
Data Input
Help
- Operation Manual
  - PDF
  - Video
- Program Area & Commodity
We have reached 37600 number of research entries at this moment.

- Logout

Research Detail

Home
Research
Detail

Effects of Concentrate Supplementation on Growth, Reproduction and Milk Yield of Black Bengal Goats (capra Hircus

S. Sultana
Department of Animal Nutrition, Bangladesh Agricultural University, Mymensingh-2202, Bangladesh

M. J. Khan
Department of Animal Nutrition, Bangladesh Agricultural University, Mymensingh-2202, Bangladesh

M. R. Hassan
Bangladesh Livestock Research Institute, Savar, Dhaka, Bangladesh

M. A. M. Y. Khondoker
Department of Animal Breeding and Genetics, Faculty of Animal Husbandry, Bangladesh Agricultural University, Mymensingh-2202, Bangladesh

Abstract/ Executive Summary:

Sixteen female Black Bengal goats (10 ± 0.6 months of age and 11.5 ± 1.3 kg live weight) were divided into four groups having four goats in each. In a completely randomized design, A, B, C and D were given 150, 200, 250 and 300g concentrate mixture with ad libitum green grasses. Total dry matter (DM) intake (333.6, 374.7, 416.3 and 456.5g/day in groups A, B, C and D, respectively) was significantly (P<0.01) influenced by the level of concentrate in the diet. Crude protein (CP) intake (45.2, 57.0, 66.4 and 75.7g/day) was significantly (P<0.01) higher in group D and lower in group A. Daily weight gain of kids did not differ significantly between groups. Feed and protein conversion efficiency was not significantly influenced by the concentrate level in the diet. Milk yield was significantly (P<0.01) increased (206.8, 233.4, 359.3 and 374.7 mL/day for groups A, B, C and D, respectively) with the supplementation of concentrate. It is suggested to supplement 250g of concentrate daily to female goats in addition to ad libitum roughage.

Keywords: Growth, Reproduction,Milk yield, Black Bengal goats

Location: BAU, Mymensingh

Start Date:

End Date:

Program Area: Animal Health and Management

Commodity: Goat

Objectives:

The present study was undertaken to evaluate common grasses available for feeding and the effect of concentrate supplementation on voluntary feed intake, and productive and reproductive performance.

Methodology:

Sixteen female goats of live weight 11.5 ± 1.3 kg at 10 ± 0.56 months of age were used for a 240-day feeding trial. Goats were assigned to four dietary treatments in a completely randomized design with four goats in each treatment. All animals received ad libitum green grass as the basal diet. They received concentrate mixture 150, 200, 250 and 300g/day per goat for group A, B, C and D, respectively: 100 kg of concentrate mixture contained 30 kg crushed maize, 50 kg wheat bran, 19 kg mustard oil cake, 0.1 kg vitamin mineral premix and 1 kg salt. Concentrate mixture contained 15.7g crude protein (CP) and 13.2 megajoule (MJ) of metabolisable energy (ME)/kg dry matter (DM). All goats were housed in a tin shed having wooden slatted floor raised above the ground with sufficient space to keep them comfortable. Goats were allowed free movement in a paddock daily from 8 to 10 AM. Before grazing, all the animals were supplied with 50% of the concentrate mixture and the remaining 50% was supplied at 4 PM. After grazing, the animals were supplied chopped green grass ad libitum. The feed was offered individually in plastic pans and fresh drinking water was available at all times. Kids were kept with their mother for the whole study period and no additional feed was provided to the kids. Feed samples were mixed and sub-samples were dried in the sun. After drying, grasses were ground. Crushed maize, mustard oil cake and wheat bran were purchased from the local market, and representative samples were collected at the time of their procurement for proximate analysis following the methods of AOAC (1980). The weight of goats was recorded every 30 days in the morning. The birth weight (kg) of kids was taken by digital weighing balance within one hour after birth and fortnightly. Kids were separated from their does overnight (8 PM - 6 AM). In the morning, kids were weighed by weighing balance and allowed to suck. After sucking, kids were weighed again and milk production was calculated. Data on reproductive performance including number of services per pregnancy, gestation length, litter size, birth weight of kids, postpartum doe weight and placenta weight were recorded. Data were compiled, tabulated and analysed using Statistical Package for Social Sciences (SPSS 11.5). Least significant difference (LSD) test were performed for comparison with SPSS (version 11.5).

Source of Information: Bangl. vet. 2012. Vol. 29, No. 1, 7 – 16

Article Link (Online Journal):

Funding Source:

Total Budget (Tk.) :

Achievement/Findings:

Concentrate supplementation increased feed intake of does, live weight gain of kids in the first month and milk yield of does, but the positive effect was not correlated with the level of supplementation. Daily supplementation of 250g concentrate to suckling goats in addition to ad libitum roughage feeding could be recommended.

Knowledge Management: Journal