ABSTRACT
Dificuldade alimentar é todo problema que afeta negativamente o processo dos pais ou cuidadores de suprirem alimento ou nutrientes à criança. O objetivo deste trabalho foi investigar as dificuldades alimentares em pré-escolares de uma escola municipal de educação infantil de Uruguaiana/RS. O estudo foi aprovado pelo Comitê de Ética em Pesquisa e realizado entre outubro e novembro de 2022. Foram convidadas a participar da pesquisa todos os pais ou responsáveis das crianças (n=70) que frequentavam a escola, na faixa etária de 4-5 anos. Todos receberam o Termo de Consentimento Livre e Esclarecido, bem como o questionário de pesquisa. O instrumento utilizado foi a Escala Brasileira de Alimentação Infantil (EBAI), que possui 14 perguntas referentes à alimentação das crianças. Foi realizada estatística descritiva, em termos de frequência e realizada análise de variância (ANOVA) para comparações entre os sexos (p<0,05). Foram obtidas 31 respostas dos pais relativas à alimentação das crianças. Os dados revelaram que 9,68% (n=3) possuíam algum grau de dificuldade alimentar, sendo 3,33% (n=1) com grau severo e 6,45% (n=2) com grau moderado. As demais crianças (n=28) também apresentaram comportamentos relacionados às dificuldades alimentares, porém, sem pontuação suficiente para serem classificadas com dificuldade alimentar. Os comportamentos mais frequentemente descritos foram: o responsável usar distrações ou ir atrás da criança para que ela coma, tempo de a alimentação em torno de 31-60min ou mais, criança que nauseia, cospe ou vomita com algum tipo de alimento e a influência negativa da alimentação nas relações familiares. Desta forma, observou-se um baixo percentual de dificuldades alimentares na população estudada, de acordo com a literatura estudada.
Feeding difficulties are any problem that negatively affects the process of parents or caregivers providing food or nutrients to the child. The objective of this work was to investigate eating difficulties in preschool children at a municipal early childhood education school in Uruguaiana/RS. The study was approved by the Research Ethics Committee and carried out between October and November 2022. All parents or guardians of children (n=70) who attended school, aged 4-5 years, were invited to participate in the research. Everyone received the Free and Informed Consent Form, as well as the research questionnaire. The instrument used was the Brazilian Infant Feeding Scale (EBAI), which has 14 questions regarding children's nutrition. Descriptive statistics were performed in terms of frequency and analysis of variance (ANOVA) was performed for comparisons between sexes (p<0.05). 31 responses were obtained from parents regarding children's nutrition. The data revealed that 9.68% (n=3) had some degree of feeding difficulty, 3.33% (n=1) with a severe degree and 6.45% (n=2) with a moderate degree. The remaining children (n=28) also presented behaviors related to feeding difficulties, however, without enough scores to be classified as having feeding difficulties. The most frequently described behaviors were: the caregiver using distractions or going after the child to make them eat, feeding time around 31-60 minutes or more, child who nauseates, spits or vomits with some type of food and the negative influence of food in family relationships. Thus, a low percentage of feeding difficulties was observed in the studied population, in accordance with the literature studied.
ABSTRACT
Resumen: Los problemas pediátricos de la alimentación ocurren en una alta proporción de niños, y en especial en aquellos con trastornos del desarrollo. De no ser atendidos, estos problemas pueden tener repercusiones negativas en la salud de los infantes, como: pérdida severa de peso, malnutrición, retardo en el crecimiento, y en casos extremos la muerte. La aproximación del análisis conductual aplicado al desarrollo de métodos de evaluación y tratamiento de problemas de alimentación en niños ha probado ser exitosa para incrementar la ingesta, al mismo tiempo que disminuye la conducta desadaptativa. En este artículo, el primero de su tipo en lengua castellana, se realiza una revisión crítica de los métodos de evaluación y tratamiento desarrollados bajo una perspectiva analítico-conductual, se ejemplifica su aplicación en un caso clínico, y se plantean futuras líneas de investigación en esta área. Se concluye que los procedimientos desarrollados desde esta perspectiva han probado ser efectivos para tratar los problemas pediátricos de la alimentación. La investigación futura deberá enfocarse en delimitar los parámetros de los tratamientos en un esfuerzo por determinar la efectividad de estos, así como en desarrollar programas de entrenamiento para padres, con el fin de tratar y prevenir problemas de alimentación en sus hijos.
Abstract: Pediatric feeding problems occur in a significant proportion of children, especially, in those with developmental disabilities. If unattended, these problems can have negative effects on children's health, such as: severe weight loss, malnutrition, delayed linear growth and in extreme cases, death. The behavior-analytic approach to the assessment and treatment of feeding problems with children has proven to be successful in increasing appropriate eating while decreasing maladaptive behavior. In this paper, the first of its kind in Spanish, a critical review of assessment and treatment methods developed under a behavioral-analytic perspective is conducted, its clinical application is illustrated with a case study and new lines of research are proposed. It is concluded that the procedures developed within this perspective have proven to be effective for the treatment of pediatric feeding problems. Future research should focus on delimiting treatment parameters in an effort to determine the effectiveness of treatments, as well as developing parent-training programs to treat and prevent feeding problems in their children.
ABSTRACT
Menidia humboldtiana, a native species of Mexico, is a common inhabitant of local reservoirs. It represents a highly appreciated fish of economic importance in the central part of the country because of its delicate flavor. Trophic behavior of this species is important to understand the relationships with other fish species in reservoirs. With the aim to study this specific topic, the trophic spectrum, selectivity coefficient and overlap, were determined among different sizes of the Silverside M. humboldtiana. For this, both zooplankton and fish samples were taken during four different seasons of 1995. Zooplankton samples were taken through a mesh (125micron), and all organisms were identified to generic level. Fish were captured and grouped into standard length intervals per season, and the stomach contents were obtained and analyzed. Trophic interactions included the stomach contents analysis (Laevastu method), the coefficient of selection (Chesson) and the trophic overlap (Morisita index modified by Horn) between sizes. A total of 14 zooplankton genera were identified, of which Bosmina was the most abundant (29 625 ind./10L) followed by Cyclops (9 496 ind./10L), during the spring. Small size fishes (1-4.9cm) consumed high percentages of Cyclops in the spring (61.24%) and winter (69.82%). Ceriodaphnia was consumed by fish sizes of 3-10.9cm (72.41%) and 13-14.9cm (95.5%) during the summer; while in autumn, small sizes (1-4.9cm) ingested Mastigodiaptomus and Ceriodaphnia; Daphnia and Bosmina were consumed by fishes of 5-8.9cm and the biggest sizes (9-14.9cm) feed on Ceriodaphnia. M. humboldtiana makes a selective predation by the genera Ceriodaphnia, Daphnia, Mastigodiaptomus, Bosmina and Cyclops, depending on the size length interval. The trophic overlap was very marked among all sizes on spring, autumn and winter, unlike in summer fish of 1-2.9 and 11-12.9cm did not show overlap with other length intervals. M. humboldtiana is a zooplanktivore species, which performs a selective predation and a marked trophic overlap between the different fish sizes.
Menidia humboldtiana es una especie nativa muy apreciada por su delicado sabor. Se determinó el espectro trófico, selectividad y solapamiento trófico de ésta, durante 1995 (épocas del año), se obtuvieron muestras de zooplancton e identificaron a nivel genérico. Los peces capturados se agruparon en intervalos de longitud estándar para cada época. Se analizaron los contenidos estomacales (método volumétrico, Laevastu), selectividad (Chesson) y solapamiento trófico (Morisita). Se registraron 14 géneros de zooplancton; Bosmina el más abundante (29 625ind/10L) seguido por Cyclops (9 496ind/10L) ambos en primavera. Los peces pequeños (1-4.9cm) consumen a Cyclops en altos porcentajes en primavera e invierno, 61.24-69.82% respectivamente. Ceriodaphnia es consumida por peces de 3-10.9cm y de 13-14.9cm con 72.41-95.5% en verano; en otoño las tallas pequeñas ingieren a Mastigodiaptomus y Ceriodaphnia; Daphnia y Bosmina por peces de 5-8.9cm y los más grandes (9-14.9cm) a Ceriodaphnia. M. humboldtiana realiza una depredación selectiva por Ceriodaphnia, Daphnia, Mastigodiaptomus, Bosmina y Cyclops. El solapamiento trófico fue muy marcado entre todas las tallas en primavera, otoño e invierno, a diferencia en verano los peces de 1-2.9 y 11-12.9cm no registraron un solapamiento con otros intervalos de longitud. M. humboldtiana es una especie zooplanctófaga, que realiza una depredación selectiva y un marcado solapamiento trófico entre los intervalos de longitud.
Subject(s)
Animals , Food Chain , Feeding Behavior/physiology , Fishes/physiology , Body Size , Fishes/anatomy & histology , Fishes/classification , Gastrointestinal Contents , Mexico , SeasonsABSTRACT
Selectivity of zooplankton and trophic overlap between size Menidia humboldtiana fish (Atheriniformes: Atherinopsidae) in the reservoir Danxhó, Mexico. The Menidia humboldtiana silverside is considered one of the most important species in fisheries in some states of Mexico. Knowing the choice that this species exercises over its food gives us an understanding of the behavior of zooplankton in presence of zooplanktonic fish, and tells us if the silverside choose amongst bigger prey fish, and if there is competition for food between the native and introduced fish in the reservoir. The purpose of this study was to determine if M. humboldtiana selects its food, and in which genera, and to establish whether there was an overlap in the diet of the different sizes of silverside. The fish were catched with a 88 mm mesh net, in six sampling points during one year, from Danxhó (19°5´17" - 53´46" N, 99° 32´42" - 35´40" W) reservoir. Samples of filtered zooplankton were also taken with a 125 micron net. The analysis of stomach contents was carried out in fish grouped by regular size intervals during each season of the year, using the volumetric method and Chessons selectivity coefficient. To evaluate the trophic overlap between the different size groups, the Morisita index, modified by Horn, was used. The zooplankton community was represented by twelve genera: Mastigodiaptomus and Cyclops (Copepoda); Bosmina, Diaphanosoma, Daphnia, Ceriodaphnia, Moina, Alonopsis and Camptocercus, (Cladocera); Asplanchna, Conochillus and Filinia (Rotifera). Mastigodiaptomus was the most abundant throughout the year. The silverside consumed only four genera: Bosmina, Mastigodiaptomus, Daphnia and Ceriodaphnia; the group measuring 5 to 8.9 cm consumed a high percentage of Bosmina, Mastigodiaptomus and Daphnia, and a lesser percentage of Ceriodaphnia. The larger fish (9 to 10.9 cm) consumed only Mastigodiaptomus and Daphnia. In accordance with the selectivity values, the small and medium size silverside selected their prey, with more intensity on the genera Bosmina and Daphnia, while the bigger fish concentrated on Daphnia and Mastigodiaptomus. During spring, the silverside between 3 to 8.9 cm showed overlap in diet; in summer the bigger size group (7-10.9 cm) showed the overlap. In autumm the overlap ocurred in all sizes, and in winter it was shown only in the medium size fish (5-8.9 cm). Rev. Biol. Trop. 57 (1-2): 187-194. Epub 2009 June 30.
El charal Menidia humboldtiana es considerado como una de las especies de gran importancia en la industria pesquera de algunos estados de México. Es necesario conocer el efecto que esta especie ejerce sobre su alimento para saber si seleccionan las presas de mayor talla, si hay competencia por el alimento entre especies nativas e introducidas, y para comprender el comportamiento del zooplancton ante peces zooplanctófagos. Se determinó si M. humboldtiana selecciona su alimento, sobre qué géneros lo hace, y si existe traslape en la dieta entre las diferentes tallas. Los peces se recolectaron por medio de un chinchorro de 88 mm de abertura de malla, en seis estaciones de muestreo durante un año, en el embalse Danxhó, y una muestra de zooplancton fue recolectada por filtrado con una red de 125 µm. El análisis de los contenidos estomacales se realizó en peces agrupados en intervalos de longitud estándar para cada época del año, por medio del método volumétrico. Para evaluar el traslape trófico entre los diferentes intervalos de longitud, se utilizó el índice de Morisita modificado por Horn. El zooplancton estuvo representado por doce géneros: Mastigodiaptomus y Cyclops (Copepoda); Bosmina, Diaphanosoma, Daphnia, Ceriodaphnia, Moina, Alonopsis y Camptocercus (Cladocera); Asplanchna, Conochillus y Filinia (Rotifera). Durante la primavera, los charales de 3-8.9 cm presentaron un marcado traslape, para el verano fueron los grandes (7-10.9 cm), en otoño el traslape fue en todas las tallas, y en invierno solo las tallas intermedias (5-8.9 cm) lo presentaron.