Journal of Animal and Plant Sciences最新文献

{"title":"A DEVELOPMENTAL STUDY OF A SOLAR-ASSISTED MAIZE DRYER FOR QUALITY DRYING","authors":"F. Hussain, M. Ahmad, A. Ghafoor, A. Tanvir","doi":"10.36899/japs.2020.3.0087","DOIUrl":"https://doi.org/10.36899/japs.2020.3.0087","url":null,"abstract":"This study was conducted for the design and development of solar assisted maize dryer to encounter the post-harvest losses. The development and experimental study was carried out in the Department of Farm Machinery and Power, University of Agriculture Faisalabad. The solar maize dryer consisted of a V-groove solar collector having 1.89 m2 collector area, drying chamber having diameter and height of 1.05m and 0.6m respectively. Three air ducts having diameter 0.15m have been provided within the drying chamber for drying homogeneity. In each of the experiments, 100 kg of maize with the initial moisture content of 24% (on average basis) was dried to 14% final moisture content. The average increase in temperature at the collector was 10 to 15 °C more than ambient temperature. Solar assisted maize dryer and open sun drying took 9 hours and 4 days respectively to dry maize up to desired moisture level. The maize samples were evaluated for quality analysis after drying. The percent (%) fats, carbohydrates, proteins and fiber ranged between 3.86-3.89%, 76.86-76.89%, 6.89-6.91% and 7.26-7.29% respectively. The breakeven analysis of the dryer showed that at 970 hours of working total revenue cost equals to the total cost of the dryer.","PeriodicalId":14924,"journal":{"name":"Journal of Animal and Plant Sciences","volume":"1 1","pages":"742-748"},"PeriodicalIF":0.7,"publicationDate":"2020-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"82747341","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"ROOT MORPHOLOGY AND CHEMISTRY IN MANCHURIAN ASH (FRAXINUS MANDSHURICA) AND LARCH (LARIX GMELINII RUPR.) ARE DEPENDENT ON SPECIES, ROOT ORDER AND COMPETITION","authors":"Salahuddin, M. Razaq, A. Khan, M. Haider, Y. Lixue","doi":"10.36899/japs.2020.1.0014","DOIUrl":"https://doi.org/10.36899/japs.2020.1.0014","url":null,"abstract":"Interspecific variation in fine-root morphology and function is well documented. However, very less information is available regarding variation among monoculture and mixed-species plantations in temperate species. Thus, the present study used such plantations to investigate how belowground interand intraspecific competition influence major fineroot traits of larch (Larix gmelinii) and Manchurian ash (Fraxinus mandshurica). Overall root morphology, anatomy, and chemistry differed between species and root order (1–5). Specific root length, nitrogen concentration, and cortex: stele ratio was significantly higher in Manchurian ash, whereas root tissue density, stele diameter, and C/N ratio were significantly higher in larch. Additionally, when comparing the two species in a mixed plantation, root C concentration differed significantly between larch and Manchurian ash, but only for the second root order. However, root traits were largely similar across species within a given root order. In conclusion, critical root traits did not exhibit major intraand interspecific differences, despite the ostensible presence of competition among tested plantations. Therefore, competition-induced root modification may not be a universal phenomenon in temperate trees.","PeriodicalId":14924,"journal":{"name":"Journal of Animal and Plant Sciences","volume":"14 1","pages":"115-125"},"PeriodicalIF":0.7,"publicationDate":"2020-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"90750223","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"HARVEST TIME EFFECT ON QUANTITATIVEANDQUALITATIVE PARAMETERS OF FORAGE MAIZE","authors":"Violeta Mandić, Z. Bijelić, V. Krnjaja, S. Đorđević, M. Brankov, N. Micic, A. Stanojković","doi":"10.36899/japs.2021.1.0198","DOIUrl":"https://doi.org/10.36899/japs.2021.1.0198","url":null,"abstract":"Maize silage is source of palatable and high-energy forage for ruminants. Therefore, production of high quality forage maize represents an essential strategy for stable production of milk and meat on livestock farms. This study examined the effect of harvest date (early dent, at half milk line, at three quarters milk line and black layer) on the quantitative and qualitative parameters of whole maize plant under contrasting climatic conditions in the Srem Serbia. A 2 × 4 factorial (two years and the four cutting times) randomized blocks design was used, with three replications. The plant height, stem diameter, number of leaves per plant, forage yield, dry matter yield and dry matter content were higher in 2014 probably due to favorable weather conditions. With the delay of the harvest the forage yield, crude protein content, acid detergent fiber (ADF) and neutral detergent fiber (NDF) decreased, and dry matter yield, dry matter content and ear percentage increased. Sufficiently high dry matter content and ear percentage were achieved at the third harvest. However, the delay of harvested time reduces the quality parameters of the biomass, but this loss in the entire plant is moderated by grain filling.","PeriodicalId":14924,"journal":{"name":"Journal of Animal and Plant Sciences","volume":"s3-15 1","pages":"103-107"},"PeriodicalIF":0.7,"publicationDate":"2020-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"90808496","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"POLYPHENOLS AS AN ANTIOXIDANT AGENT IMPROVES CHICKEN SPERM QUALITIES DURING COLD STORAGE","authors":"M. Gopi, P. Beulah, G. Prabakar, J. Mohan","doi":"10.36899/japs.2020.6.0186","DOIUrl":"https://doi.org/10.36899/japs.2020.6.0186","url":null,"abstract":"An in vitro study was carried out to assess the addition of polyphenols in the chicken seminal plasma on sperm quality and antioxidant status at different storage periods. Twenty healthy breeding roosters of White Leghorn chicken having similar body weight were randomly selected. The polyphenols in the pomegranate peels were extracted using methanol as a solvent. Samples were split equally into three portions for inclusion of different concentrations of 0, 50 and 100 ppm of polyphenols, respectively. Estimation of catalase, inhibition of lipid peroxidation, reduced glutathione and superoxide dismutase was done at 0, 24 and 48 h intervals. The sperm motility invariably increased in all treatment groups (50, 100 ppm) than control in both storage conditions. Other physical attributes such as sperm concentration, live and dead spermatozoa did not differ over control regardless of concentrations and time periods of storage. Inhibition of lipid peroxide action was found significant at the end of 48 h of storage in both the polyphenol treatment groups than control, while there was no change at 0 and 24 h. Polyphenols from pomegranate peels improved spermatozoal motility and antioxidant activity in seminal plasma and it could be concluded that the polyphenols has capability to protect the spermatozoa against oxidative damage.","PeriodicalId":14924,"journal":{"name":"Journal of Animal and Plant Sciences","volume":"54 1","pages":"1653-1658"},"PeriodicalIF":0.7,"publicationDate":"2020-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"79906149","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Analyse des pratiques d’hygiène et de fabrication et évaluation de la qualité du Mashanza dans 12 unités de production au Sud-Kivu","authors":"Cirhuza Matabaro, Busime Munamire, Walangululu Jean, Sumbu Zola, Birali Mwamini","doi":"10.35759/janmplsci.v42-3.4","DOIUrl":"https://doi.org/10.35759/janmplsci.v42-3.4","url":null,"abstract":"Mashanza is a traditional fresh cheese produced in eastern DRC, particularly in South Kivu. Unfortunately, its production has remained artisanal, despite its commercial importance and practices differ from one place to another. The purpose of this study is to diagnose the health status and manufacturing practices of this product. 12 manufacturing units located in the Kabare, Kalehe, Uvira and Walungu territories were used as subjects of study. The 5M method classified the various factors that may contribute to the depreciation of the quality of the Mashanza. The results showed that the majority of manufacturing units are of the artisanal type and are not compliant in terms of facilities and sanitation. The equipment used is rudimentary. The staff is poorly educated and has not been trained in good manufacturing and hygiene practices. The results of the physicochemical analysis of the products show values between 31.1% and 48.8% for the dry matter, 3.5 and 3.9 for the pH, of 0.87 and 0.95 for Aw and 41.5 and 100.8 ° D for acidity, reflecting, among other things, the influence of process variability on Mashanza quality. The microbiological analysis reveals a total mesophilic aerobic flora varying between 4 and 8 × 10 2 cfu / ml for whey and 0 and 9.8 × 10 2 cfu / g for Mashanza. The whey accuses the presence of coliforms: E. coli, S.aureus, anaerobic sulphite-reducing germs, yeasts and moulds. Their enumeration shows values ranging between 0 and 1.4 × 10 2 cfu / g for total coliforms, 0 and 36 cfu / g for faecal coliforms, 0 and 1.6 × 10 2 cfu / g for E. coli; 0 and 1.2.103, cfu / ml for the sulphitoreducing anaerobes and between 0 and 1.5.103. ufc / g for yeasts and moulds. Salmonella sp. is absent from all whey and Mashanza samples. In general, Mashanza is satisfactory. The results obtained make it possible to guide producers and researchers on the factors that can degrade the quality of Mashanza and that can be acted on.","PeriodicalId":14924,"journal":{"name":"Journal of Animal and Plant Sciences","volume":"35 1","pages":"7314-7329"},"PeriodicalIF":0.7,"publicationDate":"2019-12-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"73303918","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Demande en bois-énergie et rentabilité économique de la préparation de la bière locale et\u0000du beurre de karité au Burkina Faso","authors":"T. Patrice, Lamien Niéyidouba, Coulibaly, L. Pascaline, Dao Alassane","doi":"10.35759/janmplsci.v42-3.3","DOIUrl":"https://doi.org/10.35759/janmplsci.v42-3.3","url":null,"abstract":"Energy is a key factor in the preparation of the local beer (BL) and shea butter (BK) in Burkina Faso. Given the limited purchasing power, rural households, which have a low access rate to modern energy, generally rely on wood energy to meet their energy needs. Dao et al., 2019 Journal of Animal & Plant Sciences (J.Anim.Plant Sci. ISSN 2071-7024) Vol.42 (3): 7303-7313. https://doi.org/10.35759/JAnmPlSci.v42-3.3 7304 Like other African countries, Burkina Faso is now facing the phenomenon of population growth, which is constantly increasing the demand for wood energy. This inevitably leads to increased degradation of the forest resources that provide energy woods. This study was undertaken to measure the demand for wood energy from two major women's activities: the preparation of the local beer (BL) and shea butter (BK) and their economic profitability in Burkina Faso. The method consisted in quantifying the wood used to cook the local beer (BL) and the shea better (BK) and interviewing women who produce these commodities on the economic profitability of their commercial activities. The interview concerned 92 women, i.e. 30% (48 local beer preparers and 45 shea butter preparers. Wood quantification through follow up was carried out with 12 women producers of local beer (BL) and 12 of shea butter (BK) in 4 villages in Burkina Faso. Analysis of the results reveals that these women's commercial activities required 1.49 kg of wood per litre of prepared local beer (BL) and 4.5 kg of wood per kilogram of prepared shea butter. The average net income from the sale of BL is 11,408 ± 1,240 CFAF (22.81 ±2.48 USD) per unit of cooking while the average net income from the sale of shea butter is 2,682 ± 581 CFAF per unit (5.36 ± 1.16 USD) of cooking. It is concluded that both economic activities result in positive net income that reflects a financial return for the women who add to them. 2 INTRODUCTION Dans les pays sahéliens comme le Burkina Faso, les ressources ligneuses constituent la principale source énergétique. Plusieurs auteurs lient le phénomène de déforestation dans ces pays à la consommation du bois de chauffe comme énergie (Ozer, 2004, Maty 2000). Les formations forestières fournissent l’essentiel des besoins énergétiques des populations. Au Burkina Faso, les populations utilisent couramment le bois des forêts naturelles comme source d’énergie pour les besoins de cuisson. Krämer (2012) rapporte que plus de 90 % du bois utilisé sert au chauffage dans les ménages ruraux et près de 250 000 hectares de forêts sont défrichés annuellement pour satisfaire les besoins en bois de chauffe (Ozer, 2004). Avec l’accroissement de la population, Traoré et al. (2010) signalent qu’on devrait s’attendre à une crise du bois-énergie dans un proche avenir. Cela est d’autant imminent que la consommation des ménages en bois-énergie dépasse l’accroissement annuel en biomasse ligneuse (Krämer, 2012) et que seulement 4,8 % des ménages utilisent le gaz butane et l’énergie sola","PeriodicalId":14924,"journal":{"name":"Journal of Animal and Plant Sciences","volume":"6 1","pages":"7303-7313"},"PeriodicalIF":0.7,"publicationDate":"2019-12-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"79374533","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Collecte, tri et caractérisation des accessions de maïs (Zea mays L.) de décrue cultivées au niveau de la haute et moyenne vallée du fleuve Sénégal (cas de la Mauritanie)","authors":"I. Traore, Nianguiri Moussa Konaté, E. Faye, H. Gueye, Hamidou Dieng","doi":"10.35759/janmplsci.v42-3.5","DOIUrl":"https://doi.org/10.35759/janmplsci.v42-3.5","url":null,"abstract":"The objective of this study was to collect, sort and study the phenotypic diversity of flood recession maize accessions based on a few selected variables, among the maize descriptors. One hundred and sixty-two (162) flood recession maize accessions collected in the high and medium valley of the Senegal River were thus sorted and evaluated morphologically.Among these 162 accessions, 64.81% are collected in the upper valley and 35.18% in the middle valley. Based on three morphological characteristics of the maize (grain colors, texture and Traoré et al., 2019 Journal of Animal & Plant Sciences (J.Anim.Plant Sci. ISSN 2071-7024) Vol.42 (3): 7330-7339. https://doi.org/10.35759/JAnmPlSci.v42-3.5 7331 color of the stalk), the sorting of this collection showed a great variability in morphotypes (15), with the dominance of the morphotype Yellow-Corné-Blanc (JCB) in the collection with a strength (85/162). The morphotypes found to bevery rare do not exceed the number 1 in the collection. Characterization on the ears of these morphotypes according to some characteristics (weight of the ear and the weight of 100 g, length of the ear), related to the yield showed a very important phenotypic diversity. In fact, the weight of the ear varies from 63.03 g for short-eared morphotypes to 290 g for coarse-cut morphotypes as well as for spike length ranging from 10.5 cm to 26 cm. This diversity offers a great opportunity for brood stock selection for the creation of improved maize varieties with high yield potential and adapted to different agro-ecological zones of the Senegal River Valley. 2 INTRODUCTION Le maïs (Zea mays L.) est une graminée céréalière importante pour beaucoup de pays, surtout pour sa production mondiale 839 millions de tonnes en 2013 contre 653 millions pour le blé (Kahndo et al., 2015). En Afrique de l’ouest et du centre, le maïs représente un peu plus de 20% de la production alimentaire (Rouanet, 1984) et sa production est estimée à 18,5 million de tonnes (Boua et al., 2016). En Mauritanie, le maïs a longtemps occupé une place de choix parmi d’autres céréales, bien que sa production nationale reste encore faible (2979 tonnes pour une superficie 3943 ha, soit 0,75 t.ha (DSIA/MDR, 2018). La culture du maïs, surtout de décrue, occupe une part importante de l’activité agricole des agriculteurs de la rive droite du fleuve Sénégal. Cette production est utilisée sous différentes formes : maïs grillé, couscous, bouillies de maïs et aussi comme fourrage pour le bétail. Pour faire face à l’instabilité du climat, surtout la rareté et la fluctuation des pluies le plus souvent déficitaires, les producteurs de la rive droite du fleuve Sénégal, utilisent plusieurs techniques culturales traditionnelles, transmises de génération en génération axées surtout sur l’utilisation des écotypes locaux pour garantir une production certes faible, mais sécurisée. Il existe ainsi, plusieurs formes traditionnelles locales de maïs de décrue, mal connues des sélectionneurs mo","PeriodicalId":14924,"journal":{"name":"Journal of Animal and Plant Sciences","volume":"10 1","pages":"7330-7339"},"PeriodicalIF":0.7,"publicationDate":"2019-12-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"75549690","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Study of genetic diversity in Tunisian local cattle populations using ISSR markers","authors":"H. E. Hentati, N. Thamri, W. Derouich, M. Hadhli, Taoufik Boukhorsa","doi":"10.35759/janmplsci.v42-3.2","DOIUrl":"https://doi.org/10.35759/janmplsci.v42-3.2","url":null,"abstract":"Haifa EL HENTATI1*, Najia THAMRI2, Wissal DEROUICH1, Mouna HADHLI3, Taoufik BOUKHORSA4 National Gene Bank of Tunisia, Boulevard of the leader Yasser Arafat, Charguia (1) 1080 Tunis, Ministry of Local Affairs and Environment, Tunisia 2 Directorate of Genetic Improvement of Sidi Thabet, Office of Livestock and Pasture, 2020, Ariana, Tunisia Regional Directorate of the Office of Livestock and Pasture of Mateur, Av. Habib Bourguiba, 7030, Mateur, Bizerte, Tunisia Regional Direction of the Livestock and Pasture Office of Jendouba, Av. 9 Avril, B.P. 276, 8100, Jendouba, Tunisia *Corresponding author: Dr Haifa El-Hentati, National Gene Bank of Tunisia, Boulevard of the leader Yasser Arafat, Charguia 11080 Tunis, Tunisia E-mail: haifa_eh@yahoo.fr","PeriodicalId":14924,"journal":{"name":"Journal of Animal and Plant Sciences","volume":"100 1","pages":"7296-7302"},"PeriodicalIF":0.7,"publicationDate":"2019-12-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"74818737","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Aperçu de quelques paramètres qualitatives dans la caractérisation morpho-biométrique des poules locales (Gallus gallus) ou ‘Batéké’ dans les périphéries Nord et Sud de Brazzaville en République du Congo.","authors":"Hery Jolivet Saya Ngouonimba, O. Itoua, M. Paul, Akouango Parisse","doi":"10.35759/janmplsci.v42-2.1","DOIUrl":"https://doi.org/10.35759/janmplsci.v42-2.1","url":null,"abstract":"Cette étude portant sur l’aperçu de quelques paramètres qualitatives dans la caractérisation morpho-biométrique des poules locales (Gallus gallus) ou Batéké dans les périphéries Nord et Sud de Brazzaville avait pour but d’apprécier quelques aspects qualitatifs indispensables dans la caractérisation de ces poules dans les deux périphéries a été réalisée dans les périphéries nord et sud de Brazzaville comprenant respectivement les arrondissements 9 Djiri et 8 Madibou, s’est déroulée dans neuf (9) quartiers au total. A L’issu de cette étude, 929 poulet ont été échantillonnés dont 583 femelles et 346 mâles. Des enquêtes menées ont révélées que 651 poulet (70%) ont une crête simple contre 278(30%) une crête double ; la couleur dominante de la crête est rouge, 922 poulet (99%) contre 9 poulet (1%) de crête rose pâle. 222 poulet (24%), ont un bec jaune, 209 (22%), ont un bec blanc, 154(17%), ont un bec noir, 140(15%), ont un bec corne, 131(14%), ont un bec marron et 73(8%) un bec crème. Les barbillons sont majoritairement de forme ovale 922, soit (99%) contre 7(1%) de forme ronde ; la couleur dominante est le rouge à 100%. Les yeux sont orange clair, 350 poulet (37%), orange foncé, 200 (22%), noir, 150 (16%), yeux bruns 129, (14%), yeux brun foncé, 100 (11%). 378 poulet (41%), ont des tarses blancs, 340 (37%) ont des tarses jaunes, 86 (9%), ont des tarses gris, 78 (8%), ont des tarses pigmenté jaune et 37 (4%)pigmenté noir. La distribution de la couleur a révélé que les phénotypes les plus nombreux sont : blanc (65 poulet soit 7%), fauve uni (61 poulet soit 7%), blanc tacheté (60 poulet soit 6%) ; blanc herminé (60 soit 6%), fauve à queue noir (51 poulet soit 5%). La coloration du plumage est très variable, avec une fréquence élevée des couleurs blanc, fauve uni, blanc tâcheté et blanc herminé. Cette étude fait partie d’une série de travaux en cours de traitement sur les autres aspects qualitatifs et quantitatifs chez cette poule locale. Ngouonimba et al., 2019 Journal of Animal & Plant Sciences (J.Anim.Plant Sci. ISSN 2071-7024) Vol.42 (2): 7175-7197. https://doi.org/10.35759/JAnmPlSci.v42-2.1 7176 SUMMARY This study was focusing on the overvien of some qualitative parameters in the morphobiometrics characterization of local hens (Gallus gallus) in the North and South outskirts of Brazzaville was intended to appreciate some qualitative aspects essential in characterization of these hens in both peripheries has been carried out in the North and South outskirts of Brazzaville, comprising the districts 9 Djiri and 8 Madibou, respectively, in nine (9) quarters in total. At the outcome of this study, 929 chicken were sampled including 583 females and 346 males. Surveys conducted revealed that 651 chicken (70%) have a single Crest against 278 (30%) a double Ridge; the dominant color of the crest is red, 922 chicken (99%) against 9 chicken (1%) of pale pink crest. Also 222 chicken (24%), have a yellow beak, 209 (22%), have a white beak, 154 (17%), have a Blac","PeriodicalId":14924,"journal":{"name":"Journal of Animal and Plant Sciences","volume":"25 1","pages":"7175-7197"},"PeriodicalIF":0.7,"publicationDate":"2019-11-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"75491787","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Risk-sensitive foraging strategy of flower visitors in Serjania caracasana","authors":"Ana Paula Jejesky de Oliveira, Juliétty Angioletti Tesch, Giuliano de Matin, Fernanda Pavesi Tanure, João Luiz Rossi Junior, Ary Gomes da Silva","doi":"10.35759/janmplsci.v42-2.6","DOIUrl":"https://doi.org/10.35759/janmplsci.v42-2.6","url":null,"abstract":"Production of nectar can play a fundamental role in the foraging behaviour of floral visitors through its availability and distribution. The aim of this study was to understand the foraging pattern of floral visitors in Serjania caracasana. The field study observed the strategy of nectar production and the foraging behaviour of the floral visitors of Serjania caracasana, carried out through an experiment that evaluated the amount of nectar produced by flowers, species richness and frequency of visits. The data analysis showed that there is no significant correlation between any of the variables analysed. The unstable nectar between the flowers and the unpredictability during the hours of the day suggest a risk-foraging strategy of risk-prone type of the species of floral visitors. The data from this study suggests that Serjania caracasana has potential to understand the theory of risk-sensitive foraging in relation to its reproductive success.","PeriodicalId":14924,"journal":{"name":"Journal of Animal and Plant Sciences","volume":"6 1","pages":"7245-7255"},"PeriodicalIF":0.7,"publicationDate":"2019-11-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"78422768","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}