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Tropical Animal Health and Production

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https://www.readbyqxmd.com/read/28337572/genetic-appraisal-of-serological-response-post-vaccination-against-enterotoxaemia-et-in-malpura-and-avikalin-sheep
#1
G R Gowane, Najif Akram, L L L Prince, Ved Prakash, Arun Kumar
Enterotoxaemia (ET) is a fatal enteric disease of small ruminants attributable to a toxigenic type of Clostridium perfringens. The key strategy for prevention of ET is the management and vaccination. Present study aimed at identifying the sources of variation for ET vaccine response especially against epsilon toxin in 173 sheep that included 83 Avikalin and 90 Malpura lambs raised at the institute flock in the semi-arid region of India. The mean age at vaccination was 90 days. Sera were tested by blocking ELISA...
March 23, 2017: Tropical Animal Health and Production
https://www.readbyqxmd.com/read/28337571/effects-of-feeding-ground-pods-of-enterolobium-cyclocarpum-jacq-griseb-on-dry-matter-intake-rumen-fermentation-and-enteric-methane-production-by-pelibuey-sheep-fed-tropical-grass
#2
S Albores-Moreno, J A Alayón-Gamboa, A J Ayala-Burgos, F J Solorio-Sánchez, C F Aguilar-Pérez, L Olivera-Castillo, J C Ku-Vera
An experiment was carried out to determine the effect of supplementing ground pods of Enterolobium cyclocarpum in a basal ration of Pennisetum purpureum grass on feed intake, rumen volatile fatty acids (VFAs), and protozoa and methane (CH4) production by hair sheep. Four male sheep (Pelibuey × Katahdin) with a mean live weight of 27.0 kg (SD ± 0.5) were supplemented with 0.00, 0.15, 0.30, and 0.45 kg of dry matter (DM) of E. cyclocarpum pods daily; equivalent to 0.00, 4.35, 8.70, and 13.05 g of crude saponins, respectively...
March 23, 2017: Tropical Animal Health and Production
https://www.readbyqxmd.com/read/28332071/the-nutritive-value-of-marula-sclerocarya-birrea-seed-cake-for-broiler-chickens-nutritional-composition-performance-carcass-characteristics-and-oxidative-and-mycotoxin-status
#3
Doctor Mziwenkosi Nhlanhla Mthiyane, Bhekumusa Sabelo Mhlanga
This study was aimed at investigating the nutritive value of marula seed cake (MSC) as an alternative protein source for broilers. In a completely randomised design involving six replicate pens of five chickens assigned to each of five treatments, body weight gain (BWG), feed intake (FI), feed conversion efficiency (FCE) and carcass characteristics were measured in an experiment in which 150 28-day-old broilers were fed maize-based diets containing, respectively, 0, 5, 10, 15 and 20% MSC at finisher phase. The results showed MSC to be remarkably high in CP (470...
March 22, 2017: Tropical Animal Health and Production
https://www.readbyqxmd.com/read/28332070/a-review-on-prevalence-control-measure-and-tolerance-of-tanzania-shorthorn-zebu-cattle-to-east-coast-fever-in-tanzania
#4
E L K Laisser, S W Chenyambuga, E D Karimuribo, G Msalya, M J Kipanyula, A J Mwilawa, R H Mdegela, L J M Kusiluka
In Tanzania, control of East Coast fever (ECF) has predominantly relied on tick control using acaricides and chemotherapy, little on ECF vaccination, and very little on dissemination regarding animal immunization. In this paper, the prevalence, control measure, and tolerance of Tanzania Shorthorn Zebu (TSHZ) cattle to ECF are reviewed. In addition, the opportunities available for reducing the use of acaricides for the benefit of the farmers in terms of reduction of costs of purchasing acaricides and environmental pollution are described...
March 22, 2017: Tropical Animal Health and Production
https://www.readbyqxmd.com/read/28332069/dairy-cows-change-locomotion-score-and-sensitivity-to-pain-with-trimming-and-infectious-or-non-infectious-lesions
#5
L T Passos, E A da Cruz, V Fischer, G C da Porciuncula, D Werncke, A G C Dalto, M T Stumpf, E F Vizzotto, I D B da Silveira
Lameness can negatively affect production, but there is still controversy about the perception of pain in dairy cows. This study aimed to verify the effects of hoof affections in dairy cows on locomotion score, physiological attributes, pressure nociceptive threshold, and thermographic variables, as well as assess improvement on these variables after corrective trimming and treatment. Thirty-four lame lactating cows were gait-scored, and all cows with locomotion score ≥4 were retained for this study 1 day before trimming...
March 22, 2017: Tropical Animal Health and Production
https://www.readbyqxmd.com/read/28326486/genetic-characterization-of-porcine-circovirus-type-2-in-captive-wild-boars-in-southern-brazil
#6
José Paulo Hiroji Sato, Danielle Gava, Rejane Schaefer, Maurício Egídio Cantão, Janice Reis Ciacci-Zanella, David Emilio Santos Neves de Barcellos
Porcine circovirus type 2 (PCV2) has been identified in pig population in Brazil since 2000, but scarce studies involving wild boars with PCV2 infection are reported in the country. This study aimed to perform the genetic characterization of PCV2 detected in clinically healthy captive wild boars from farms located in Southern Brazil. Bronchial and mesenteric lymph nodes from 129 clinically healthy captive wild boars were tested by nested PCR for PCV2 detection. Six out of 38 positive samples (29.5%) were submitted to a quantitative real time PCR (qPCR) and genetic sequencing...
March 22, 2017: Tropical Animal Health and Production
https://www.readbyqxmd.com/read/28326485/preliminary-assessment-on-potentials-of-probiotic-b-subtilis-rx7-and-b-methylotrophicus-c14-strains-as-an-immune-modulator-in-salmonella-challenged-weaned-pigs
#7
Santi Devi Upadhaya, Suresh Kumar Shanmugam, Dae Kyung Kang, In Ho Kim
A total of 40 crossbred weaned piglets (28 days old; [Landrace × Yorkshire] × Duroc) were used for preliminary assessment on potentials of Bacillus-based probiotics as an immune modulator in a Salmonella Typhimurium challenge model in a 3-week experiment. Pigs were randomly allotted to four experimental diets according to their initial body weight (9.21 ± 1.1 kg) and sex (10 pigs per treatment; 5 barrows and 5 gilts). The dietary treatments were basal diet (CON), basal diet + oral administration of Salmonella enterica ser...
March 21, 2017: Tropical Animal Health and Production
https://www.readbyqxmd.com/read/28321791/arcobacter-spp-in-fecal-samples-from-brazilian-farmed-caimans-caiman-yacare-daudin-1802
#8
Maria Gabriela Xavier Oliveira, Leandro Nogueira Pressinotti, Giovane Spínola Carvalho, Mirela Caroline Vilela Oliveira, Luisa Zanolli Moreno, Carlos Emilio Cabrera Matajira, Alessandro Spínola Bergamo, Victor Manuel Aleixo, Alexandre Caixeta Veiga, Elvis de Souza Corsino, Ana Paula Guarnieri Christ, Maria Inês Zanolli Sato, Andrea Micke Moreno, Terezinha Knöbl
The aim of this study was to perform the identification and molecular characterization of Arcobacter cryaerophilus and Arcobacter butzleri isolated from caiman (Caiman yacare), kept at a production farm, in Brazil. Forty fecal samples were analyzed. After isolation and identification, 21/40 strains of A. butzleri and 19/40 strains of A. cryaerophilus were subjected to PCR for potential virulence gene detection. The results of the PCR showed 38/40 strains positive for the cadF, cj1349, ciaB, and tlyA genes, 39/40 strains positive for the pldA gene, and 40/40 strains positive for the mviN gene...
March 21, 2017: Tropical Animal Health and Production
https://www.readbyqxmd.com/read/28321790/peste-des-petits-ruminants-infection-in-domestic-ruminants-in-sudan
#9
K S Intisar, Y H Ali, M A Haj, M A T Sahar, M M Shaza, A M Baraa, O M Ishag, Y M Nouri, K M Taha, E M Nada, A M Ahmed, A I Khalafalla, G Libeau, A Diallo
The existence of peste des petits ruminants (PPR) in domestic ruminants and camels in Sudan during 2008-2012 was investigated. Lung tissues and serum samples were randomly collected from sheep, goats, cattle, and camels at different areas of Sudan. A total of 12,384 serum samples were collected from clinically healthy 7413 sheep, 1988 camels, 1501 cattle, 1459 goats, and 23 gazelles at different areas in the Sudan. They were examined for PPR antibodies using competitive ELISA (cELISA). The overall detected seroprevalence of PPR in tested sera was 49...
March 20, 2017: Tropical Animal Health and Production
https://www.readbyqxmd.com/read/28321789/longitudinal-study-of-bovine-rotavirus-group-a-in-newborn-calves-from-vaccinated-and-unvaccinated-dairy-herds
#10
Thaís Gomes Rocha, Fernanda Dornelas Florentino Silva, Fábio Gregori, Amauri Alcindo Alfieri, Maria da Glória Buzinaro, José Jurandir Fagliari
Reports of rotavirus excretion in calves usually result from cross-sectional studies, and in face of the conflicting results regarding protection of calves born to vaccinated dams against diarrhea, the aim of the present study was to evaluate rotavirus excretion in dairy calves born to vaccinated or unvaccinated dams, to identify the genotypes of bovine rotavirus group A (RVA) strains isolated from these animals as well as to investigate characteristics of the disease in naturally occurring circumstances throughout the first month of life...
March 20, 2017: Tropical Animal Health and Production
https://www.readbyqxmd.com/read/28321788/characteristics-of-aerococcus-viridans-isolated-from-bovine-subclinical-mastitis-and-its-effect-on-milk-scc-yield-and-composition
#11
Meng Sun, Jian Gao, Tariq Ali, Dan Yu, Shiyao Zhang, Saeed U Khan, Séamus Fanning, Bo Han
Aerococcus viridians (A. viridans), an environmental Gram-positive bacterium, has been documented to be associated with bovine mastitis. However, its exact role in bovine mastitis and the changes it brings about in milk characteristics are not yet known. The objectives of the current study were to describe the antibiotic resistance of A. viridans from bovine mastitis as well as the correlation between existence of this pathogen in udders and the somatic cell counts (SCC), daily milk yield, and composition of individual cow...
March 20, 2017: Tropical Animal Health and Production
https://www.readbyqxmd.com/read/28316000/investigating-the-financial-impact-of-porcine-reproductive-and-respiratory-syndrome-on-smallholder-pig-farmers-in-cambodia
#12
A Zhang, J R Young, S Suon, K Ashley, P A Windsor, R D Bush
Porcine reproductive and respiratory syndrome (PRRS) was first identified in Cambodia in 2010, causing serious problems on affected farms, although the costs of the disease have not been well defined. The household financial impact of a PRRS outbreak in Cambodia was investigated using partial budget analysis, examining the economic benefit of three proposed interventions: (i) quarterly PRRS vaccine use, (ii) biosecurity implementation, and (iii) implementation of vaccination and biosecurity. The analyses were applied to three farm models: (i) a two-sow breeder; (ii) a five-pig fattener; and (iii) a single-sow, three-pig farrow-to-finish/breeder...
March 18, 2017: Tropical Animal Health and Production
https://www.readbyqxmd.com/read/28315138/anticoccidial-effects-of-aloe-secundiflora-leaf-extract-against-eimeria-tenella-in-broiler-chicken
#13
Fredrick Kaingu, Dandan Liu, Lele Wang, Jianping Tao, Rebecca Waihenya, Helen Kutima
Anticoccidial effects of Aloe secundiflora crude leaf extract was tested in broiler chickens following oral infection with Eimeria tenella. Sixty 22-day-old birds were divided into six groups of ten birds each. Three treatment groups A, B, and C were fed with the extract (100, 250, and 500 mg/day, respectively) mixed in feed for 10 days, and three control groups: group D (drug control) administered 300 mg/l of sulfachloropyrazine sodium soluble powder in drinking water for 5 days, group E (infected/non-medicated positive control), and group F (uninfected/non-medicated negative control)...
March 17, 2017: Tropical Animal Health and Production
https://www.readbyqxmd.com/read/28315137/sheep-fed-with-banana-leaf-hay-reduce-ruminal-protozoa-population
#14
Cláudio Eduardo Silva Freitas, Eduardo Robson Duarte, Dorismar David Alves, Isabel Martinele, Marta D'Agosto, Franciane Cedrola, Angélica Alves de Moura Freitas, Franklin Delano Dos Santos Soares, Makenzi Beltran
A ciliate protozoa suppression can reduce methane production increasing the energy efficiency utilization by ruminants. The physicochemical characteristics of rumen fluid and the profile of the rumen protozoa populations were evaluated for sheep fed banana leaf hay in replacement of the Cynodon dactylon cv. vaqueiro hay. A total of 30 male sheep were raised in intensive system during 15 days of adaptation and 63 days of experimental period. The animals were distributed in a completely randomized design that included six replicates of five treatments with replacement levels (0, 25, 50, 75, and 100%) of the grass vaquero for the banana leaf hay...
March 17, 2017: Tropical Animal Health and Production
https://www.readbyqxmd.com/read/28299520/on-farm-feeding-interventions-to-increase-milk-production-in-lactating-dairy-cows
#15
Metha Wanapat, Suban Foiklang, Kampanat Phesatcha, Chainarong Paoinn, Thiwakorn Ampapon, Thitima Norrapoke, Sungchhang Kang
The objective of this study was to investigate the effect of tropical legume (Phaseolus calcaratus) mixed with ruzi grass feeding on the performance of lactating dairy cows. Eighty-eight lactating dairy cows from 22 smallholder dairy farms northeast of Thailand were assigned to respective dietary treatments according to a Randomized Completely Block Design (RCBD). Four cows were selected from each farm and were allocated into two different feeding groups as follows: ruzi grass and P. calcaratus mixed with ruzi grass (1:1 ratio), respectively...
March 15, 2017: Tropical Animal Health and Production
https://www.readbyqxmd.com/read/28283874/erratum-to-efficacy-of-vaccination-with-la-sota-strain-vaccine-to-control-newcastle-disease-in-village-chickens-in-nepal
#16
Sulochana Shrestha, Mamta Dhawan, Meritxell Donadeu, Baptiste Dungu
No abstract text is available yet for this article.
March 11, 2017: Tropical Animal Health and Production
https://www.readbyqxmd.com/read/28283873/mastitis-effects-on-reproductive-performance-in-dairy-cattle-a-review
#17
REVIEW
Narender Kumar, A Manimaran, A Kumaresan, S Jeyakumar, L Sreela, P Mooventhan, M Sivaram
The reproductive performance of dairy animals is influenced by several factors, and accumulating lines of evidence indicate that mastitis is one of the determinants. Most of the published information relating mastitis with reproduction has evolved based on retrospective approach rather than controlled clinical studies. The complex nature of both mastitis and reproduction could be a limiting factor for understanding their relationship in detail. In this review, we analyzed the available retrospective studies on the effects of clinical mastitis on reproductive function and explained the possible mechanisms by which mastitis affects reproduction in dairy animals...
March 11, 2017: Tropical Animal Health and Production
https://www.readbyqxmd.com/read/28283872/screening-food-borne-and-zoonotic-pathogens-associated-with-livestock-practices-in-the-sumapaz-region-cundinamarca-colombia
#18
Nelson E Arenas, Diego A Abril, Paola Valencia, Surabhi Khandige, Carlos Yesid Soto, Vilma Moreno-Melo
Hazardous practices regarding antibiotics misuse, unsanitary milking procedures, and the commercial sales of raw milk and unpasteurized dairy products are currently being practiced by livestock farmers in the Sumapaz region (Colombia). The purpose of this study was to screen for food-borne and zoonotic pathogens associated with local livestock practices. We evaluated 1098 cows from 46 livestock farms in the Sumapaz region that were selected by random. Of the total population of cattle, 962 animals (88%) were tested for bovine TB using a caudal-fold tuberculin test and 546 (50%) for brucellosis by a competitive ELISA...
March 11, 2017: Tropical Animal Health and Production
https://www.readbyqxmd.com/read/28283871/erratum-to-antimicrobial-resistance-and-virulence-profile-of-enterococci-isolated-from-poultry-and-cattle-sources-in-nigeria
#19
Emmanuel Ochefije Ngbede, Mashood Abiola Raji, Clara Nna Kwanashie, Jacob Kwada Paghi Kwaga
No abstract text is available yet for this article.
March 10, 2017: Tropical Animal Health and Production
https://www.readbyqxmd.com/read/28281163/effect-of-mycobacterium-avium-subsp-paratuberculosis-map-infection-on-the-diagnostic-accuracy-for-mycobacterium-bovis-m-bovis-infection-under-field-conditions-in-cattle-belonging-to-low-m-bovis-prevalence-herds
#20
E Raffo, P Steuer, G Monti, M Salgado
Currently, the Chilean authority has implemented a National Eradication Program for bovine tuberculosis (bTB), aimed at controlling and eradicating the disease in Chile. The area under study has a low within-herd prevalence, has a relatively low number of infected herds, and is one of the major milk and beef producing areas in the country. However, so far, no attempts at eradicating the disease have been successful. It has been suggested that the diagnostic tests used were either not sensitive or specific enough...
March 10, 2017: Tropical Animal Health and Production
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