Cu-ID: https://cu-id.com/1996/v58e20 Redirecciones: 1 URL: https://cjascience.com/index.php/CJAS/article/view/1161 OAI: https://cjascience.com/index.php/CJAS/oai?verb=GetRecord&metadataPrefix=oai_dc&identifier=oai:ojs.pkp.sfu.ca:article/1161 BibTeX: @article{Entomofauna_associated_with_a_silvopastoral_system_of_Tithonia_diversifolia_cv._ICA_Cuba_oc-10,_intended_for_bull_fattening, title = {Entomofauna associated with a silvopastoral system of Tithonia diversifolia cv. ICA Cuba oc-10, intended for bull fattening}, author = {Valenciaga, Nurys and Iraola, J. and Herrera, Magaly and Ruiz, T. E.}, journal = {Cuban Journal of Agricultural Science}, volume = {58}, number = {}, pages = {https://cu-id.com/1996/v58e20}, year = {2024-12-30}, publisher = {Instituto de Ciencia Animal}, language = {eng}, url = {https://cu-id.com/1996/v58e20}, cu_id = {https://cu-id.com/1996/v58e20}, abstract = {To evaluate the entomofauna associated with a silvopastoral system (SSP) of tithonia and improved and natural grasses, intended for bull fattening, an experiment was conducted for four years. A sample of 20 raids was taken during three climatic moments (January, May and September), with the use of the entomological net for each plant component. Results showed the superiority of Insecta class. An amount of 14 orders, 37 families and 76 morphospecies were collected. Out of them, 38 phytophages, 13 visitors, 22 bioregulators, 2 hematophages and 1 omnivore. The most common phytophages were the leafhoppers: Empoasca sp., Hortensia similis, Draeculacephala cubana and a complex of chrysomelids of Epitrix, Diabrotica, Colaspis, Diachus, Typophorus, Cryptocephalus, Oedionychus and Anysostena genera, which provoke their damage with greater emphasis on base grass and on the control area. However, they only reached the category of frequent. The rest were included in the category of infrequent (<10). September was the most representative month of the associated entomofauna. It is concluded that the study of the entomofauna in the evaluated areas confirms the function of the tree component in the agroecosystem. Regarding the SSP with tithonia and base grass, it is demonstrated that the system manages to maintain phytophagous, visitor and bioregulatory species in biological balance, without causing economic damage to the associated plant components. Therefore, it is recommended to maintain phytosanitary surveillance in these areas, by promoting increasingly diverse systems, in order to contribute to the comprehensive management of the agroecosystem.}, }
Cu-ID: https://cu-id.com/1996/v58e21 Redirecciones: 1 URL: https://cjascience.com/index.php/CJAS/article/view/1156 OAI: https://cjascience.com/index.php/CJAS/oai?verb=GetRecord&metadataPrefix=oai_dc&identifier=oai:ojs.pkp.sfu.ca:article/1156 BibTeX: @article{Effect_of_crude_glycerol_from_Jatropha_curcas_L._oil_on_the_production_and_quality_of_cattle_milk, title = {Effect of crude glycerol from Jatropha curcas L. oil on the production and quality of cattle milk}, author = {Bonis Neyra, Rebeca and Valenciaga Gutiérrez, Daiky and Sotolongo Pérez, J. Á. and García López, R. and Ortiz Milan, A. and Galindo Blanco, Juana L.}, journal = {Cuban Journal of Agricultural Science}, volume = {58}, number = {}, pages = {https://cu-id.com/1996/v58e21}, year = {2024-04-30}, publisher = {Instituto de Ciencia Animal}, language = {eng}, url = {https://cu-id.com/1996/v58e21}, cu_id = {https://cu-id.com/1996/v58e21}, abstract = {To evaluate the effect of crude glycerol from Jatropha curcas L. oil on the production and quality of cattle milk, a total of 30 multiparous cows from Siboney de Cuba breed were used, with an average pre-parturition body condition of 3.04 and an average pre-parturition live weight of 487.87 kg. The animals had an average number of lactations of 3.17 and between seven and 21 days after the start of milking. A completely random design with two treatments and 15 repetitions was applied. Each animal was considered a repetition. The treatments were: control) 1 kg of wheat bran during milking, without glycerol; treatment 2) 1 kg of wheat bran during milking + 200 mL of glycerol during the first 15 days, dose which was increased to 400 mL during the last 45 days of the trial). The animals grazed in areas of pitilla (Sporobolus indicus L.) with permanent access to water. The glycerol under study was characterized by a density of 1.02 g/mL, methanol content of 2.6 %, ignition point above 65 0C and pH of 8.74. It showed a dark brown color and sweet taste. These indicators are in accordance with the quality specification properties of crude glycerol, established by international standards. The average milk production/cow/day was higher (P=0.0001) in the treatment with the glycerol additive (3.43 vs. 2.20 L for the control), as well as the total milk production (P=0.0159). It is concluded that crude glycerol, obtained in the transesterification process of J. curcas oil, has physicochemical and organoleptic properties that make it suitable for their use in animal feeding as an additive. Its use increased milk production in Siboney Cuba cows without affecting quality indicators. Its application under production conditions and the development of new studies in other categories and species of animals are recommended.}, }
Cu-ID: https://cu-id.com/m/1996/v58e22 Redirecciones: 0 URL: https://cjascience.com/index.php/CJAS/article/view/1157 OAI: https://cjascience.com/index.php/CJAS/oai?verb=GetRecord&metadataPrefix=oai_dc&identifier=oai:ojs.pkp.sfu.ca:article/1157 BibTeX: @article{Role_of_beneficial_fauna,_associated_to_a_silvopastoral_system_of_Tithonia_diversifolia_cv._ICA_Cuba_oc-10,_on_the_incidence_of_pest_insects, title = {Role of beneficial fauna, associated to a silvopastoral system of Tithonia diversifolia cv. ICA Cuba oc-10, on the incidence of pest insects}, author = {Valenciaga, Nurys and Iraola, J. and Herrera, Magaly and E. Ruiz, T.}, journal = {Cuban Journal of Agricultural Science}, volume = {58}, number = {}, pages = {https://cu-id.com/1996/v58e22}, year = {2024-07-30}, publisher = {Instituto de Ciencia Animal}, language = {eng}, url = {https://cu-id.com/m/1996/v58e22}, cu_id = {https://cu-id.com/m/1996/v58e22}, abstract = {To evaluate the beneficial fauna associated with a silvopastoral system of Tithonia diversifolia cv. ICA CUBA Oc-10, together with natural and improved grasses, and to determine their role in the incidence of insect pests, periodic random samplings were carried out (January, May and September). A sample of 20 raids was taken for each plant component. There was a lower proportion of phytophagous insects associated with the silvopastoral system with tithonia (9.97) compared to the base grass (19.13) and the control area (20.14) and, in turn, a higher proportion of bioregulators, with higher values in tithonia (9.63) in contrast to the base grass (5.94) and control (3.84). Over time, phytophagous insects decreased significantly in the silvopastoral system with tithonia (3.70), with differences in base grass (9.18) and control area (12.52). Bioregulators remained stable in the beneficial fauna associated with tithonia (9.81), although without statistical differences among the rest of plant communities. It is concluded that there is a marked influx of bioregulatory organisms associated with the silvopastoral system with tithonia and base grass compared to the control area, with grasses only. An increase or stability was achieved with the years of exploitation of the system. This is a favorable indicator, which increases zoological and functional biodiversity, contributes to the integral management of insect pests and guarantees the sustainability of the agroecosystem. It is recommended to promote increasingly diversified areas, such as silvopastoral systems, and avoid the extension of monoculture areas to favor the balance between phytophagous and bioregulatory species, under non-harmful levels.}, }
Cu-ID: https://cu-id.com/1996/v58e23 Redirecciones: 2 URL: https://cjascience.com/index.php/CJAS/article/view/1158 OAI: https://cjascience.com/index.php/CJAS/oai?verb=GetRecord&metadataPrefix=oai_dc&identifier=oai:ojs.pkp.sfu.ca:article/1158 BibTeX: @article{Growth_model_in_crossbred_dairy_calves_on_grazing_with_protein-energy-mineral_supplementation, title = {Growth model in crossbred dairy calves on grazing with protein-energy-mineral supplementation}, author = {Viamonte Garcés, María I. and Acosta Iglesias, D. and Calva Moreno, F.A. and Naula Campoverde, D.J.}, journal = {Cuban Journal of Agricultural Science}, volume = {58}, number = {}, pages = {https://cu-id.com/1996/v58e23}, year = {2024-09-01}, publisher = {Instituto de Ciencia Animal}, language = {eng}, url = {https://cu-id.com/1996/v58e23}, cu_id = {https://cu-id.com/1996/v58e23}, abstract = {The research was conducted from March to May 2020 to develop functions to estimate growth and increase in live weight and average daily gain in dairy cattle in pre-fattening stage, in rotational grazing, with grasses association and protein-energy-mineral supplementation. Information was taken from the botanical composition in percentage, fresh and dry matter in a hectare divided into four equal plots, the chemical composition of the grasses association and the cattle stocking rates capacity of the system, live weights and weight gains in the animals. From this information, functions were developed to estimate growth and increase in live weight and average daily gain in crossbred dairy calves until their future productive performance. The grazing area consisted of 51.51 % plant biomass of ratana grass (Ischaemum indicum) and 20.74 % forage peanut (Arachis pintoi). The quality of the grasses association with the highest contributions of crude protein was in forage peanut and ratana (20.75 and 23.44 %, respectively). The average gross energy contributions were 1023.9 kJ/kgDM, with the best values for forage peanut (1107.24 kJ/kgDM). The total grass yield was 3488.50 kg/ha. The prediction of future productive performance in fattening was influenced by weight increases in the first three months of age of the calves, regardless of birth weight. These changes in the growth curve are due to the diet with energy-protein-mineral supplementation.}, }
Cu-ID: https://cu-id.com/1996/v58e24 Redirecciones: 2 URL: https://cjascience.com/index.php/CJAS/article/view/1159 OAI: https://cjascience.com/index.php/CJAS/oai?verb=GetRecord&metadataPrefix=oai_dc&identifier=oai:ojs.pkp.sfu.ca:article/1159 BibTeX: @article{Diagnosticar:_computer_system_for_the_productive_diagnosis_of_cattle_fattening_units, title = {Diagnosticar: computer system for the productive diagnosis of cattle fattening units}, author = {Mejías Caba, A. and Iraola Jerez, J. and Medina Mesa, Yolaine}, journal = {Cuban Journal of Agricultural Science}, volume = {58}, number = {}, pages = {https://cu-id.com/1996/v58e24}, year = {2024-07-30}, publisher = {Instituto de Ciencia Animal}, language = {eng}, url = {https://cu-id.com/1996/v58e24}, cu_id = {https://cu-id.com/1996/v58e24}, abstract = {A computer tool was developed for the diagnosis of fattening livestock activity based on productive efficiency indicators as an alternative for the analysis of management strategies in each scenario. The program was created in NetBeans development environment, version 8.2, and was implemented with Java programming language. It was designed with an architecture divided into layers, the service interface and the data access. The program has a pleasant visual appearance and has two functions: administrator and user. The computer application allows the livestock user to know the efficiency degree with which the production unit works, through the stock efficiency field and to make an opinion about the productive indicators in a given period. By considering these fields and their results, strategies can be drawn up to bring the livestock unit to acceptable production levels.}, }
Cu-ID: https://cu-id.com/1996/v58e25 Redirecciones: 1 URL: https://cjascience.com/index.php/CJAS/article/view/1160 OAI: https://cjascience.com/index.php/CJAS/oai?verb=GetRecord&metadataPrefix=oai_dc&identifier=oai:ojs.pkp.sfu.ca:article/1160 BibTeX: @article{Evaluation_of_live_weight_and_height_in_draft_horses_(Equus_caballus)_and_their_relation_with_animal_welfare, title = {Evaluation of live weight and height in draft horses (Equus caballus) and their relation with animal welfare}, author = {Hernández Lemus, Susan K. and Herrera Villafranca, Magaly and Martínez-Pérez, Madeleidy}, journal = {Cuban Journal of Agricultural Science}, volume = {58}, number = {}, pages = {https://cu-id.com/1996/v58e25}, year = {2024-09-03}, publisher = {Instituto de Ciencia Animal}, language = {eng}, url = {https://cu-id.com/1996/v58e25}, cu_id = {https://cu-id.com/1996/v58e25}, abstract = {A total of 120 horse- drawn cart were randomly selected in San José de las Lajas municipality, Mayabeque, Cuba, to evaluate height and live weight, as well as the relation of these indicators with animal welfare. A tape measure was used to measure the height, chest circumference and length from the ischial tuberosity to the tip of the horses shoulder. The data from these last two indicators were used to calculate the thoracic circumference of each animal. The results obtained from the height and live weight were subjected to statistical analysis and compared with the parameters recommended for carrying out heavy work such as horse-drawn vehicles. Of the sampled horses, 33.33 % showed heights below the required 140 cm. More than 55 % of the animals did not fulfill with the established 500 kg body weight. The questionnaires performed to the owners revealed that of the 37 horses in the development stage, aged between one and five years, six were below the three years required for working tasks, and there is no control over the kilograms of load they can drawn, according to their biometric parameters. It was concluded that the biometric parameters in the horses-drawn evaluated were not fulfill by a significant amount, which is detrimental to their welfare.}, }
Cu-ID: https://cu-id.com/1996/v58e26 Redirecciones: 1 URL: https://cjascience.com/index.php/CJAS/article/view/1162 OAI: https://cjascience.com/index.php/CJAS/oai?verb=GetRecord&metadataPrefix=oai_dc&identifier=oai:ojs.pkp.sfu.ca:article/1162 BibTeX: @article{Determination_of_fructans_in_vegetative_organs_of_Agave_Offoyana_(Asparagaceae)_and_its_potential_use_as_a_prebiotic, title = {Determination of fructans in vegetative organs of Agave Offoyana (Asparagaceae) and its potential use as a prebiotic}, author = {Hernández Montesinos, A.R. and Alfonso González, D. and Coronado Acosta, Dayanna and Reyes Fernández, R. and Rodríguez Alfonso, Daymara}, journal = {Cuban Journal of Agricultural Science}, volume = {58}, number = {}, pages = {https://cu-id.com/1996/v58e26}, year = {2024-12-30}, publisher = {Instituto de Ciencia Animal}, language = {eng}, url = {https://cu-id.com/1996/v58e26}, cu_id = {https://cu-id.com/1996/v58e26}, abstract = {Fructans are carbohydrates in which the links between fructose residues predominate. They are synthesized in approximately 15 % of angiosperms. These molecules have various applications in food and health, due to the lack of digestibility and their selective use by the beneficial intestinal microbiota in monogastric animals. The objective of this study was to determine, using chromatographic methods, the presence of fructans in vegetative organs of the endemic species Agave offoyana (maguey). Plants were collected in three different physiological states during two climatic periods. They were taken from the managed floristic reserve Tres Ceibas de Clavellina, in Matanzas province, Cuba. Samples were analyzed by different chromatographic methods. Thin layer chromatography showed the presence of fructans in stems and leaves, but not in roots. The accumulation was greater in stems. Both organs contain from the trisaccharide to molecules with a high degree of polymerization. The presence of the polysaccharide was greater in the leaves at the base than in the middle and shoot apex. There was an increase in the accumulation of fructans in the organ samples collected during the dry season. High-performance liquid chromatography confirmed the presence of fructooligosaccharides extracted from the stem. Results showed that Agave offoyana accumulates fructans in the stem, although they are also present in leaves. This Cuban species can be used to obtain fructans for human and animal feeding and health.}, }
Cu-ID: https://cu-id.com/1996/v58e27 Redirecciones: 1 URL: https://cjascience.com/index.php/CJAS/article/view/1166 OAI: https://cjascience.com/index.php/CJAS/oai?verb=GetRecord&metadataPrefix=oai_dc&identifier=oai:ojs.pkp.sfu.ca:article/1166 BibTeX: @article{Hormonal_profile_and_follicular_dynamics_of_two_breeds_of_old_laying_hens_on_melatonin_administration_in_Nigeria, title = {Hormonal profile and follicular dynamics of two breeds of old laying hens on melatonin administration in Nigeria}, author = {Ozioma Igwe, Rosemary and Herbert, Udo and T. Ogunnupebi, Jude and Ikechukwu Osakwe, Isaac}, journal = {Cuban Journal of Agricultural Science}, volume = {58}, number = {}, pages = {https://cu-id.com/1996/v58e27}, year = {2024-12-30}, publisher = {Instituto de Ciencia Animal}, language = {eng}, url = {https://cu-id.com/1996/v58e27}, cu_id = {https://cu-id.com/1996/v58e27}, abstract = {In a 20-week study, 117 laying hens, aged 52 weeks, of the Isa Brown and Nera Black breeds were used to evaluate the effects of melatonin on reproductive hormones and egg production. The study utilized a 2×3 factorial, a completely randomized block design with three treatments (0 mg, 5 mg, and 10 mg of melatonin) and three replicates, administered daily through drinking water. A total of 39 samples of blood were collected and analyzed. Melatonin at 5 mg (T2) significantly improved levels of follicle-stimulating hormone (FSH) and luteinizing hormone (LH) in Isa Brown hens, with concentrations of 629.14 pg/mL and 55.48 mIU/mL, respectively. However, higher melatonin levels at 10 mg (T3) led to reduced hormone levels (279.40 pg/mL and 39.64 mIU/mL). A similar trend was observed in Nera Black hens. Hen day egg production (HDEP) also improved with melatonin treatment, with the 5 mg dosage (T2) yielding the highest production rates for both breeds. Specifically, Isa Brown hens showed HDEP percentages of 39.11 % (T1), 86.33 % (T2), and 61.66 % (T3), while Nera Black hens had HDEP percentages of 31.10 % (T1), 70.86 % (T2) and 58.60 % (T3). In conclusion, melatonin at 5 mg improved the reproductive hormonal profile, promoted follicle development and growth the latter will increase egg production in the two breeds, preferentially in the Nera black breed.}, }
Cu-ID: https://cu-id.com/1996/v58e28 Redirecciones: 1 URL: https://cjascience.com/index.php/CJAS/article/view/1168 OAI: https://cjascience.com/index.php/CJAS/oai?verb=GetRecord&metadataPrefix=oai_dc&identifier=oai:ojs.pkp.sfu.ca:article/1168 BibTeX: @article{Tithonia_diversifolia_forage_meal:_effect_on_physiological_indicators_and_blood_biochemistry_of_two_poultry_categories, title = {Tithonia diversifolia forage meal: effect on physiological indicators and blood biochemistry of two poultry categories}, author = {Savón, Lourdes and Rodríguez, Bárbara and Scull, Idania and Vázquez, Ysnagmy and Herrera, Magaly and Ruiz, T.E.}, journal = {Cuban Journal of Agricultural Science}, volume = {58}, number = {}, pages = {https://cu-id.com/1996/v58e28}, year = {2024-07-25}, publisher = {Instituto de Ciencia Animal}, language = {eng}, url = {https://cu-id.com/1996/v58e28}, cu_id = {https://cu-id.com/1996/v58e28}, abstract = {The use and research of plant resources that are abundant in the tropic have great importance for the monogastric species feeding, above all the poultry due to the poor production of cereals and to the financial limitations for their acquisition. Tithonia diversifolia (tithonia) for its agronomic characteristics and its good biomass production is an attractive alternative to guarantee a sustainable production. In this paper are show the results of researchers that were performed to evaluate the effect of T. diversifolia plant material 10 forage meal intake on physiological indicators of digestive organs and accessories of the gastrointestinal tract, as well as blood biochemistry indicators of two poultry categories. For this the chemical composition and secondary metabolites present in the plant material were determined. A total of five level of the tree forage meal (0, 5, 10, 15 and 20 %) were studied and four levels (0, 10, 15 and 20 %) as partial substitution of the corn/soybean meal in diets for 42 days broilers and replacement pullets of laying hens of 18 weeks respectively. The impact of their intake was evaluated in: 1) macroscopic morphometric indicators of digestive organs: crop, proventriculus, gizzard, small intestine, caeca, large intestine and accessories (liver and pancreas) of the gastrointestinal tract; 2) microscopic morphometric indicators (histophatologic evaluation); 3) quantitative evaluation of the morphometric changes in the structure of the studied organs with the intake of T. diversifolia plant material 10 forage meal in laying hens replacement and 4) determination of the blood biochemistry indicators in both categories. The data were analyzed when considering the morphofunctional capacity of the digestive system and accessory organs in the mentioned poultry category. The results obtained contributed to the assessment of the physiological response and influence on the establishment of the adequate levels of T. diversifolia to achieve a sustainable animal production.}, }
