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Tropical Animal Health and Production

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https://www.readbyqxmd.com/read/28429190/study-on-environmental-indices-and-heat-tolerance-tests-in-hair-sheep
#1
L Seixas, C B de Melo, A M Menezes, A F Ramos, G R Paludo, V Peripolli, C B Tanure, J B G Costa Junior, C McManus
The ability to predict the effects of climatic factors on animals and their adaptability is important for livestock production. The aim of the present study was to analyze whether existing indices are suitable for evaluating heat stress in Santa Ines and Morada Nova sheep, which are locally adapted hair sheep breeds from northeastern Brazil, and if the limits used to classify thermal stress are suitable for these breeds. Therefore, climatic, physiological, and physical parameters, as well as thermographic images, were collected in 26 sheep, 1 1/2 years old, from two genetic groups (Santa Ines 12 males and 4 females; Morada Nov...
April 20, 2017: Tropical Animal Health and Production
https://www.readbyqxmd.com/read/28425017/spineless-cactus-associated-with-tifton-hay-or-sugarcane-bagasse-may-replace-corn-silage-in-sheep-diets
#2
Julimar do Sacramento Ribeiro, Luana Lira Santos, Dorgival Morais de Lima Júnior, Tobyas Maia de Albuquerque Mariz, Márcio Machado Ladeira, Paulo Sérgio de Azevedo, Carolyny Batista Lima, Maria Josilaine Matos Dos Santos Silva
The effect of the replacement of corn silage with spineless cactus associated with Tifton 85 hay or sugarcane bagasse was evaluated on the performance, body weight components and sheep meat quality. Twenty-one Santa Inês male sheep with initial body weight of 22.9 ± 2.9 kg were used. They were confined in individual stalls for 74 days receiving the following diets: corn silage + concentrate (CS); spineless cactus + Tifton 85 hay + concentrate (TH); spineless cactus + sugarcane bagasse + concentrate (SB)...
April 19, 2017: Tropical Animal Health and Production
https://www.readbyqxmd.com/read/28412767/herbage-intake-and-milk-yield-in-comisana-ewes-as-effect-of-4-vs-7%C3%A2-h-of-grazing-during-late-lactation
#3
Bernardo Valenti, Donata Marletta, Anna De Angelis, Fortunato Di Paola, Salvatore Bordonaro, Marcella Avondo
Thirty-two Comisana ewes at late lactation were used in two trials carried out during late spring in 2 consecutive years, with the aim to evaluate the effect of the duration of grazing on herbage intake and performance. In each trial, 16 pluriparous Comisana lactating ewes were equally divided into two groups which grazed in two separate areas of natural pasture from 11:00 to 15:00 h (group 4H) or from 10:00 to 17:00 (group 7H). A concentrate mixture (500 g/day) was also offered to each ewe. The mean maximum temperature was, respectively, 23...
April 15, 2017: Tropical Animal Health and Production
https://www.readbyqxmd.com/read/28401328/equine-colic-clinical-epidemiology-and-associated-risk-factors-in-and-around-debre-zeit
#4
Yonas Worku, Workneh Wondimagegn, Nigatu Aklilu, Zerihun Assefa, Ayele Gizachew
A prospective study was conducted to describe clinical epidemiology of equine colic in the Society for Protection of Animal Abroad and Donkey Sanctuary Project Clinic, at Debre Zeit, Ethiopia, from November 2014 to April 2015. The objectives were to describe clinical epidemiology of equine colic, to characterize the main types of equine colic, and to determine the major risk factors associated with equine colic. The method which was used in the study was attending clinical case of equine and assessing physiological parameters, fecal egg count, abdominal sounds, and rectal examination as well as questioner interviewing of the owners...
April 11, 2017: Tropical Animal Health and Production
https://www.readbyqxmd.com/read/28397034/comparison-of-milk-fatty-acid-profiles-measured-on-kouri-cows-near-lake-chad-and-on-dairy-cattle-as-reported-by-meta-analytical-data
#5
O Bada Algom, C Fabry, P L Leroy, J-L Hornick
Kouri (Bos taurus) is a breed aboriginal from Lake Chad and threatened with extinction. This study aimed to compare milk fatty acid profiles measured on Kouri cows and on high-yielding dairy cattle in Europe and elsewhere as reported by meta-analytical data (22 experimentations). Milk samples were collected from 14 Kouri dairy cows in dry season (March to June) and fatty acids (FA) were determined by gas chromatography. Overall, 32 FA have been identified. Kouri showed lower values (P < 0.001) in the sum of saturated FA (SFA, -10...
April 10, 2017: Tropical Animal Health and Production
https://www.readbyqxmd.com/read/28389982/the-assessment-and-the-farmers-perceived-ranking-of-feed-resources-and-coping-strategies-with-feed-scarcity-in-smallholder-dairy-farming-in-selected-district-towns-of-jimma-zone-ethiopia
#6
Belay Duguma, Veronique Dermauw, Geert Janssens
Inadequate quantity and quality of feed resources are major constraints limiting milk production and reproductive performance of dairy cattle in Ethiopia. The aim of this study was to assess dairy cattle feed resources, feeding practices, the farmers' perceived ranking of feed resources, causes of feed shortage, and coping strategies to feed scarcity in smallholder dairy system in selected district towns of Jimma Zone, Ethiopia. Data were obtained by interviewing 52 randomly selected smallholder dairy farmers using structured questionnaires and through direct observations...
April 8, 2017: Tropical Animal Health and Production
https://www.readbyqxmd.com/read/28386840/effects-of-supplements-containing-different-additives-on-nutritional-and-productive-performance-of-beef-cattle-grazing-tropical-grass
#7
V V Carvalho, M F Paulino, E Detmann, M L Chizzotti, L S Martins, A G Silva, S A Lopes, F H Moura
A grazing trial was carried out to evaluate the inclusion of three feed additives in supplements (crude protein, CP 230 g/kg dry matter, DM) on the performance, voluntary intake, and digestibility of beef heifers grazing Brachiaria decumbens (CP 81 and neutral detergent fiber, NDF 615 g/kg DM). Thirty-five Nellore heifers (21 months of age and 383 ± 6.29 kg of body weight, BW) were used in a completely randomized design. The treatments were as follows: no supplement (control); supplement fed at 1 kg/animal/day without additives (S); supplement with monensin (S + M); supplement with yeast culture (S + YC); and supplement with enzyme complex (S + EC)...
April 7, 2017: Tropical Animal Health and Production
https://www.readbyqxmd.com/read/28382380/ungulate-copiparvovirus-2-in-healthy-and-postweaning-multisystemic-wasting-syndrome-affected-pigs
#8
Samuel P Cibulski, Thais F Teixeira, Ana Paula M Varela, Camila M Scheffer, Helton F Santos, Francisco E S Lima, Paulo M Roehe
A SYBR Green-based real-time polymerase chain reaction (qPCR) was designed to detect Ungulate copiparvovirus 2, also known as porcine parvovirus 4 (PPV4). The test was applied to search for PPV4 DNAemia in sera from 1- to 4-month-old pigs displaying signs of postweaning multisystemic wasting syndrome (PMWS), as well as in sera from healthy swine at equivalent age and in sera from older healthy animals (>6 months old). High levels of PPV4 DNA were detected in PMWS-affected pigs. The mean viral DNA load in PMWS-affected pigs was 5...
April 5, 2017: Tropical Animal Health and Production
https://www.readbyqxmd.com/read/28365820/spatialization-of-brazilian-pig-production-relationship-between-productive-physical-environmental-and-socio-economic-variables
#9
Isabel C M da Silva, Bárbara Bremm, Jennifer L Teixeira, Nathalia S Costa, Júlio O J Barcellos, José Braccini, Robson J Cesconeto, Concepta McManus
Brazilian pig production spans over a large territory encompassing regions of different climatic and socio-economic realities. Production, physical, socio-economic, and environmental data were used to characterize pig production in the country. Multivariate analysis evaluated indices including number productivity, production levels, and income from pigs, together with the average area of pig farm and socio-economic variables such as municipal human development index, technical guidance received from agricultural cooperatives and industrial companies, number of family farms, and offtake; and finally, environmental variables: latitude, longitude, annual temperature range, solar radiation index, as well as temperature and humidity index...
April 1, 2017: Tropical Animal Health and Production
https://www.readbyqxmd.com/read/28364266/a-study-on-some-reproductive-disorders-in-dromedary-camel-herds-in-saudi-arabia-with-special-references-to-uterine-infections-and-abortion
#10
Abdelmalik I Khalafalla, Marzook M Al Eknah, Mahmoud Abdelaziz, Ibrahim M Ghoneim
Dromedary camels complaining from conception failure or abortion were investigated and their herders interviewed in Al Ahsa province, Kingdom of Saudi Arabia (KSA) during 2013 and 2015. The most important reproductive disorder according to the responders is uterine infection (60.2%) followed by obesity (22.3%) then physiological conditions (hormonal disturbances; 7.8%), adhesions (3.9%) and repeat breeders (2.9%). Of the camel herders, 78.6% reported previous occurrence of abortion in their herds and 46% reported abortion cases in the last season (2015/2016), while 21...
March 31, 2017: Tropical Animal Health and Production
https://www.readbyqxmd.com/read/28364265/molecular-characterization-and-snp-identification-in-hspb6-gene-in-karan-fries-bos-taurus-x-bos-indicus-cattle
#11
Rakesh Kumar, I D Gupta, Archana Verma, Ragini Kumari, Nishant Verma
Heat shock proteins (HSPs) act as molecular chaperones which are preferentially transcribed in response to severe perturbations of the cellular homeostasis such as heat stress. The present study was undertaken for molecular characterization and detection of genetic polymorphisms of HSPB6 gene in 100 Karan Fries Cattle. HSPB6 gene was mapped on Bos taurus autosome 18 (BTA 18), comprising three exons and two introns. Four sets of primers for HSPB6 gene were designed using Primer3 software (version 0.4.0). For detecting single nucleotide polymorphisms (SNPs), sequence data was analyzed using BioEdit software (version 7...
March 31, 2017: Tropical Animal Health and Production
https://www.readbyqxmd.com/read/28357645/seroprevalence-and-risk-factors-for-leptospirosis-in-cattle-sheep-and-goats-at-consorted-rearing-from-the-state-of-piau%C3%A3-northeastern-brazil
#12
Ângela Piauilino Campos, Dayane Francisca Higino Miranda, Huanna Waleska Soares Rodrigues, Micherlene da Silva Carneiro Lustosa, Gustavo Henrique Chaves Martins, Ana Lys Bezerra Barradas Mineiro, Vanessa Castro, Sérgio Santos Azevedo, Silvana Maria Medeiros de Sousa Silva
Leptospirosis is an endemic disease in Latin America, caused by pathogenic bacteria of the genus Leptospira. It is considered one of the main causes responsible for the negative economic impact on global livestock by causing reproductive problems. The research aimed to determine the prevalence of leptospirosis in cattle, sheep, and goats at consorted rearing in the micro-region of Teresina, Piauí state, northeastern Brazil, as well as to identify prevalent serovars and risk factors associated with seroprevalence...
March 29, 2017: Tropical Animal Health and Production
https://www.readbyqxmd.com/read/28357644/effects-of-feeding-practices-on-milk-yield-and-composition-in-peri-urban-and-rural-smallholder-dairy-cow-and-pastoral-camel-herds-in-kenya
#13
O B Kashongwe, B O Bebe, J W Matofari, C G Huelsebusch
Associations between feeding practices, milk yield, and composition were assessed in smallholder rural and peri-urban dairy cow (n = 97) and pastoral camel (n = 15) herds. A cross-sectional survey supplemented by follow-up collection of feed and milk samples for laboratory analyses was conducted. Data was analyzed using descriptive, correlation, and analysis of variance statistics. Feeding practices in rural smallholder dairy cows' herds were pastured based (87.7%) with napier grass (89.4%) and concentrates (93...
March 29, 2017: Tropical Animal Health and Production
https://www.readbyqxmd.com/read/28352962/helminthiasis-characterization-and-anthelmintic-efficacy-for-ewes-and-lambs-raised-in-tropical-semiarid-region
#14
Gabriela Almeida Bastos, Leydiana Duarte Fonseca, Adriano Vinícius de Paiva Ferreira, Marco Aurélio Morais Soares Costa, Maria Luiza França Silva, Viviane de Oliveira Vasconcelos, Rogério Marcos de Sousa, Eduardo Robson Duarte
In this study the helminthiasis and anthelmintic effectiveness in ewes and lambs were evaluated in a semiarid region of Brazil. Twelve sheep farms were investigated using semi-structured questionnaires and fecal egg count (FEC) reduction test was employed to analyze the profile of anthelmintic resistance. Groups of at least 10 animals with FEC ≥ 300 were selected. After 12 h of fasting, homogeneous groups of lambs or ewes were treated with albendazole, levamisole moxidectin, or oxfendazole and control groups were not treated...
March 28, 2017: Tropical Animal Health and Production
https://www.readbyqxmd.com/read/28337572/genetic-appraisal-of-serological-response-post-vaccination-against-enterotoxaemia-et-in-malpura-and-avikalin-sheep
#15
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
#16
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/28332070/a-review-on-prevalence-control-measure-and-tolerance-of-tanzania-shorthorn-zebu-cattle-to-east-coast-fever-in-tanzania
#17
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
#18
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
#19
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
#20
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
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