Spei Domus

Number 2 Vol (19), 2023

9
Análisis bacteriológico y composicional de la leche bovina de cuatro municipios del departamento de Putumayo, Colombia

Authors: rez Delgado, D.F., Cely Leal, D., González, S.D., Niño Vera, L.J., Robledo Palomino

Abstract

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The bacteriological and compositional quality of raw bovine milk has very important economic and health implications for the agricultural development of the country. The aim of this research was to analyze raw bo-vine milk bacteriologically and compositionally from dual-purpose livestock production systems in the mu-nicipalities of Puerto Asís, Villagarzón, Orito and Valle del Guamuez in the department of Putumayo. For this, intentional sampling was used in 250 livestock farms, thus obtaining 854 milk samples. The parameters of somatic cells (cs/mL), aerobic mesophilic bacteria count (cfu/mL), fat, protein, lactose, and total solids were analyzed. The data obtained were subject to analysis of variance with a significance of 5%. A difference was evident for the parameters of fat and total solids between the municipalities. When analyzing the results with respect to the ntc 399 raw milk standard, the parameters of somatic cells, mesophilic bacteria, protein, lactose, and total solids are met in the four municipalities. For its part, the fat parameter is met in Puerto Asís and Valle del Guamuez

15
Evaluación de la calidad interna, externa y vida útil del huevo comercial en condiciones de trópico

Authors: Guerrero Díaz SM, Sanabria Naranjo F, Sánchez Guerrero JA, Castellanos Flórez CJ, Gamboa González N

Abstract

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The internal and external quality parameters of the egg are indicators of the freshness state that it presents. The effect of time on the quality of the commercial egg stored on the shelf was evaluated. 120 eggs from the Isa Brown and HyN Brown Nick genetic lines were used, divided into two groups (group A and group B). The variables were measured every three days until day 28 of the egg’s age. Weight, haugh units, yolk pigmentation, shell thickness, yolk index, albumin and yolk pH and visual inspection were analyzed. Significant differences were observed in (p> 0.05) in most of the variables analyzed during the study time. Both groups showed a decrease in egg weight (-3.1 g group A and 3.8 g group B), haugh units (-26.2 g group A and -34.7 g group B), yolk index (-0.34% group A and -0.36% group B), visual inspection (-6 points group A and 3.7 points group B), yolk pigmentation (- 2.1 group A and -1.4 group B) and albumin pH (-1 group A and -0.5 group B); after 28 days of storage. As for the yolk pH, it did not show significant differences (p> 0.05), the values remained during the study. The environment influenced the quality parameters of the egg, reducing its freshness level, except for the yolk Ph, which had a lower degradation process

Number 1 Vol (19), 2023

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Comportamiento ingestivo de cabras en un sistema de pastoreo controlado de sucesiones naturales en bosque seco tropical

Authors: Rúa CV, Tarazona A

Abstract

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Introduction: Goats are selected browsing and selective ruminants, in natural conditions they use up to once hours a day for food consumption. The objective of this study was to evaluate the ingestive behavior and other diurnal behaviors in adult female goats. Methodology: Twelve animals were evaluated under a grazing system with the presence of native trees scat-tered in the low tropics, without introduced grasses and with a supplementation composed of cut grasses and canoe concentrate within the paddock. The observation of the behaviors was carried out for twelve hours a day and a frequency of five in three days, with which 876 observations were obtained per day and 2628 observa-tions in total, climatic variables were taken into account. The information was processed using the Microsoft Excel program and a multiple correspondence analysis was made, using the R statistical package. Results: The consumption behavior in grazing was presented with a higher frequency during the day (26.4 %), decreasing among the 6:00 a.m. to 9:00 a.m., where high precipitation was evidenced and at 11:00 and 16:00 by canoe supplementation. The browsing behavior was presented in 8.95%, with less frequency in the hours between 9:00 a.m. to 2:00 p.m. Quiet and rumination behavior in the lateral ulna position represented 20.4% and 11.5% respectively, both observed throughout the day. Behaviors such as sleeping, drinking and consuming salt, presented very low frequencies. Conclusions: Goats present a constant ingestive behavior during the hours of the day evaluated.

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Evaluación de la información documentada (norma ISO 9001: 2015) : Bioterios convencionales en Venezuela

Authors: Moya Acosta, M.J., Barreto M., Goncalves I., Morales A

Abstract

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To assure the quality of work with laboratory animals, it is essential to standardize their breeding and mainte-nance processes. The ISO 9001:2015 standard meets the requirements that certify the Quality Management Systems of an organization. The work focuses primarily on the establishment and evaluation of documented information of the processes referred to in requirement 7.5 of ISO 9001: 2015; this regulatory requirement is part of a management system that focuses on customer satisfaction with respect to meeting their needs. A descriptive and exploratory research was conducted. An instrument (survey) was designed where informa-tion was collected on the use of documentation in production and experimental processes. 22 conventional bioterias registered in the Asociación Venezolana para la Ciencia de Animales de Laboratorio (avecal) were studied. The instrument was sent via email to the Heads of each one of the Bioterias. Data were collected and tabulated according to the variables investigated. It was evidenced that 81.8% of these bioterias do not have documents that allow a control and monitoring of their processes. Likewise, those responsible are unaware of the national legal framework, such as the Ley Orgánica del Sistema Venezolano para la Calidad, Normas Generales de Control Interno de la Contraloría General de la República and the ISO 9001:2015. The design of a methodological guide is recommended, so that national bioterias prepare their documents following clause 7.5 of the ISO 9001: 2015 standard to improve the efficiency of their processes.

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Síndrome de persistencia de los conductos de Müller en caninos machos de raza schnauzer. Reportes de casos

Authors: Quintana-Avila VM, Galeano-Pinilla. YA, Pulido-Medellín MO.

Abstract

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Case report study where the syndrome of persistence of the Mullerian ducts in male canines of the Schnauzer breed is analyzed, characterizing the symptomatology associated with the presence of pyometra in cases of pseudohermaphroditism, this is part of a process of sexual differentiation that is It begins in the uterus and continues in development until reaching maturity, dividing into three phases: chromosomal, gonadal and phe-notypic sex, an alteration in sexual development is the syndrome of persistent Mullerian ducts that is present in cases of apparent hermaphroditism male, which is hereditary, autosomal, recessive in XY individuals, in which the presence of the uterus and other structures of the female reproductive tract is observed in a male animal, derived from an interference in the response to the anti-Müllerin hormone at the receptor, which has been reported in dogs of the Miniature Schnauzer breed, from this perspective in this article we report So three clini-cal cases observed in a veterinarian in Bucaramanga, the symptoms reported indicate episodes of decay, fever, diarrhea, abdominal palpation pain and tenesmus, alterations in blood chemistry, in the clinical examination pyometra was observed, and purulent dripping discharge from of the urethra, gynecomastia and cryptorchism, recurrent appearance in cases of canine pseudohermaphroditism.