Acta Scientiarum. Animal Sciences最新文献

Assessment of dairy cows comfort in Algerian farms by the Welfare Quality® Protocol 通过福利质量协议评估阿尔及利亚农场的奶牛舒适度

Acta Scientiarum. Animal Sciences Pub Date : 2023-08-17 DOI: 10.4025/actascianimsci.v45i1.61533

Amel Benatallah, Sofiane Boudjellaba, Wahiba Zenad, Amel Milla, Faiçal Ghozlane, Michel Marie

{"title":"Assessment of dairy cows comfort in Algerian farms by the Welfare Quality® Protocol","authors":"Amel Benatallah, Sofiane Boudjellaba, Wahiba Zenad, Amel Milla, Faiçal Ghozlane, Michel Marie","doi":"10.4025/actascianimsci.v45i1.61533","DOIUrl":"https://doi.org/10.4025/actascianimsci.v45i1.61533","url":null,"abstract":"The objective of this study was to determine the frequency and degree of discomfort in dairy cows and the risk factors associated by taking into account six animal welfare indicators included in the Welfare Quality® Protocol (WQ®): lying time, lying outside lying area, collision and cleanliness assessed on three body areas: udder, hindquarters and hind limbs. These indicators were carried out on 1,200 dairy cows belonging to 100 dairy farms in the province of Algiers, which 53% were kept in permanent tie stalls and 47% in partial tie stalls. Observation results showed a low average overall score of comfort (40.8 ± 10.62). This was mainly related to a long lying time (5.9s ± 0.89) of which 41.0% of the farms surveyed exceeded the alert threshold (>6.3s) and 39.0% the alarm threshold (>5.2s), a very high degree of dirtiness in udder (62.6%±21.9), hind quarters (60.6%±21.5) and hind limbs (60.6±21.4). As a result, the majority of farms exceeded the alert thresholds: 100.0% (udder), 86.0% (hindquarters) and 63.0% (hind limbs). Highly significant correlations were observed between the different aspects of comfort assessed (p < 0.0001). To reconcile dairy cows’ welfare and productivity, it is essential to improve their comfort.","PeriodicalId":7149,"journal":{"name":"Acta Scientiarum. Animal Sciences","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-08-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"136337947","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Alternative measures to evaluate the accuracy and bias of genomic predictions with censored records 用审查记录评估基因组预测的准确性和偏差的替代方法

Acta Scientiarum. Animal Sciences Pub Date : 2023-08-17 DOI: 10.4025/actascianimsci.v45i1.61509

Geraldo Magela da Cruz Pereira, Sebastião Martins Filho, Renata Veroneze, Luiz Fernando Brito, Vinícius Silva dos Santos, Leonardo Siqueira Glória

{"title":"Alternative measures to evaluate the accuracy and bias of genomic predictions with censored records","authors":"Geraldo Magela da Cruz Pereira, Sebastião Martins Filho, Renata Veroneze, Luiz Fernando Brito, Vinícius Silva dos Santos, Leonardo Siqueira Glória","doi":"10.4025/actascianimsci.v45i1.61509","DOIUrl":"https://doi.org/10.4025/actascianimsci.v45i1.61509","url":null,"abstract":"This study aimed to propose and compare metrics of accuracy and bias of genomic prediction of breeding values for traits with censored data. Genotypic and censored-phenotypic information were simulated for four traits with QTL heritability and polygenic heritability, respectively: C1: 0.07-0.07, C2: 0.07-0.00, C3: 0.27-0.27, and C4: 0.27-0.00. Genomic breeding values were predicted using the Mixed Cox and Truncated Normal models. The accuracy of the models was estimated based on the Pearson (PC), maximal (MC), and Pearson correlation for censored data (PCC) while the genomic bias was calculated via simple linear regression (SLR) and Tobit (TB). MC and PCC were statistically superior to PC for the trait C3 with 10 and 40% censored information, for 70% censorship, PCC yielded better results than MC and PC. For the other traits, the proposed measures were superior or statistically equal to the PC. The coefficients associated with the marginal effects (TB) presented estimates close to those obtained for the SLR method, while the coefficient related to the latent variable showed almost unchanged pattern with the increase in censorship in most cases. From a statistical point of view, the use of methodologies for censored data should be prioritized, even for low censoring percentages.","PeriodicalId":7149,"journal":{"name":"Acta Scientiarum. Animal Sciences","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-08-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"136337951","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Incidence of leptospirosis in non-human primates at the santarém zoo, Pará, Brazil 巴西帕尔<e:1> santarsamim动物园非人类灵长类动物钩端螺旋体病的发病率

Acta Scientiarum. Animal Sciences Pub Date : 2023-08-17 DOI: 10.4025/actascianimsci.v45i1.61507

Raimundo Nonato Colares Camargo Junior, Camila Monteiro de Macedo, Tatiana Vieira da Silva, Welligton Conceição da Silva, Ellen Patricia Correa Lisboa

引用次数: 0

Levels of organochlorine contaminants in natural bovine milk marketed in Mojuí dos Campos and Belterra, Brazil 巴西Mojuí dos Campos和Belterra市售天然牛奶中有机氯污染物水平

Acta Scientiarum. Animal Sciences Pub Date : 2023-08-17 DOI: 10.4025/actascianimsci.v45i1.61721

Isabella Clarissa Vasconcelos Rêgo, Julio César Amaral Cardoso, José Augusto Amorim Silva do Sacramento, Márcia Mourão Ramos Azevedo, Joseph Simões Ribeiro, Ruy Bessa Lopes, Lucinewton Silva de Moura, Rosivaldo de Alcântara Mendes, Paulo Sérgio Taube

{"title":"Levels of organochlorine contaminants in natural bovine milk marketed in Mojuí dos Campos and Belterra, Brazil","authors":"Isabella Clarissa Vasconcelos Rêgo, Julio César Amaral Cardoso, José Augusto Amorim Silva do Sacramento, Márcia Mourão Ramos Azevedo, Joseph Simões Ribeiro, Ruy Bessa Lopes, Lucinewton Silva de Moura, Rosivaldo de Alcântara Mendes, Paulo Sérgio Taube","doi":"10.4025/actascianimsci.v45i1.61721","DOIUrl":"https://doi.org/10.4025/actascianimsci.v45i1.61721","url":null,"abstract":"Analyzing the organochlorine pesticide (OCP) content in milk is relevantbecause it helps evaluate the quality of milk that reaches the consumer's table and also helps identify the geographical areas where there is a high possibility of contamination. Accordingly,thispilot project was aimed at determining the extent of contamination by OCP residues and their metabolites in fresh cow's milk in Mojuí dos Campos and Belterra, Pará, using solid-phase extraction (SPE) and gas chromatography coupled with electron capture detection (GC-ECD). The OCPs evaluated in this study weredichlorodiphenyltrichloroethane (DDT) and its metabolites (dichlorodiphenyldichloroethylene (DDE) and dichlorodiphenyldichloroethane (DDD)), hexachlorocyclohexane (HCH) (α, β, γ, and δ), endosulfanα and β, andendosulfansulfate. None of the thirty bovine milk samples analyzedshowed any contamination with OCPs.TheOCP content was within the limit of quantification of the method. The results of this study add to the existing knowledge on the quality ofbovine milk produced in these locations. However, further researchon other environmental matricesis required to confirm the results obtained in this study.","PeriodicalId":7149,"journal":{"name":"Acta Scientiarum. Animal Sciences","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-08-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"136337949","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Biological performance and carcass yield of yearling Gumuz sheep under graded level concentrate supplementation in Ethiopia 埃塞俄比亚古木兹羊分级精料饲喂条件下的生物学性能和胴体产量

Acta Scientiarum. Animal Sciences Pub Date : 2023-08-17 DOI: 10.4025/actascianimsci.v45i1.61428

Alemu Tarekegn, Kifetew Adane, Desalegn Amsalu, Yohanes Wolelaw, Ewnetu Tarekegn

{"title":"Biological performance and carcass yield of yearling Gumuz sheep under graded level concentrate supplementation in Ethiopia","authors":"Alemu Tarekegn, Kifetew Adane, Desalegn Amsalu, Yohanes Wolelaw, Ewnetu Tarekegn","doi":"10.4025/actascianimsci.v45i1.61428","DOIUrl":"https://doi.org/10.4025/actascianimsci.v45i1.61428","url":null,"abstract":"An experiment was conducted to investigate the effects of graded levels of concentrate on feed intake, biological performance and carcass characteristics of yearling Gumuz sheep. The sheep were purchased and treated against endo- and ecto- parasites before commencing the study. The experimental animals were offered natural grass hay as a basal ration. The experimental design was a Randomized Complete Block Design (RCBD) with six replications. Treatment feeds were arranged in the same amount of wheat bran but in different levels of sesame seed cake which comprises: 150 g wheat bran + 0 g sesame seed cake DM day-1 (T1), 150 g wheat bran + 250 g sesame seed cake DM day-1 (T2), 150 g wheat bran + 350 g sesame seed cake DM day-1 (T3) and 150 g wheat bran + 450 g sesame seed cake DM day-1 (T4). The experiment was conducted for 90 days after 15 days of adaptation period to the experimental feeds and conditions, which were then followed by carcass evaluation at the end. Sheep in T2 and T4 achieved higher total DM intake (1004.03-1072.57 g day-1) than T1 and T3. Sheep fed on graded-level sesame cake supplements (T2, T3 and T4) recorded significantly higher average daily gain (ADG) than the control (T1) and resulted in higher feed conversion efficiency (FCE). As a result of better slaughter weight (SW) achieved significant hot carcass weight (HCW) was recorded in sheep at T3 and T4. Among the concentrate levels, T2, T3 and T4 were found optimum in improving carcass yield and major meat quality attributes. Sheep supplemented with T3 had the highest net return (26.66 USD) and highest marginal rate of revenue (MRR) (6.53) compared to the other high-level sesame cake-supplemented groups. Thus, it is recommended that the supplementation of hay with high-level sesame cake supplement (T3) is biologically efficient and potentially profitable in the feeding of growing Gumuz sheep.","PeriodicalId":7149,"journal":{"name":"Acta Scientiarum. Animal Sciences","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-08-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"136337948","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Proximal and mineral composition of native fish species from Amazonas, Brazil 巴西亚马逊河本地鱼类的近缘和矿物组成

Acta Scientiarum. Animal Sciences Pub Date : 2023-08-17 DOI: 10.4025/actascianimsci.v45i1.61884

Antônio Fábio Lopes de Souza, Antonio José Inhamuns da Silva, Alexandre Augusto Barai, João Paulo Ferreira Rufino, Tiago Viana da Costa

{"title":"Proximal and mineral composition of native fish species from Amazonas, Brazil","authors":"Antônio Fábio Lopes de Souza, Antonio José Inhamuns da Silva, Alexandre Augusto Barai, João Paulo Ferreira Rufino, Tiago Viana da Costa","doi":"10.4025/actascianimsci.v45i1.61884","DOIUrl":"https://doi.org/10.4025/actascianimsci.v45i1.61884","url":null,"abstract":"For decades, researches were developed about the diversity of fishes in the Amazon basin and their consumption by the people. In this context, an important gap identified was a lack of information about the nutritional composition of some of the main Amazon fish species consumed and traded. Front this, the objective of this study was to evaluate the chemical composition and mineral content of filets from 10 fish species with the highest landing volume in Amazonas State. The fish species selected were curimatã, jaraqui, mapará, matrinxã, pacu, piramutaba, sardinha, surubim, tambaqui and tucunaré. Were collected 20 samples (fishes) from each species according to the hydrological cycles of the region (20 samples in the flood and 20 samples in drought). Ten fish samples were processed to determine the proximal composition and 10 fish samples were used to determine mineral content (macro and micro minerals). The proximal composition of fish species analysed varied widely between species and seasons, with an emphasis on moisture and lipid content. Fishes in the flood season presented higher content of nutrients than drought season. This result also was observed in the minerals profile, where fishes in the flood season presented the highest (p < 0.05) minerals content.","PeriodicalId":7149,"journal":{"name":"Acta Scientiarum. Animal Sciences","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-08-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"136337952","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Thermal comfort and productive responses of 7/8 holstein-gyr cows subjected to cooling system 冷却系统对7/8头荷斯坦奶牛热舒适和生产反应的影响

Acta Scientiarum. Animal Sciences Pub Date : 2023-08-17 DOI: 10.4025/actascianimsci.v45i1.61295

Marcos Vinícius da Silva, Gledson Luiz Pontes de Almeida, Héliton Pandorfi, Alex Souza Moraes, Gleidiana Amélia Pontes de Almeida Macêdo, Maria Eduarda Gonçalves de Oliveira, Maria Vitória Neves de Melo, Taize Calvacante Santana

{"title":"Thermal comfort and productive responses of 7/8 holstein-gyr cows subjected to cooling system","authors":"Marcos Vinícius da Silva, Gledson Luiz Pontes de Almeida, Héliton Pandorfi, Alex Souza Moraes, Gleidiana Amélia Pontes de Almeida Macêdo, Maria Eduarda Gonçalves de Oliveira, Maria Vitória Neves de Melo, Taize Calvacante Santana","doi":"10.4025/actascianimsci.v45i1.61295","DOIUrl":"https://doi.org/10.4025/actascianimsci.v45i1.61295","url":null,"abstract":"The objective of this research was to identify the influence of the evaporative adiabatic cooling system (EACS) on the thermal comfort and productive responses of dairy cattle, through multivariate analysis by principal components (PC), in the summer and winter seasons of the semiarid region of Pernambuco, Brazil. The data came from an experiment that included 16 multiparous lactating cows (7/8 Holstein-Gyr), randomly distributed in 4 sets, with 4 experimental phases and 4 treatments (0, 10, 20, and 30 min.). The multivariate analysis was carried out through PC for the thermal comfort indices, physiological variables, and milk production and composition. The highest milk production in the summer season was obtained for animals exposed to the cooling system for 30 min. In the winter season in the morning period, the use of the EACS for 10 min. was sufficient for improvements in milk production. The times of exposure to EACS caused changes in the composition of milk, for both seasons. Principal component analysis made it possible to verify a positive correlation of evaporative cooling with thermal comfort, physiological responses, and production and composition of milk of lactating cows.","PeriodicalId":7149,"journal":{"name":"Acta Scientiarum. Animal Sciences","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-08-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"136337950","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Requirement for digestible lysine in Nile tilapias (Oreochromis niloticus) with live weight between 500 and 600 g 活重500 ~ 600克尼罗罗非鱼(Oreochromis niloticus)对可消化赖氨酸的需求

Acta Scientiarum. Animal Sciences Pub Date : 2023-08-17 DOI: 10.4025/actascianimsci.v45i1.61547

José Claudio Bezerra Muniz Junior, Suzana Linhares Haidamus, Noédson de Jesus Beltrão Machado, Felipe Dilelis, Ronner Joaquim Mendonça Brasil, Débora Vaccari Quaresma, Cristina Amorim Ribeiro de Lima

{"title":"Requirement for digestible lysine in Nile tilapias (Oreochromis niloticus) with live weight between 500 and 600 g","authors":"José Claudio Bezerra Muniz Junior, Suzana Linhares Haidamus, Noédson de Jesus Beltrão Machado, Felipe Dilelis, Ronner Joaquim Mendonça Brasil, Débora Vaccari Quaresma, Cristina Amorim Ribeiro de Lima","doi":"10.4025/actascianimsci.v45i1.61547","DOIUrl":"https://doi.org/10.4025/actascianimsci.v45i1.61547","url":null,"abstract":"The present study was carried out with the objective of determining the requirements for digestible lysine in Nile tilapia during the 500 to 600 g live weight stage. Isocaloric and isonitrogenous diets were tested with increasing amounts of digestible lysine. L-lysine HCl (78%) were used to replace glutamic acid at increasing levels, resulting in treatments of 9.3, 12.3, 15.3, 18.3 and 21.3 g kg-1 of digestible lysine. Three hundred Nile tilapias with an average weight of 519 ± 27.23 g were used and distributed among 25 tanks. The physical and chemical parameters of the water were pH, dissolved oxygen, salinity, conductivity and temperature. The mortality rate was registered daily. Two slaughters were performed at 28 and 50 days after the beginning of the experiment. It was estimated that an amount of 13.1 g kg-1 of digestible lysine was ideal for obtaining higher WG. Fish slaughtered after 50 days, the digestible lysine requirements were determined to be 14.5 g kg-1 for the lowest carcass humidity and 14.6 g kg-1 for the greatest carcass ethereal extract. Nile tilapias with live weight between 500 and 600 grams require 13.1 g kg-1 of digestible lysine in the diet for greater WG (90.53 g) and better FCR (2.55).","PeriodicalId":7149,"journal":{"name":"Acta Scientiarum. Animal Sciences","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-08-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"136337953","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

Fatty acid profile, omegas and lipid quality in commercial cuts of pirarucu (Arapaima gigas Schinz, 1822) cultivated in excavated tanks 挖掘槽中养殖的琵琶鱼(Arapaima gigas Schinz, 1822)商业切片中的脂肪酸、欧米茄和脂质

Acta Scientiarum. Animal Sciences Pub Date : 2023-08-11 DOI: 10.4025/actascianimsci.v45i1.61186

Jucilene Cavali, Jerônimo Vieira Dantas Filho, Carla Taveira Nunes, Elvino Ferreira, Rute Bianchini Pontuschka, Renato Zanella, Maria Luiza Rodrigues de Souza

{"title":"Fatty acid profile, omegas and lipid quality in commercial cuts of pirarucu (Arapaima gigas Schinz, 1822) cultivated in excavated tanks","authors":"Jucilene Cavali, Jerônimo Vieira Dantas Filho, Carla Taveira Nunes, Elvino Ferreira, Rute Bianchini Pontuschka, Renato Zanella, Maria Luiza Rodrigues de Souza","doi":"10.4025/actascianimsci.v45i1.61186","DOIUrl":"https://doi.org/10.4025/actascianimsci.v45i1.61186","url":null,"abstract":"The study aimed to determine the fatty acid profile, omegas and lipid quality indeces in commercial cuts of pirarucu (Arapaima gigas) of the slaughter class 11.1 to 14.0 kg. Sample collections were carried out in two fish processing industries located in Rondônia state, Brazil. The experimental design was completely randomized, with processing performed in triplicate. Data were submitted to ANOVA to assess differences between commercial cuts in chemical compositions. If ANOVA appeared statistically significant (α=0.05), the averages were compared by Tukey's test. In the composition of fatty acids, there was a difference (p <0.05) between cuts. Commercial cuts that expressed the highest percentages of SFAs tail fillet 51.2%, of MUFAs fillet mignon 39.8% and of PUFAs deboned cut 20.7%. The indeces prescribed for lipid quality, ∑PUFAs/∑SFAs, ∑PUFAs (n-6/∑n-3), AI, TI and HH, indicate that commercial cuts have lipid quality. Deboned is the cut with the highest PUFA fatty acid content, with the highest values of Omega 3, 6, 7 and n-9 being also expressed. Nutritional information is important for the processes of conservation and processing, development of new products on the market, as well as guiding the form of preparation, thus providing commercial security for different market niches.","PeriodicalId":7149,"journal":{"name":"Acta Scientiarum. Animal Sciences","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-08-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135492241","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Effects on meat quality of Yerba mate (Ilex paraguariensis) in the diet of chickens 饲粮中添加巴拉圭茶对肉品质的影响

Acta Scientiarum. Animal Sciences Pub Date : 2023-08-11 DOI: 10.4025/actascianimsci.v45i1.61209

Bruna Barreto Przybulinski, Rodrigo Garófallo Garcia, Maria Fernanda de Castro Burbarelli, Sarah Sgavioli, Jean Kaique Valentim, Felipe Cardoso Serpa

{"title":"Effects on meat quality of Yerba mate (Ilex paraguariensis) in the diet of chickens","authors":"Bruna Barreto Przybulinski, Rodrigo Garófallo Garcia, Maria Fernanda de Castro Burbarelli, Sarah Sgavioli, Jean Kaique Valentim, Felipe Cardoso Serpa","doi":"10.4025/actascianimsci.v45i1.61209","DOIUrl":"https://doi.org/10.4025/actascianimsci.v45i1.61209","url":null,"abstract":"The objective is to evaluate the effects of the inclusion of yerba mate in the diet on the yield and quality of chicken meat stored frozen for 120 days after slaughter. The birds were distributed in a completely randomized design, with four treatments, and eight replications with 25 birds each. The treatments consisted of providing a basal diet with 1, 2, 4, and 6 g kg-1 of ground dehydrated Yerba mate. At slaughter, temperature, pH, and carcass yield were measured. 120 days after meat freezing, measurements of pH, colorimetry, cooking weight loss (CWL), shear force, and water retention capacity were estimated. The parameters evaluated after slaughter showed regression effects on breast and drumstick temperature. Breast temperature showed a decreasing linear effect (R2=0.61). For the variable thigh temperature, there was a negative quadratic effect (R2=0.66). The quality characteristics of breast and drumstick evaluated 120 days after freezing showed an increasing linear effect of drumstick CWL (R2=0.38). Yerba mate can be included in up to 6 g kg-1 in chicken feed without changing pH, color, and meat tenderness after 120 days of freezing, maintaining carcass and cut yields.","PeriodicalId":7149,"journal":{"name":"Acta Scientiarum. Animal Sciences","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-08-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135492240","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0