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Effect of environmental factor on some litter traits of sows in the tropics Mexican

Abstract: Objective. To determine the effect of environmental factors on litter traits at birth and weaning, and their repeatabilities in four farms in the sub-humid tropics of Mexico. Materials and methods. Data from 46.249 to 50.316 litters for litter size at birth (

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Seasons and planting densities interaction on forage production of eight hybrids maize, Ecuador

Abstract: Objective. To assess the interaction effect of the season and planting densities on the production of eight INIAP corn hybrids. Materials and methods. A research process was conducted in 2013. It was applied a split - split plot design with three replication

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Relationship between gene polymorphism and milk production traits in Teleorman Black Head sheep breed

Abstract: Objective. This study is a preliminary step of a larger national program aimed to develop a strategy for “in situ” preservation of Teleorman Black Head sheep population. In this paper we estimated the effect of β-lactoglobulin, casein and prolactin on some qu

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Efficiency of threonine utilization in the growing pigs

Abstract: Objective. This study aimed to determine the marginal efficiency of threonine utilization in growing pigs by using the nitrogen balance technique. Materials and methods. Twelve castrated pigs with an average live weight of 72±2 kg were housed in metabolic cag

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Productive performance of naked neck chickens that were fed leaf meal shrubs
Santos M Herrera G Aslam Díaz C

Abstract: Objective. To compare the productive performance of naked neck chickens (phases of initiation, growth and final) that were fed meals Gliricidia sepium, Cajanus cajan and Morus alba leaves. Materials and methods. 192 chickens, 1-84 days of age were distributed

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The use of new practices for assessment of body condition score
Deniz Alic Ural

Abstract: Objective. Two body condition scoring systems were compared to those of interpretation of cow’s body condition at a local farm located in Aydin region, Turkey. Materials and methods. A total of 50 head Holstein-Friesian cows at 1st-4rd parity (mid-lactation),

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The effect of Glycoline® on reproductive efficiency in high-producing dairy cows

Abstract: Objective. Determine the effect of Glycoline® on reproductive efficiency in high producing dairy cows. Materials and methods. 100 Holstein cows one month before delivery were selected. About 21 days before parturition they were put in a barn and were randomiz

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Digestibility of diets with flour fish silage for the growing of arawana (Osteoglossum bicirrhossum)

Abstract: Objective. The purpose of this research was to evaluate the digestibility of different nutritional and energy components of artificial diets containing flour fishsilage used in growing of arawana fingerlings (O. bicirrhossum). Materials and methods. 240 finge

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Feeding habits of Cocobolo Andinoacara pulcher in the cienaga Grande de Lorica, Colombia

Abstract: Objective. The feeding habits of Cocobolo (Andinoacara pulcher) in the cienaga Grande de Lorica, Sinu river basin, were studied. Materials and methods. The stomach content was analyzed using the Proportion of empty stomachs, Grade of digestion, Frequency of o

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Supplementation with humic substances affects the innate immunity in layer hens in posfasting phase
Rosa Sanmiguel P Iang Rondón B

Abstract: Objective. Asses the effect of supplementation with Humic substances (HS) over some innate immunity parameters (serum bactericidal activity, phagocytosis, bacterial agglutination, respiratory burst and lisozyme activity) in phase after fasting of layer hens.

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Spatial and temporal length distribution of Zungaro zungaro caught in the Orinoco River Basin of Colombia
Hernando Ramírez-Gil

Abstract: Objetive. To determine the effect of fishing on capture size of both male and female Zungaro zungaro catfish, historical records of size and spatial distribution of the species were analyzed from the Orinoco Basin in Colombian. Materials and methods. Informat

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First approach to molecular epidemiology of bovine tuberculosis in Colombia

Abstract: Objective. To investigate the presence of Mycobacterium bovis and other Mycobacterium species in samples of cattle and buffalo in Colombia, to start the molecular characterization of M. bovis in the country. Material and methods. 492 samples were collected fr

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Persistence of pathogens in liquid pig manure processed in manure tanks and biodigesters

Abstract: Objective. To evaluate the persistence of virus, bacteria, mold, yeast and parasites in liquid pig manure, processed in biodigesters and manure tanks in the central-western part of Colombia. Materials and methods. A directed observational study analyzed descr

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Heritabilities and genetic trends for reproductive traits in a population of Romosinuano cattle in Colombia

Abstract: Objective. The aim of this study was to estimate heritabilities and genetic trends for reproductive traits in a beef cattle population Romosinuano. Material and methods. Age at first calving (AFC), first calving interval (FCI), and second calving interval (SC

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Proximate composition analysis posterior to the cryopreservation of Chaetoceros calcitrans

Abstract: Objective. The effect of cryopreservation on the proximate composition of microalgae Chaetoceros calcitrans was evaluated. Materials and methods. C. calcitrans was cultured and cryopreserved using 5% (v/v) dimethylsulfoxide as cryoprotectant. The freezing was

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Hematological parameters in shortnose guitarfish Zapteryx brevirostris Müller and Henle, 1841 (Chondrichthyes, Rhinobatidae)

Abstract: Objective. In view of the deficiency of information in the area of clinical pathology of elasmobranchs, mainly of the physiological parameters, the aim of this work was to study hematological parameters of the Zapteryx brevirostris species. Materials and meth

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