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Tropical Animal Health and Production

Amir Saeed Samimi
The aim of the current study was to establish reference values for most important clinicohematological, electrolytes, acute phase proteins, and some cardiovascular biomarkers in lambs and kids from birth to 2 days of age. A total of 40 animals (20 lambs and 20 kids) were enrolled into the study from birth to 2 days of age. The neonates were born to Kermani ewes and Cashmere (Raini) does of 3 years of age weighing 42 ± 1 and 30 ± 2 kg, respectively, during the breeding season. Mothers of the neonates were reared under the same husbandry and management conditions in the same group pen...
February 19, 2019: Tropical Animal Health and Production
Marcos Vinicius Biehl, Marcos Vinicius Castro de Ferraz Junior, José Paulo Roman Barroso, Ivanete Susin, Evandro Maia Ferreira, Daniel Montanher Polizel, Alexandre Vaz Pires
This study aimed to evaluate the effect of progesterone (P4) device reutilization in long and short protocols for transcervical timed artificial insemination (TAI) in Santa Inês ewes. A total of 275 multiparous lactating ewes were blocked according to body weight (BW, 49.1 ± 7.3 means ± SE), body condition score (BCS, 2.9 ± 0.4; scale of 1-5), and days postpartum (50 ± 8.2 days), and allocated to one of the treatments. The treatments were arranged in a factorial design, in which the factor 1 was the P4 device type (new or a device of 0...
February 19, 2019: Tropical Animal Health and Production
A Yakubu, L Dahloum, E G Gimba
The present study was embarked upon to determine the breeding practices and choice of selection and breeding traits of cattle farmers in Nasarawa State and the Federal Capital Territory (FCT), Abuja, Nigeria. A total of 180 smallholder cattle herders were randomly sampled. However, analysis of data was restricted to 144 herders (81 from FCT and 63 from Nasarawa State). Primary data were collected through individual structured questionnaire administration. Chi-square (χ2) statistics were used to compare categorical variables...
February 14, 2019: Tropical Animal Health and Production
Aliasghar Moghaddam, Mohammad Panah, Manochehr Souri
The effect of an ad libitum supplementary feeding on some reproductive characteristics of ram lambs were evaluated. Twelve Sanjabi rams were allocated to one of two groups: control (C) and treatment (T). The control group received hay and the treatment group received hay and concentrate with gross energy and crude protein concentration of 4.52 Mcal and 16% of dry matter, respectively. At the end of experiment, after taking blood samples for determination of testosterone concentration (TC), all lambs were castrated and the testicular weight (TWT), testicular volume (TV), testicular length (TL), and testicular width (TW) were measured...
February 13, 2019: Tropical Animal Health and Production
Jilong Han, Hafiz Ishfaq Ahmad, Xunping Jiang, Guiqiong Liu
Sperm storage function of the sperm storage tubules (SSTs) is directly correlated with the fertility of laying hens. SSTs are located at the utero-vaginal junction (UVJ) and infundibulum of the hen oviduct. However, little is known about the cellular and molecular mechanisms responsible for long-term sperm maintenance in the lumen of the SSTs. In this study, we profiled transcriptomes to detect the different gene expressions between infundibulum and UVJ using RNA-seq. As a result, we identified a total of 1382 differentially expressed genes (DEGs)...
February 12, 2019: Tropical Animal Health and Production
Saber Esmaeili, Ashraf Mohabati Mobarez, Mohammad Khalili, Ehsan Mostafavi, Pardis Moradnejad
Q fever is a major zoonotic disease in the world. The aim of this meta-analysis was to estimate the prevalence of Coxiella burnetii in animal milk in Iran. We systematically reviewed the literature to identify eligible studies from January 2008 to June 2016 in English or Farsi (Persian) databases. We extracted the molecular prevalence of C. burnetii in milk from cows, goats, sheep, and camels in Iran. The total prevalence of C. burnetii in cow milk was 15.09% (95% CI 11.08-19.10) by PCR methods. The highest and lowest prevalence of Q fever agent were seen in the East Azerbaijan (25...
February 11, 2019: Tropical Animal Health and Production
Biniam Tsegaye Lakew, Taresa Fayera, Yimer Muktar Ali
A cross-sectional study was carried out to determine the prevalence and risk factors of bovine mastitis caused by Streptococcus agalactiae from farms in and around Haramaya district, eastern Ethiopia. A total of 384 lactating cows were selected from small-, medium-, and large-scale production systems. California mastitis test (CMT) was used for screening subclinical mastitis. Out of the total animals examined, 63.02% (n = 242) had mastitis, where 6.77% (n = 26) and 56.25% (n = 216) were clinical and subclinical mastitis respectively...
February 11, 2019: Tropical Animal Health and Production
Epigmenio Castillo-Gallegos, Bernardo de Jesús Marín-Mejía
The objective of this study was to compare the fit of seven functions to cumulative daily milk yield records of grazing F1 (Holstein × Zebu) cows in a dual-purpose cattle production unit of the Mexican tropics. Fifty-seven lactations from cows that calved from 1998 to 2001 were used. The functions were quadratic without intercept, three with two segments (both segments linear, the first segment quadratic and the second linear, and both segments quadratic), and three classical growth functions (Gompertz, logistic, and Richards)...
February 11, 2019: Tropical Animal Health and Production
Thiwakorn Ampapon, Metha Wanapat
The objective of this study was to evaluate the effect of rambutan (Nephelium lappaceum) fruit peel powder (RP) on fermentation characteristics, rumen microorganisms, and in vitro gas production. Three levels of crude protein (CP) in the concentrate (14%, 16%, and 18% CP) and supplementation of rambutan peel powder (0, 2, 4, and 6% of the total dietary substrate) were designed for treatments according to 3 × 4 factorial arrangement in a completely randomized design (CRD). The rumen fluid samples were collected from two-fistulated dairy bulls which had been fed on rice straw with concentrate to adjust the rumen environment...
February 9, 2019: Tropical Animal Health and Production
Umesh B Kumbhar, Sarita U Gulavane, Sandeep M Gaikwad, Raju R Shelar, Vaibhav P Deshpande, Ruth Rebeiro, Krishna Yadav
The present research work entitled "Correlation of testicular ultrasonography, testicular biometry, serum testosterone levels and seminal attributes in pre- and post-pubertal age for breeding soundness evaluation in Osmanabadi bucks" was undertaken in 18 healthy Osmanabadi bucks from the Instructional Livestock Farm Complex, Bombay Veterinary College, Mumbai, Maharashtra. The body weight (kg), scrotal circumference (cm) and testicular biometry (cm) of post-weaning 18 Osmanabadi male kids was recorded every 15 days from weaning, i...
February 9, 2019: Tropical Animal Health and Production
Bui Phan Thu Hang, Ewa Wredle, Stefan Börjesson, Kerstin Svennersten Sjaunja, Johan Dicksved, Anna Duse
This study investigated the occurrence of antimicrobial-resistant Escherichia coli in dairy calves in southern Vietnam. Fecal samples were taken directly from the rectum of 84 calves from 41 smallholder dairy farms, when newborn and at 14 days of age for isolation of E. coli. Escherichia coli strains were isolated from 144 of the 168 fecal samples tested. Of the 144 E. coli isolates, 40% were found to be susceptible to all 12 antimicrobial drugs tested and 53% of the E. coli isolates were resistant to at least three antimicrobials...
February 8, 2019: Tropical Animal Health and Production
M R Ventura, D Bastianelli, S Deniz, P Saavedra, L Rey, L Bonnal, E González-García
The objective of this study was to contribute to the characterization of nutritional potentials, with special attention to the total phenol and condensed tannins content and the effects on in vitro digestibility of some browsing shrub legumes traditionally used for ruminant feeding. The varieties selected were Bituminaria bituminosa var. bituminosa (BBB), Bituminaria bituminosa var. albormaginata (BBA), Chamaecytisus proliferus var. palmensis (CPP), Chamaecytisus proliferus var. canariae (CPC), and Adenocarpus foliosus (AF)...
February 7, 2019: Tropical Animal Health and Production
Srinivasu B, V Chinni Preetam, Gurram Srinivas, D Srinivas Rao
The objective of the present study was to investigate the comparative efficacy of recommended dose of selected anticoccidial drugs Salinomycin and Dinitolmide, while Cocciban at three dose levels on the hematobiochemical, fecal parameters and histopathology of broilers. For this purpose, 420-day-old commercial male broiler chicks were randomly divided into 7 treatment groups with 10 replications of 6 birds each and reared in battery brooders up to 42 days of age. Groups were designated as uninfected unmedicated (T1 ), infected unmedicated (T2 ), Cocciban 500 g/ton and infected (T3 ), Cocciban 750 g/ton and infected (T4 ), Cocciban 1000 g/ton and infected (T5 ), Salinomycin 500 g/ton and infected (T6 ), and Dinitolmide and infected (T7 )...
February 7, 2019: Tropical Animal Health and Production
Mohammad Hossein Fallah Mehrabadi, Arash Ghalyanchilangeroudi, Seyed Ali Ghafouri, Mohammad Malekan, Zahra Ziafati, Hossein Hosseini, Fatemeh Sadat Mousavi, Masoumeh Jabbarifakhr, Leila Aghaeean
Since 1998, Iran's poultry industry has faced several outbreaks of low pathogenic avian influenza H9N2. Tissue samples were collected from a broiler flock with respiratory symptoms in autumn 2017. After that, virus isolation and confirmation of H9N2 using RT-PCR, sequencing, and bioinformatic analysis for all eight genes were performed. The phylogenic analysis revealed HA gene of recent Iranian isolate (A/chicken/Mashhad/UT-Barin/2017) which was clustered in G1 sublineage. In addition, all eight genes of the virus were placed with Pakistani isolates of 2015 in separate group...
February 7, 2019: Tropical Animal Health and Production
Wéder Jânsen B Rocha, Robério R Silva, Fabiano F da Silva, Gleidson G P de Carvalho, Ana Paula G da Silva, João Wilian D Silva, Tarcísio R Paixão, Tiago B Freitas, Fabrício Bacelar L Mendes, Daniele S Barroso, Sinvaldo O de Souza, Laize V Santos
The objective of this trial was to evaluate intake, digestibility, and growth performance of Girolando bulls submitted to two nutritional planes while grazing on Brachiaria brizantha cv. Marandu pasture. Twenty-two animals, with average initial body weight = 209.1 ± 8.2 kg, were used in this trial. The experimental design was repeated measurements, in a 2 × 3 factorial arrangement, with two nutritional planes (NP1 and NP2) and three seasons of the year, with 11 replicates per treatment. The animals of the NP1 received mineral mixture ad libitum during rainy season 1 (15 February through 5 July 2014), energy protein supplement in the amount of 1 g d kg BW-1 during the dry season (from 6 July through 22 November 2014), and again mineral mixture ad libitum during rainy season 2 (from 23 November 2014 through 9 March 2015)...
February 6, 2019: Tropical Animal Health and Production
Ci Liu, Lin Zhang, Jiye Yang, Wenjia Zhang, Qianqian Wang, Jianxin Zhang, Jiaying Xin, Shuming Chen
Chemical composition and rumen degradability of waste vinegar residue (WVR) as roughage feed used for mutton sheep were evaluated in this work. Compared with the unfermented WVR, the WVR fermented by N. sitophila had more (P < 0.01) ash, crude protein (CP), and true protein (TP), less (P < 0.01) ether extract (EE), and significantly more carotenoid by about 27 times. But the contents of dry matter (DM), crude fiber (CF), neutral detergent fiber (NDF), and acid detergent fiber (ADF) had no obvious differences (P > 0...
February 4, 2019: Tropical Animal Health and Production
A R Chawala, G Banos, A Peters, M G G Chagunda
Decisions of breeding schemes in many countries in sub-Saharan Africa tend to be either government or project driven, with a focus on upgrading local breeds. However, there is scant information on the individual animal traits that smallholder farmers prefer. The aim of this study was to examine farmers' preferences of dairy cattle traits using a discrete choice experiment methodology. The study was conducted through visits to 555 randomly selected dairy farms in the sub-humid Eastern coast and temperate Southern highlands of Tanzania...
February 4, 2019: Tropical Animal Health and Production
Adriana Garzón-Audor, Olimpo Oliver-Espinosa
Ketosis is a metabolic disorder that has an important impact on health and productivity in dairy cattle during early lactation. In Colombia, the incidence and risk factors for ketosis development have not been studied. The objectives of the present study were to determine the incidence of subclinical (SCK) and clinical ketosis (CK) and to determine the risk factors associated with ketosis within the first 6 weeks of lactation in dairy cattle in Colombia. A prospective cohort study was carried out. A convenience sample of 150 lactating dairy cows from ten commercial dairy farms in the Cundi-Boyacencian Andean plateau were tested weekly using a point of care device to measure β-hydroxybutyrate during the first 6 weeks of lactation...
February 4, 2019: Tropical Animal Health and Production
Ismaïl Boujenane, Nadia El Khattaby, Houda Laghouaouta, Bouabid Badaoui, Mohammed Piro
Fourteen body measurements of 132 adult female camels belonging to three populations Guerzni (60), Khouari (28), and Marmouri (44) reared in 38 herds of 8 provinces of Southern Morocco were studied to identify homogeneous groups according to their conformation. The measurements were chest girth (CG), hump girth (HG), height at withers (HW), body length (BL), fore limb length (FLL), chest width (CW), chest depth (CD), fore hoof circumference (FHC), head length (HL), distance between eyes (DE), ear length (EL), neck length (NL), neck circumference (NC), and tail length (TL)...
February 2, 2019: Tropical Animal Health and Production
Shajeela Iram, Syed Khurram Fareed, Maimoona Chaudhary, Mehir Un Nisa Iqbal, Rubina Ghani, Taseer Ahmed Khan, Tanveer Abbas
Fungal toxins in feed are leading issue in poultry industry causing a detrimental effect on the performance and health of poultry. The study was carried out to determine the incidence and concentration of the aflatoxins and their major producer Aspergillus flavus in home mix layer poultry feed in respect of seasonal variation throughout the year. A total of (n = 204) home mix poultry layer feed samples were analyzed for the isolation of fungi. The isolates were initially screened through colony morphology and microscopic examination...
February 2, 2019: Tropical Animal Health and Production
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