Cu-ID: https://cu-id.com/1996/v56n3e05 Redirecciones: 162 URL: https://cjascience.com/index.php/CJAS/article/view/1054 OAI: https://cjascience.com/index.php/CJAS/oai?verb=GetRecord&metadataPrefix=oai_dc&identifier=oai:ojs.pkp.sfu.ca:article/1054 BibTeX: @article{Productive_performance_of_Clarias_gariepinus_small_fish,_feeding_with_reduced_protein_and_similar_energy_concentration, title = {Productive performance of Clarias gariepinus small fish, feeding with reduced protein and similar energy concentration}, author = {Llanes, J. E. and Herrera, Magaly}, journal = {Cuban Journal of Agricultural Science}, volume = {56}, number = {3}, pages = {}, year = {2023-10-16}, publisher = {Instituto de Ciencia Animal}, language = {eng}, url = {https://cu-id.com/1996/v56n3e05}, cu_id = {https://cu-id.com/1996/v56n3e05}, abstract = {The productive performance of Clarias gariepinus small fish, feeding with reduced protein and similar energy concentration was evaluated. A total of 360 animals were random distributed according to a one-way model in three treatments, with three repetitions. The experimental treatments were: D1 control) 60 % of fish meal (47.89 % CP and 14.04 MJ/kg DE), D2) 51 % of fish meal (44.71 % CP and 13.62 MJ/kg) and D3) 42 % of fish meal (41.08 % CP and 13.54 MJ/kg DE), supplied at 10 % of body weight for 40 days. There were differences in the supply of crude protein (8.25, 7.56 and 6.67 g), which only affected the final weight of the fish in the D3 treatment (14.89, 14.61 and 13.46 g). However, feed conversion (1.24, 1.25 and 1.29) and survival (89.17, 86.67 and 85.83%) did not differ between treatments and protein efficiency improved (1.69, 1.80 and 1.87). The economic analysis showed monetary savings for feeding of $US 162.09 and 268.00 /t, by reducing the concentrations of crude protein in the rations. It is concluded that the productive performance of Clarias gariepinus small fish, feeding with reduced protein and similar energy concentration, is not compromised and has a positive economic effect.Key words: feeding, catfish, nutrition, nutritional requirements.}, }
Cu-ID: https://cu-id.com/1996/v56n3e06 Redirecciones: 161 URL: https://cjascience.com/index.php/CJAS/article/view/1053 OAI: https://cjascience.com/index.php/CJAS/oai?verb=GetRecord&metadataPrefix=oai_dc&identifier=oai:ojs.pkp.sfu.ca:article/1053 BibTeX: @article{Partial_replacement_of_raw_matters_by_natural_zeolite_in_Clarias_gariepinus_feed, title = {Partial replacement of raw matters by natural zeolite in Clarias gariepinus feed}, author = {Llanes, J. E. and Castro, M. and Herrera, Magaly}, journal = {Cuban Journal of Agricultural Science}, volume = {56}, number = {3}, pages = {}, year = {2022-07-01}, publisher = {Instituto de Ciencia Animal}, language = {eng}, url = {https://cu-id.com/1996/v56n3e06}, cu_id = {https://cu-id.com/1996/v56n3e06}, abstract = {The partial replacement of 3, 5 and 7 % of each raw matter by Cuban natural zeolite in formulations of small fish feeds and Clarias gariepinus fattening was evaluated. Two bioassays were carried out, according to a completely random design with three repetitions. In the growth stage, a total of 225 small fish of 1.03 ± 0.03 g of initial weight were used, distributed in three treatments (0, 3 and 5 % of zeolite). Similarly, in fattening, a total of 135 animals of 10.12 ± 0.05 g of initial weight were used in three treatments (0, 5 and 7 %). A decrease in the protein supplied/fish was recorded, when the levels of zeolite in the rations increased. However, the indicators of growth, feed efficiency and survival were not disadvantaged up to 5 % in the small fish feed and 7 % in the fattening feed. The economic analysis showed that the use of zeolite decreases the costs of the rations and contributes with amounts of earnings for feeding. It is concluded that the partial replacement of up to 5 % of the raw matters by natural zeolite in the small fish feed and 7 % in the fattening feed does not compromise the productive performance of Clarias gariepinus; in addition to having a positive economic effect.Key words: feeding, catfish, mineral, nutrition, zeolite.}, }
Cu-ID: https://cu-id.com/1996/v56n3e01 Redirecciones: 222 URL: https://cjascience.com/index.php/CJAS/article/view/1055 OAI: https://cjascience.com/index.php/CJAS/oai?verb=GetRecord&metadataPrefix=oai_dc&identifier=oai:ojs.pkp.sfu.ca:article/1055 BibTeX: @article{Economic_considerations_to_decide_on_the_prices_of_buffalo_steer_in_performance_testing,_according_to_their_individual_economic_merit, title = {Economic considerations to decide on the prices of buffalo steer in performance testing, according to their individual economic merit}, author = {Fraga, L. M. and Cino, Delia M. and López, O.}, journal = {Cuban Journal of Agricultural Science}, volume = {56}, number = {3}, pages = {}, year = {2022-06-01}, publisher = {Instituto de Ciencia Animal}, language = {eng}, url = {https://cu-id.com/1996/v56n3e01}, cu_id = {https://cu-id.com/1996/v56n3e01}, abstract = {Information from performance testing of Buffalypso x Carabao crossbred buffaloes, from a genetics enterprise in Cuba, was used. The information comprised the interval from 2011 to 2018, and corresponded to the weight at weaning (8 months) and the final live weight of the test (18 months of age), their breeding values and a selection index that combined both characteristics. The cost sheet of buffalo activity of the enterprise was made, with regard to performance testing. Individual benefit or individual economic merit was determined using two sales prices: 11.20 and 6.40 Cuban pesos/kg of final live weight. Proposals for steer prices were made at the end of the performance testing, according to individual economic merit. Three different calculation methods were used. Data processing was carried out using SAS 2013. Multiple regressions were obtained between benefits and individual breeding values, as well as with the selection index, from the consideration of the two prices. The linearity that exists between the benefits and the breeding values that justify the selection of animals with greater merit was showed, as well as the usefulness of the evaluation by index. Higher values were associated with higher benefits, particularly when the higher price per kilogram of live weight was used. The importance of evaluating steers in performance testing for individual benefit was highlighted, and it was considered that their sale prices should be associated with their final live weight, breeding values and accuracy of the index used to determine individual economic merit.Key words: prices, benefit, breeding value, indices, steers, buffaloes}, }
Cu-ID: https://cu-id.com/1996/v56n3e03 Redirecciones: 201 URL: https://cjascience.com/index.php/CJAS/article/view/1052 OAI: https://cjascience.com/index.php/CJAS/oai?verb=GetRecord&metadataPrefix=oai_dc&identifier=oai:ojs.pkp.sfu.ca:article/1052 BibTeX: @article{Endospores_of_Bacillus_subtilis_with_probiotic_potential_in_animals_of_zootechnical_interest, title = {Endospores of Bacillus subtilis with probiotic potential in animals of zootechnical interest}, author = {Milián, Grethel and Rondón, Ana J. and Rodríguez, Marlén and Beruvides, A. and Pérez, M. L.}, journal = {Cuban Journal of Agricultural Science}, volume = {56}, number = {3}, pages = {}, year = {2022-07-15}, publisher = {Instituto de Ciencia Animal}, language = {eng}, url = {https://cu-id.com/1996/v56n3e03}, cu_id = {https://cu-id.com/1996/v56n3e03}, abstract = {At present, poultry, pig and cattle production constitute the most important branches of animal production in the world, which currently contributes to fulfill the protein needs of the world population. The use of probiotics, prebiotics and synbiotics is predicted with the purpose of using them as animal growth promoters. Among the species that are most used for the elaboration of these products, are those from Bacillus genus. One of them is Bacillus subtilis, a bacterium able to stimulate the immune system, produce enzymes, resist acid pH gastric barriers, and produce antimicrobial substances that inhibit different pathogenic microorganisms. For these reasons, zootechnical additives, made with Bacillus, are considered an alternative in the current livestock industry. The objective of this review was to show the probiotic potential in pig farming, poultry farming and calf rearing that Bacillus subtilis endospores have.Key words: alternatives in animal production, calves, chickens, pigs}, }
Cu-ID: https://cu-id.com/1996/v57e05 Redirecciones: 265 URL: https://cjascience.com/index.php/CJAS/article/view/1096 OAI: https://cjascience.com/index.php/CJAS/oai?verb=GetRecord&metadataPrefix=oai_dc&identifier=oai:ojs.pkp.sfu.ca:article/1096 BibTeX: @article{Evaluation_of_the_effect_of_disinfection_of_Cuba_CT-115_grass_explants_with_sodium_hypochlorite._Technical_note, title = {Evaluation of the effect of disinfection of Cuba CT-115 grass explants with sodium hypochlorite. Technical note}, author = {Hernández Montesinos, A. R. and Palma Pérez, J. J. and Abreu Cruz, Amanda and Herrera Villafranca, Magaly and Herrera, R. S.}, journal = {Cuban Journal of Agricultural Science}, volume = {57}, number = {}, pages = {}, year = {2023-10-09}, publisher = {Instituto de Ciencia Animal}, language = {eng}, url = {https://cu-id.com/1996/v57e05}, cu_id = {https://cu-id.com/1996/v57e05}, abstract = {In order to evaluate the effect of different concentrations of sodium hypochlorite (3 and 5%) on the disinfection of explants, apical cone of Cenchrus purpureus vc. Cuba CT-115, for its in vitro establishment an experiment was developed in Laboratorio de Biotecnología de la Facultad de Agronomía de la Universidad Agraria de La Habana. Two observations were made at four and eight days after sowing. The data were analyzed by Chi-square comparison proportions, for p < 0.05 and ComparPro 1.0. statistical package was applied. The analysis of proportion comparison of the studied variables at four and eight days did not have significant differences between the treatments with sodium hypochlorite at 3 and 5%. There was not contamination by fungi or bacteria in the two treatments studied at four days. Bacterial contamination occurred at eight days, but there were not differences between treatments. The explants disinfection of Cuba CT-115 can be performed with both concentrations of sodium hypochlorite, but it is recommended to disinfect apical cones of Cuba CT-115 with 3% sodium hypochlorite, which allows a saving of this substance during the procedure. It is suggested to study other concentrations of sodium hypochlorite and different immersion times. Key words: apex, contamination, Cenchrus purpureus, in vitro}, }
Cu-ID: https://cu-id.com/1996/v57e03 Redirecciones: 250 URL: https://cjascience.com/index.php/CJAS/article/view/1073 OAI: https://cjascience.com/index.php/CJAS/oai?verb=GetRecord&metadataPrefix=oai_dc&identifier=oai:ojs.pkp.sfu.ca:article/1073 BibTeX: @article{Effect_of_regrowth_age_and_climatic_factors_on_primary_metabolites_content_of_Tithonia_diversifolia, title = {Effect of regrowth age and climatic factors on primary metabolites content of Tithonia diversifolia}, author = {Ramírez-Pérez, Y. and Herrera-Herrera, Rocío C. and Verdecia, D. M. and Herrera, R. S. and Chacón-Marcheco, E. and Ledea, J. L. and Ramírez, J. L.}, journal = {Cuban Journal of Agricultural Science}, volume = {57}, number = {}, pages = {}, year = {2023-03-07}, publisher = {Instituto de Ciencia Animal}, language = {eng}, url = {https://cu-id.com/1996/v57e03}, cu_id = {https://cu-id.com/1996/v57e03}, abstract = {Primary metabolites, very abundant in nature, are essentials for the physiological development of the plant; which are in great amount and of easy extraction. With the objective of evaluating the effect of the plant maturity and the climatic factors on the primary metabolites content in Tithonia diversifolia theexperiment was developed, according to a random block design, with three treatments (60, 120 and 180 days) and four replications. Contents of nitrogen, glucose, fructose and sucrose were evaluated through analysis of variance, correlation and regression with the SPSS statistical system, version 22.0 The contents of nitrogen, glucose, sucrose and fructose during the two seasonal periods in T. diversifolia decreased with the regrowth age (from 60 up to 180 days) in 13.15, 0.008, 0.015 and 0.007 g.kg-1 for the rainy period, while for the dry season were 17.39, 0.002, 0.003 and 0.0009 g.kg-1, respectively. Quadratic regression equations were fitted with the regrowth age for all the indicators. All regression coefficients were higher to 0.95 for primary metabolites in both seasonal periods, except for sucrose and fructose during the dry season was 0.93 and 0.9, respectively.The correlations were very changeable were the rainy days were related with all primary metabolites during the rainy season, while during the dry season only nitrogen showed significant correlation. The functions explained the close correspondence between growth and the primary metabolites content and the fluctuations found in the sugars influenced by the shrub phenological state and their photosynthetic activity.Key words: shrub, equations, age, climate, metabolites, Tithonia}, }
Cu-ID: https://cu-id.com/1996/v57e07 Redirecciones: 245 URL: https://cjascience.com/index.php/CJAS/article/view/1095 OAI: https://cjascience.com/index.php/CJAS/oai?verb=GetRecord&metadataPrefix=oai_dc&identifier=oai:ojs.pkp.sfu.ca:article/1095 BibTeX: @article{Evaluation_of_the_substitution_of_granule_corn_by_integral_sweet_potato_silage_(Ipomoea_batata,_L.)_in_a_diet_for_the_fattening_of_male_cattle, title = {Evaluation of the substitution of granule corn by integral sweet potato silage (Ipomoea batata, L.) in a diet for the fattening of male cattle}, author = {Ruiloba, M. H. and Maure, J. and Solís, C.}, journal = {Cuban Journal of Agricultural Science}, volume = {57}, number = {}, pages = {}, year = {2023-10-09}, publisher = {Instituto de Ciencia Animal}, language = {eng}, url = {https://cu-id.com/1996/v57e07}, cu_id = {https://cu-id.com/1996/v57e07}, abstract = {In order to evaluate the substitution of ground granule corn by integral sweet potato silage in a diet for male cattle fattening, a completely randomized design with factorial arrangement 2x2 was used. A total of two substitution levels of the granule corn by integral sweet potato silage, dry basis were studied: 0.0 and 100.0 % and two evaluation periods (28 days each), with previous adaptation of 21 days. The diets were iso-energetic (10.88 MJ ME kg-1 DM) and iso-protein (12.0 % CP). The silage had good organoleptic characteristics. There was not effect of the silage (p > 0.05) on dry matter intake, crude protein and metabolizable energy (2.66 kg, 0.321 and 27.97 MJ 100 kg-1 LWday1). The daily weight gain (p > 0.05), the dry matter conversion and metabolizable energy (p > 0.05), with average of 1.84 kg animal-1 day-1, 6.86 kg and 72.00 MJ kg-1 weight gain , respectively was neither affected. The substitution of 0.0 % showed better crude protein conversion than those of the 100.0 % (0.796 y 0.849 kg kg-1of weight gain) (p < 0.01). The weight in hot carcass was not affected by the silage, with average of 269.4 kg animal-1 (p > 0.05).The feeding cost of the treatment with the silage was 21.4 % lower than those with the ground granule corn. It is concluded that the integral sweet potato silage have viability as competitive alternative for the substitution of the granule corn in fattening diets of male cattle. Key words: silage, sweet potato, substitution level, weight gain, feeding cost}, }
Cu-ID: https://cu-id.com/1996/v57e04 Redirecciones: 224 URL: https://cjascience.com/index.php/CJAS/article/view/1094 OAI: https://cjascience.com/index.php/CJAS/oai?verb=GetRecord&metadataPrefix=oai_dc&identifier=oai:ojs.pkp.sfu.ca:article/1094 BibTeX: @article{Growth_promoting_effect_of_a_processed_vegetable_ingredient_in_pullets, title = {Growth promoting effect of a processed vegetable ingredient in pullets}, author = {Coello, K. D. and Castellanos, L. A. and Paz, P. E. and Valdivié, M. and Martínez, Y.}, journal = {Cuban Journal of Agricultural Science}, volume = {57}, number = {}, pages = {}, year = {2023-10-04}, publisher = {Instituto de Ciencia Animal}, language = {eng}, url = {https://cu-id.com/1996/v57e04}, cu_id = {https://cu-id.com/1996/v57e04}, abstract = {A total of 1,500 one-day-old Hy-Line W36 pullets were randomized in two treatments, 15 repetitions and 50 pullets per repetitions to evaluate the dietary use of a processed vegetable ingredient (PVI) as a functional feed on the growth performance of pullets. The dietary treatments consisted of the inclusion of 10, 8, 5, and 3 % of the processed vegetable ingredient in starter 1 (0-3 weeks), starter 2 (4-6 weeks), grower (7-12 weeks), developer and pre-lay (13-15; 16-17 weeks, respectively). From the third week on, the functional feed increased (P<0.05) the body weight of pullets compared to the control diet (193.98 vs 204.38 g), without notable changes for viability, uniformity, and feed conversion ratio for 17 experimental weeks (P>0.05). The dietary inclusion with the processed vegetable ingredient had a natural growth-promoting effect on pullets.Key words: body weight, dietary inclusion, feed intake, functional feed, birds}, }
Cu-ID: https://cu-id.com/1996/v57e06 Redirecciones: 238 URL: https://cjascience.com/index.php/CJAS/article/view/1093 OAI: https://cjascience.com/index.php/CJAS/oai?verb=GetRecord&metadataPrefix=oai_dc&identifier=oai:ojs.pkp.sfu.ca:article/1093 BibTeX: @article{Determination_of_typologies_of_rabbit_production_systems_in_Ciego_de_Avila_municipality,_Cuba, title = {Determination of typologies of rabbit production systems in Ciego de Avila municipality, Cuba}, author = {Martínez-Melo, J. and Serrano, J. O. and Mazorra, C. A. and Torres, Verena and Fontes, Dayami and Borroto, Angela}, journal = {Cuban Journal of Agricultural Science}, volume = {57}, number = {}, pages = {}, year = {2023-10-04}, publisher = {Instituto de Ciencia Animal}, language = {eng}, url = {https://cu-id.com/1996/v57e06}, cu_id = {https://cu-id.com/1996/v57e06}, abstract = {In order to typify the rabbit production systems in Ciego de Avila municipality, Cuba, quantitative and qualitative information of 49 rabbit farms were obtained. The Statistical Model of Impact Measuring was applied with the quantitative variables, which combine the factors analysis by the main components method with the hierarchical cluster, to typify the cases. The frequencies per typologies for qualitative variables were obtained. The rabbit production systems were typified into five groups: I) small farmers with land, younger, apply more mating (14.3 %) pardos. II) small farmers with land and older (42.9 %), III) small farmers without land, late weaning (12.5%), IV) medium farmers with land and semiintensive reproductive management with low efficiency (28.6%) and V) technical system, with semi-intensive reproductive management with low efficiency (2.0%). In the farmers, the Cuban Brown race, Chinchilla and different crosses predominate. The feeding system in general was based on forage resources, supplementation and little use of protein plants, except Tithonia diversifolia in groups I, III and V. Regardless of the productive scales, technological alternatives that guarantee greater productive and reproductive efficiency are not applied in the feeding system. This study shows that these typologies should be considered to implement an agricultural extension system that contributes to the training of farmers and the management and application of sustainable technological alternatives with the use of endogenous resources.Key words: multivariate analysis, livestock systems, Oryctolaguscuniculus.}, }
Cu-ID: https://cu-id.com/1996/v57e01 Redirecciones: 247 URL: https://cjascience.com/index.php/CJAS/article/view/1087 OAI: https://cjascience.com/index.php/CJAS/oai?verb=GetRecord&metadataPrefix=oai_dc&identifier=oai:ojs.pkp.sfu.ca:article/1087 BibTeX: @article{Genetic_diversity_of_the_Landim_mozambicano_goat, title = {Genetic diversity of the Landim mozambicano goat}, author = {Cavele, A. and Pérez Pineda, E. and Fonseca, N. and Ramírez, J. L. and Verdecia, D. and Martínez, María A. and Delgado, J. V. and Barba, C. J. and Grizelj, J.}, journal = {Cuban Journal of Agricultural Science}, volume = {57}, number = {}, pages = {}, year = {2023-10-04}, publisher = {Instituto de Ciencia Animal}, language = {eng}, url = {https://cu-id.com/1996/v57e01}, cu_id = {https://cu-id.com/1996/v57e01}, abstract = {With the purpose of determine the genetic diversity of the "Landim Mozambicano" goat, a panel of 33 microsatellites molecular markers were analyzed, selected and recommended by the “Comité de Expertos de la FAO” and the “Sociedad Internacional de Genética Animal” for diversity studies in sheep and goats species. Hair samples of 60 individuals from six Mozambique provinces (Manica, Tete, Sofala, Nampula, Gaza e Inhambane) were taken, which groups the highest number of animals from the breed. The ADN of the capillary bulb was extracted and amplified by PCR in the laboratorio de Biología Molecular del Animal Breeding Consulting, S.L, de la Universidad de Córdoba, España. Electophoresis in poliacrilamide gel was carried out to separate the obtaining fragments in an Automatic Sequencer ABI Prism® 377 XL (Applied Biosystems).The fragments analysis and genotyped was performed by the informatics programs Genescan and Genotyper 3.7 NT. It was determined: allele total per marker, expected and observed heterozygosities and Polymorphic Information Content. All the microsatellites were polymorphic, a total of 214 alleles with 6.4 as average per marker were found. From the analyzed panel a total of 29 were informative, 11 highly informative and 3 exceptionally informative for the breed. As main find, the heterozygosities reached values higher than 60 %. It is concluded that the microsatellites battery was adequate to study the breed, four of them can be excluded in future studies and the "Landim" goat is a breed with adequate genetic diversity. Key words: goats, markers, ADN, Mozambique.}, }
