Journal of Fisheries, Livestock and Veterinary Science
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Volume 04 - Issue 01 | Year of Publication: 2025
Article Type: Research Article | No. 16, 2025 | Country: Sierra Leone | pp. 148-156 | Open Access
Title: Phenotypic characterization and antibiotic resistance and susceptibility in indigenous and other breeds of chickens in Sierra Leone
Authors: Kabba Kargbo, Dauda Sheku Yillah, Akiwande Boyle-Renner, Julius Ishmael Nyakeh Sombie, Samba Prince Turay and Samuella Kargbo
DOI: https://doi.org/10.18801/jflvs.040125.16
Title: Phenotypic characterization and antibiotic resistance and susceptibility in indigenous and other breeds of chickens in Sierra Leone
Authors: Kabba Kargbo, Dauda Sheku Yillah, Akiwande Boyle-Renner, Julius Ishmael Nyakeh Sombie, Samba Prince Turay and Samuella Kargbo
DOI: https://doi.org/10.18801/jflvs.040125.16
Phenotypic characterization and antibiotic resistance and susceptibility in indigenous and other breeds of chickens in Sierra Leone
Abstract
This study phenotypically characterized collected indigenous breeds of chickens in regional Sierra Leone and analyzed the antibiotic resistance patterns of E. coli isolates in fecal swabs of both indigenous and other exotic breeds of chicken. It also provides the basis for selection of locally adapted birds for genetic improvement programmers. One hundred and fifty (150) locally adapted chickens were characterized and 28 samples of both indigenous and improved breeds of chickens were swabbed. Five distinct ecotype breeds were identified with no significant differences (P>0.05) among them in terms of morphological appearance. For qualitative traits, orange and yellow eye colors were the most common types found: brown and yellow beak colors are the predominant types in the Normal and Frizzle, with single comb type commonly observed in all breeds, and the Kebu breed showed 100% grey shanks. The body parameters also did not depict any significant differences (P>0.05). However, the Kebu showed better character in terms of: body weight, body length, shank, and neck length. The beak length, comb height and length and wattle height are close (0.95-1.75) for all breeds except for straw-feathered breeds with much lesser values (0.35-1.220). Out of the twelve antibiotics, tested on E. coli isolates from all breeds, resistance was shown against only three; Sulphathiazole (96.2%), Ampicillin (34.6%), and Chloramphenicol (3.8%). E. coli isolates from the Kebu breed exhibited resistance to all the antibiotics used, while, E. coli isolates from all the other breeds sampled showed resistance to Sulphathiazole but none to Chloramphenicol. All isolates were 100% susceptible to cefepime, and 94.2% susceptible to cephalosporin. No Multi Drug Resistance (MDR) was seen among the E. coli isolates. In future, the evaluation of the production potential of local breeds of chicken in terms of clutch size and meat production would be of vital importance.
Keywords: Chicken breeds, Characterization, Antibiotics, Susceptibility, Resistance
Abstract
This study phenotypically characterized collected indigenous breeds of chickens in regional Sierra Leone and analyzed the antibiotic resistance patterns of E. coli isolates in fecal swabs of both indigenous and other exotic breeds of chicken. It also provides the basis for selection of locally adapted birds for genetic improvement programmers. One hundred and fifty (150) locally adapted chickens were characterized and 28 samples of both indigenous and improved breeds of chickens were swabbed. Five distinct ecotype breeds were identified with no significant differences (P>0.05) among them in terms of morphological appearance. For qualitative traits, orange and yellow eye colors were the most common types found: brown and yellow beak colors are the predominant types in the Normal and Frizzle, with single comb type commonly observed in all breeds, and the Kebu breed showed 100% grey shanks. The body parameters also did not depict any significant differences (P>0.05). However, the Kebu showed better character in terms of: body weight, body length, shank, and neck length. The beak length, comb height and length and wattle height are close (0.95-1.75) for all breeds except for straw-feathered breeds with much lesser values (0.35-1.220). Out of the twelve antibiotics, tested on E. coli isolates from all breeds, resistance was shown against only three; Sulphathiazole (96.2%), Ampicillin (34.6%), and Chloramphenicol (3.8%). E. coli isolates from the Kebu breed exhibited resistance to all the antibiotics used, while, E. coli isolates from all the other breeds sampled showed resistance to Sulphathiazole but none to Chloramphenicol. All isolates were 100% susceptible to cefepime, and 94.2% susceptible to cephalosporin. No Multi Drug Resistance (MDR) was seen among the E. coli isolates. In future, the evaluation of the production potential of local breeds of chicken in terms of clutch size and meat production would be of vital importance.
Keywords: Chicken breeds, Characterization, Antibiotics, Susceptibility, Resistance
Article Type: Research Article | No. 17, 2025 | Country: Bangladesh | pp. 157-168 | Open Access
Title: Length frequency, length-length and length-weight relationships including the condition factors of striped catfish (M. vittatus) in wetland ecosystem of Southern Bangladesh
Authors: Maruf Hasan, Tasfia khatun Beauty, Ferdous Ahamed, Mushfiq Rifat, Md Saamim Reja
DOI: https://doi.org/10.18801/jflvs.040125.17
Title: Length frequency, length-length and length-weight relationships including the condition factors of striped catfish (M. vittatus) in wetland ecosystem of Southern Bangladesh
Authors: Maruf Hasan, Tasfia khatun Beauty, Ferdous Ahamed, Mushfiq Rifat, Md Saamim Reja
DOI: https://doi.org/10.18801/jflvs.040125.17
Length frequency, length-length and length-weight relationships including the condition factors of striped catfish (M. vittatus) in wetland ecosystem of Southern Bangladesh
Abstract
Freshwater catfishes are primarily valued for their roles as sources of food and sport, which contributes significantly to their economic importance. The Asian striped catfish (Mystus vittatus, locally called “Tengra”) a small indigenous freshwater species, widely distributed South Asian sub-continent. This study describes length frequency distribution (LFD), relationship between length and length, length-weight and the condition factor in the Atharogachia beel, Patuakhali, Southern Bangladesh. The study was conducted to gather information that could help conserve the natural populations of the species. Local fishers, using various traditional fishing gears like cast net, seine net, and lift net were involved in the study. To get measurements, used a measuring scale to determine the total length (TL), standard length (SL) and forked length (FL) in centimeters and weighed the fish body weight using an electronic digital balance with an accuracy of 0.1. The LFD was estimated by 1 cm TL class interval. The study revealed that maximum individuals (65%) were distributed in the length class of 6.00 cm and 6.90 cm TL, whereas 66% of SL and FL in 5.2 cm and 5.93 cm. The LLR between SL & TL and FL vs SL indicated positive allometric growth significantly higher (b > 3) values was 1.1707, while TL vs FL indicated negative allometric growth significantly lower (b < 3) values was 0.8285. The LWRs between SL vs. BW indicated negative allometric growth significantly (P<0.05) lower was 2.9113, while TL vs. BW and FL vs. BW indicated positive allometric growth significantly higher (p<0.05) values were 3.146 & 3.008. The “KF” value on mixed sexes was recorded from 1.08 to 3.00 (mean = 1.95). The mean KF value (1.95) suggests a healthy population within the river ecosystem. We provided a baseline, including relative length, weight, size and condition factor can help guide sustainable management policies and support stock assessment efforts in surrounding ecosystems in Bangladesh.
Keywords: Striped catfish, Growth, Mystus vittatus, Life history traits, Atharogachia beel
Abstract
Freshwater catfishes are primarily valued for their roles as sources of food and sport, which contributes significantly to their economic importance. The Asian striped catfish (Mystus vittatus, locally called “Tengra”) a small indigenous freshwater species, widely distributed South Asian sub-continent. This study describes length frequency distribution (LFD), relationship between length and length, length-weight and the condition factor in the Atharogachia beel, Patuakhali, Southern Bangladesh. The study was conducted to gather information that could help conserve the natural populations of the species. Local fishers, using various traditional fishing gears like cast net, seine net, and lift net were involved in the study. To get measurements, used a measuring scale to determine the total length (TL), standard length (SL) and forked length (FL) in centimeters and weighed the fish body weight using an electronic digital balance with an accuracy of 0.1. The LFD was estimated by 1 cm TL class interval. The study revealed that maximum individuals (65%) were distributed in the length class of 6.00 cm and 6.90 cm TL, whereas 66% of SL and FL in 5.2 cm and 5.93 cm. The LLR between SL & TL and FL vs SL indicated positive allometric growth significantly higher (b > 3) values was 1.1707, while TL vs FL indicated negative allometric growth significantly lower (b < 3) values was 0.8285. The LWRs between SL vs. BW indicated negative allometric growth significantly (P<0.05) lower was 2.9113, while TL vs. BW and FL vs. BW indicated positive allometric growth significantly higher (p<0.05) values were 3.146 & 3.008. The “KF” value on mixed sexes was recorded from 1.08 to 3.00 (mean = 1.95). The mean KF value (1.95) suggests a healthy population within the river ecosystem. We provided a baseline, including relative length, weight, size and condition factor can help guide sustainable management policies and support stock assessment efforts in surrounding ecosystems in Bangladesh.
Keywords: Striped catfish, Growth, Mystus vittatus, Life history traits, Atharogachia beel
Volume 04 - Issue 02 | Year of Publication: 2025