Rinderpest vaccination responses among calves and adult cattle in Uganda monitored using ELISA assay

Opuda-Asibo, J.; Siefert, L.; Omamure-Epaye, L.; Ekopai, T.; Kyeyamwa, H.

doi:10.1016/0147-9571(93)90156-y

Cited by 2 publications

(2 citation statements)

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“…Newcastle disease and rinderpest (Kabasa et al, 1993;Opuda-Asibo et al, 1993). Newcastle disease and rinderpest (Kabasa et al, 1993;Opuda-Asibo et al, 1993).…”

Section: Discussionmentioning

confidence: 99%

“…In Uganda, protein-energy malnutrition has been implicated in the fluctuating production of poultry meat and eggs, and in the failure of prophylactic vaccinations against ND (MAIF, 1988;Kabasa et al, 1993) and rinderpest (Opuda-Asibo et al, 1993). Energy deficiencies occur when broilers are fed diets with high levels of indigestible fibre that surpass the capacity of the digestive system to hold sufficient feed to obtain an adequate daily amount of energy (Smith, 1990).…”

Section: Introductionmentioning

confidence: 99%

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Serum immunoglobulin responses among broiler chickens fed ugandan commercial poultry feeds and vaccinated against newcastle disease

Opuda-Asibo

Kabasa

1996

Trop Anim Health Prod

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Responses to the La Sota strain Newcastle disease (ND) vaccine virus were monitored in 240 Ross breed broilers fed 4 Ugandan commercial feeds, Fs, F1, F2 and F3. The production of IgM, IgG and haemagglutination-inhibition (HI) antibodies, were monitored from day 28 of age for 4 weeks using the ELISA assay and HI-test. All broilers were sero-negative before vaccination. The Fs, F1, F2 and F3 feeds had metabolisable energy~crude protein ratios of 599, 870, 823 and 685 respectively, and had significant (P < 0.05) differences in the development of IgM, IgG and HI titres. Commercial feed F1 reduced IgM (31.9%); IgG (30"9%) and HI (54"5%) titres. Commercial feed F2 reduced IgG (30"2%) and HI (36"4%) titres but did not affect lgM. Commercial feed F3 reduced lgG (16. 3%) but affected neither IgM nor HI titres. Peak HI titres ofF1 (22"s) and F2 (2 J's) were below the HI titre (2 a'2) that prevents 100% mortality due to virulent ND virus infection. Per cent loss of lgM titres in broilers that had sero-converted was 100% (El), 25% (F2), 25% (F3) and 20% (Fs) by week 4.Per cent loss of lgG titre was 12.5% (F1), 16.7% (F2), 7"2% (F3) and 4% (Fs) by week 5. However, none of the feeds affected the time of attaining maximum sero-conversion at week 2 (IgM), week 3 (HI titres) and week 4 (IgG) in the flocks. The lack of standardisation of poultry feed quality in Uganda may be a shortcoming in successful protection of poultry by vaccination against ND.

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“…Newcastle disease and rinderpest (Kabasa et al, 1993;Opuda-Asibo et al, 1993). Newcastle disease and rinderpest (Kabasa et al, 1993;Opuda-Asibo et al, 1993).…”

Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Serum immunoglobulin responses among broiler chickens fed ugandan commercial poultry feeds and vaccinated against newcastle disease

Opuda-Asibo

Kabasa

1996

Trop Anim Health Prod

Self Cite

View full text Add to dashboard Cite

show abstract

Serum immunoglobulin responses among broiler chickens fed Ugandan commercial poultry feeds and vaccinated against Newcastle disease

Opuda-Asibo

Kabasa

1996

Trop Anim Health Prod

View full text Add to dashboard Cite

Responses to the La Sota strain Newcastle disease (ND) vaccine virus were monitored in 240 Ross breed broilers fed 4 Ugandan commercial feeds, Fs, F1, F2 and F3. The production of IgM, IgG and haemagglutination-inhibition (HI) antibodies, were monitored from day 28 of age for 4 weeks using the ELISA assay and HI-test. All broilers were sero-negative before vaccination. The Fs, F1, F2 and F3 feeds had metabolisable energy/crude protein ratios of 599, 870, 823 and 685 respectively, and had significant (P < 0.05) differences in the development of IgM, IgG and HI titres. Commercial feed FI reduced IgM (31.9%); IgG (30.9%) and HI (54.5%) titres. Commercial feed F2 reduced IgG (30.2%) and HI (36.4%) titres but did not affect IgM. Commercial feed F3 reduced IgG (16.3%) but affected neither IgM nor HI titres. Peak HI titres of F1 (2(2.5)) and F2 (2(3.5)) were below the HI titre (2(5.2)) that prevents 100% mortality due to virulent ND virus infection. Per cent loss of IgM titres in broilers that had sero-converted was 100% (F1), 25% (F2), 25% (F3) and 20% (Fs) by week 4. Per cent loss of IgG titre was 12.5% (F1), 16.7% (F2), 7.2% (F3) and 4% (Fs) by week 5. However, none of the feeds affected the time of attaining maximum sero-conversion at week 2 (IgM), week 3 (HI titres) and week 4 (IgG) in the flocks. The lack of standardisation of poultry feed quality in Uganda may be a shortcoming in successful protection of poultry by vaccination against ND.

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Rinderpest vaccination responses among calves and adult cattle in Uganda monitored using ELISA assay

Cited by 2 publications

References 4 publications

Serum immunoglobulin responses among broiler chickens fed ugandan commercial poultry feeds and vaccinated against newcastle disease

Serum immunoglobulin responses among broiler chickens fed ugandan commercial poultry feeds and vaccinated against newcastle disease

Serum immunoglobulin responses among broiler chickens fed Ugandan commercial poultry feeds and vaccinated against Newcastle disease

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