BOLETIM DE INDUSTRIA ANIMAL最新文献_第5页

Aplicações e limites dos testes de Integridade Acrossômica e Reação Acrossômica Induzida por heparina para touros da raça Nelore Nelore公牛顶体完整性和肝素诱导的顶体反应测试的应用和局限性

IF 0.1

BOLETIM DE INDUSTRIA ANIMAL Pub Date : 2019-11-29 DOI: 10.17523/bia.2019.v76.e1453

D. F. Salvador, L. Nogueira, S. C. Salvador

{"title":"Aplicações e limites dos testes de Integridade Acrossômica e Reação Acrossômica Induzida por heparina para touros da raça Nelore","authors":"D. F. Salvador, L. Nogueira, S. C. Salvador","doi":"10.17523/bia.2019.v76.e1453","DOIUrl":"https://doi.org/10.17523/bia.2019.v76.e1453","url":null,"abstract":"The aim of this study was to evaluate the performance and variability of the results of functional tests for assessing acrosome integrity and heparin-induced acrosome reaction (IAR) in young Nellore bulls, as well as to verify their associations with other andrological parameters. Smears were prepared from 16 frozen semen samples of young Nellore bulls and stained with Trypan blue/Giemsa. The overall average post-freezing acrosome integrity was 85 ± 6%, with a reduction to 76 ± 8% after 4 hours of incubation and no large variation between bulls. Marked differences between bulls of the experiment were observed for the heparin IAR tests, with an average of 18 ± 9% (range 44% to 3%). The results suggest that both heparin and heparin + lysophosphatidylcholine were efficient inducers that should be used together in IAR evaluations. Comparison of the different andrological parameters between bulls with high and low IAR showed a difference (p<0.05) only for pre-freezing motility, with superior results for low IAR bulls (≤ 17%). There were no correlations between the andrological parameters and functional tests of sperm quality (acrosome integrity and IAR). Only pre-freezing sperm motility was negatively correlated with IAR (–0.51, p<0.05). In conclusion, the acrosome integrity and IAR tests are important complementary tests to evaluate the functional quality of sperm since they exhibit high variability between bulls and low association with other andrological parameters. However, the tests should be interpreted within the limits of evaluation of the processes associated with sperm quality and not as a broad indicator of bull fertility or reproductive capacity.","PeriodicalId":43616,"journal":{"name":"BOLETIM DE INDUSTRIA ANIMAL","volume":" ","pages":""},"PeriodicalIF":0.1,"publicationDate":"2019-11-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42312540","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

In vitro ovicidal and larvicidal activity of Psidium cattleianum Sabine leaves against gastrointestinal nematodes of naturally infected sheep 牛菖蒲叶对自然感染绵羊胃肠道线虫体外杀卵、杀幼虫活性的研究

IF 0.1

BOLETIM DE INDUSTRIA ANIMAL Pub Date : 2019-10-21 DOI: 10.17523/bia.2019.v76.e1450

M. Piza, A. Féboli, J. G. Augusto, L. A. Anjos, A. C. Laurentiz, V. Royo, F. Q. Alvarenga, R. S. Laurentiz

{"title":"In vitro ovicidal and larvicidal activity of Psidium cattleianum Sabine leaves against gastrointestinal nematodes of naturally infected sheep","authors":"M. Piza, A. Féboli, J. G. Augusto, L. A. Anjos, A. C. Laurentiz, V. Royo, F. Q. Alvarenga, R. S. Laurentiz","doi":"10.17523/bia.2019.v76.e1450","DOIUrl":"https://doi.org/10.17523/bia.2019.v76.e1450","url":null,"abstract":"Gastrointestinal nematodes can affect sheep productivity due severe weight loss, anemia and sequential dead that cause in animals with high level of infection. Infection control is generally performed with synthetics anthelmintic; however, the indiscriminate use of these drugs culminates in the emergence of resistant nematodes. Thus, alternatives to the use of synthetic anthelmintic have been proposed, such as the inclusion of medicinal plants in animal feed. In this context, the objective of the study was evaluate the anthelmintic activity of the leaves of medicinal plant Psidium cattleianum Sabine (araca) through of its hydroalcoholic extract using in vitro assays with eggs and larvae of nematodes obtained from naturally infected donor sheep. The extract showed good in vitro ovicidal and larvicidal activity with IC50 values of 0.55 mg/mL for egg hatching inhibition, 0.20 mg/mL for larval development inhibition and efficiency greater than 80% in inhibition of larval migration in all concentrations evaluated (IC50 < 0.19 mg/mL). Phytochemical analysis detected higher concentrations saponins, flavonoids, cardiac glycosides, anthraquinones, and tannins in the extract. Our results demonstrated that the Psidium cattleianum Sabine leaves exhibits in vitro anthelmintic activity, suggesting that, beyond its other medicinal properties, this plant can also be an ally for gastrointestinal nematodes control in sheep.","PeriodicalId":43616,"journal":{"name":"BOLETIM DE INDUSTRIA ANIMAL","volume":" ","pages":""},"PeriodicalIF":0.1,"publicationDate":"2019-10-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45435984","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: 4

Qualidade da carcaça e da carne de novilhos alimentados com palma forrageira e silagem de sorgo corrigida com ureia e farelo de algodão 用尿素和棉麸改良的饲草棕榈和高粱青贮饲料饲养的牛胴体和肉质

IF 0.1

BOLETIM DE INDUSTRIA ANIMAL Pub Date : 2019-10-11 DOI: 10.17523/bia.2019.v76.e1447

J. C. Silva, A. S. C. Véras, M. A. Ferreira, W. G. Nascimento, I. Ferraz, R. S. Lima, R. A. S. Pessoa

{"title":"Qualidade da carcaça e da carne de novilhos alimentados com palma forrageira e silagem de sorgo corrigida com ureia e farelo de algodão","authors":"J. C. Silva, A. S. C. Véras, M. A. Ferreira, W. G. Nascimento, I. Ferraz, R. S. Lima, R. A. S. Pessoa","doi":"10.17523/bia.2019.v76.e1447","DOIUrl":"https://doi.org/10.17523/bia.2019.v76.e1447","url":null,"abstract":"The objective of this study was to evaluate the carcass traits and meat quality of Girolando steers (5/8 Holstein-Zebu). Eighteen animals with an initial average weight of 320±32 kg and age of 24±2 months were housed in individual pens and assigned to the treatments in a completely randomized design. Initial body weight was used as a covariate in the statistical model. The trial lasted 84 days. The treatments were: 1 - 60% of spineless cactus (SC) + 38% of sorghum silage corrected with urea (SSU) (3% of urea) + 0% of cottonseed meal (CM); 2 - 60% SC + 26.5% SSU (1.5% of urea) + 11.5% CM; 3 - 60% SC + 15% sorghum silage + 23% CM. The treatments had no effect on the carcass traits, except for hindquarter weight which increased with the inclusion of cottonseed meal in the diet. The percentage of muscle, bone and fat in the carcass was not influenced by the treatments. There was no effect of the treatments on pH, cooking loss, water-holding capacity, shear force, or meat color. The addition of sorghum silage corrected with urea and cottonseed meal to spineless cactus does not alter the carcass traits or meat quality of Girolando steers.","PeriodicalId":43616,"journal":{"name":"BOLETIM DE INDUSTRIA ANIMAL","volume":" ","pages":""},"PeriodicalIF":0.1,"publicationDate":"2019-10-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43439960","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

Suplementação energética, protéica ou múltipla para ovinos alimentados com forragem tropical de baixa qualidade 用低质量热带饲料喂养绵羊的能量、蛋白质或多种补充

IF 0.1

BOLETIM DE INDUSTRIA ANIMAL Pub Date : 2019-10-10 DOI: 10.17523/bia.2019.v76.e1448

D. A. G. D. Carvalho, M. L. Portella, L. Menezes, J. Junior, C. A. S. Braga, L. Terres, Juliane Quenoizoré Soares

{"title":"Suplementação energética, protéica ou múltipla para ovinos alimentados com forragem tropical de baixa qualidade","authors":"D. A. G. D. Carvalho, M. L. Portella, L. Menezes, J. Junior, C. A. S. Braga, L. Terres, Juliane Quenoizoré Soares","doi":"10.17523/bia.2019.v76.e1448","DOIUrl":"https://doi.org/10.17523/bia.2019.v76.e1448","url":null,"abstract":"This study aimed to evaluate the effect of protein, multiple, energy or mineral supplementation of sheep fed low-quality tropical forage on digestive, behavioral and intake parameters. The experiment lasted 56 days, divided into four periods of 14 days each. Four lambs, six months of age and with an initial body weight of 20 kg, were used. The animals were allocated to four individual pens equipped with drinking fountains and troughs in a 4 x 4 Latin square design. Fresh Brachiaria brizantha cv. Marandu was used as fodder. Samples of leftovers and forage provided were collected on days 12, 13 and 14. Total fecal collection was done on days 13 and 14 of each experimental period (48 hours). The values of crude protein in the diet consumed and in fecal excretion were, respectively, 4.78, 5.19, 7.18 and 8.44% and 0.326, 0.315, 0.317 and 0.356 g/day for the mineral, energy, multiple and protein supplements. The protein supplement provides an increase in dietary nitrogen and increased fecal excretion, with possible effects on digestion rate and passage of digesta through the digestive tract.","PeriodicalId":43616,"journal":{"name":"BOLETIM DE INDUSTRIA ANIMAL","volume":" ","pages":""},"PeriodicalIF":0.1,"publicationDate":"2019-10-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46804607","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: 4

Blood parameter of Nellore steers submitted to different levels of feed intake 不同采食量水平对耐洛牛血液参数的影响

IF 0.1

BOLETIM DE INDUSTRIA ANIMAL Pub Date : 2019-10-09 DOI: 10.17523/bia.2019.v76.e1449

G. Aferri, J. Negrão, A. Pereira, R. S. Corte, S. Silva, P. R. Leme

{"title":"Blood parameter of Nellore steers submitted to different levels of feed intake","authors":"G. Aferri, J. Negrão, A. Pereira, R. S. Corte, S. Silva, P. R. Leme","doi":"10.17523/bia.2019.v76.e1449","DOIUrl":"https://doi.org/10.17523/bia.2019.v76.e1449","url":null,"abstract":"Blood parameters of 18 Nellore steers submitted to high concentrate diet in two sequential feeding regimes (Phase 1: restriction and Phase 2: ad libitum feed) were evaluated. In the first phase, steers were fed during 56 days in three intake levels of dry matter (ad libitum, 75 g dry matter (DM)/kg metabolic body weight (BW0.75) or 60 g DM/kg BW0.75. In the second phase, from the 57th day of confinement, animals fed 60 g DM/kg BW0.75 and 75 g DM/kg BW0.75 received feed ad libitum until the 136th day. In the 8th, 27th, 55th (first phase), 71st, 84th, 112th and 132nd (second phase day of experimental period, blood samples were collected and insulin-like growth factor I (IGF-I), triiodothyronine (T3), thyroxine (T4), glucose, plasma ureic nitrogen (PUN) and total protein (TP) were determined. In the first phase IGF-I, T4, glucose and total protein concentration was not different among treatments (P>0.05) and there was no interaction between treatment and time (P>0.05). There was an interaction among treatments and time on T3 and plasma ureic nitrogen (P 0.05). For plasma ureic nitrogen concentration there was an interaction among treatments and time (P=0.02). Lower levels of diet intake can be used to improve animal performance in feedlot.","PeriodicalId":43616,"journal":{"name":"BOLETIM DE INDUSTRIA ANIMAL","volume":" ","pages":""},"PeriodicalIF":0.1,"publicationDate":"2019-10-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43323903","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

Caracterização físico-química de silagens de bagaço de uvas tintas e brancas 红葡萄和白葡萄甘蔗渣青贮的物理化学特性

IF 0.1

BOLETIM DE INDUSTRIA ANIMAL Pub Date : 2019-08-02 DOI: 10.17523/BIA.2019.V76.E1443

P. Rosa, Amanda da Silva Xavier, R. C. Chesini, Allan Patrick Timm de Oliveira, Juliana da Silva Camacho, Matheus Ramos Faria, Luiza Padilha Nunes

{"title":"Caracterização físico-química de silagens de bagaço de uvas tintas e brancas","authors":"P. Rosa, Amanda da Silva Xavier, R. C. Chesini, Allan Patrick Timm de Oliveira, Juliana da Silva Camacho, Matheus Ramos Faria, Luiza Padilha Nunes","doi":"10.17523/BIA.2019.V76.E1443","DOIUrl":"https://doi.org/10.17523/BIA.2019.V76.E1443","url":null,"abstract":"The use of grape marc, a co-product of the viticulture industry, presents itself as an alternative to reduce costs with ruminant feed, also helping the environment, besides giving a destination to this material that is discarded by the industry, still helps reduction of methane production by ruminants. The objective of this work was to present physico-chemical results of grape marc silage, with different varieties of red and white grapes. The silage was distributed in two treatments (white and red grapes) with three grape varieties, containing three replicates, totaling 18 silos. The silage process was carried out in pvc microsilows, in a completely randomized subdivision. The bromatological composition of the white and red grape silages was evaluated separately. In the varieties of white grapes studied, the Chardonnay grape presented higher levels of DM (23.23%), OM (92.10%), CP (12.60%), ADF (43.47%) and EE (7,2 %) in relation to the Gewurztramine and Sauvignon Blanc varieties. There were no differences (P <0.05) in the CP, but the pH values were higher (4.10) in the Cabernet Sauvignon variety. The Merlot and Tannat grapes had similar contents (P <0.05) for DM, OM, MM and pH. The white grape marc silages and paints of this study present low DM values resulting in nutritional losses, with medium BP levels when compared to other studies. Although pH values are adequate for good fermentation of the ensiled material, the lignin and fat contents are very high, making this ensiled material with low nutritional value for use in ruminant feed, where further studies should be performed with this co-product.","PeriodicalId":43616,"journal":{"name":"BOLETIM DE INDUSTRIA ANIMAL","volume":" ","pages":""},"PeriodicalIF":0.1,"publicationDate":"2019-08-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42306168","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

Qualidade de hambúrgueres e linguiças feitos com carne de cordeiros alimentados com grãos de girassol e vitamina E 用葵花籽和维生素e喂养的羊肉制成的优质汉堡和香肠

IF 0.1

BOLETIM DE INDUSTRIA ANIMAL Pub Date : 2019-08-02 DOI: 10.17523/BIA.2019.V76.E1442

Fabiana Alves de Almeida, A. G. S. Sobrinho, Viviane Endo, Ana Carolina Columbeli, Natália Ludmila Lins Lima, N. Zeola, L. Cirne

{"title":"Qualidade de hambúrgueres e linguiças feitos com carne de cordeiros alimentados com grãos de girassol e vitamina E","authors":"Fabiana Alves de Almeida, A. G. S. Sobrinho, Viviane Endo, Ana Carolina Columbeli, Natália Ludmila Lins Lima, N. Zeola, L. Cirne","doi":"10.17523/BIA.2019.V76.E1442","DOIUrl":"https://doi.org/10.17523/BIA.2019.V76.E1442","url":null,"abstract":"The objective of this study was to evaluate qualitative aspects of hamburgers and sausages made with meat from less noble cuts of carcasses from lamb fed with sunflower seeds and vitamin E. The processed was prepared using meat from the neck and ribs of 32 Ile de France lambs slaughtered when body weight reached 32 kg. Lambs were divided into four treatment groups of eight animals, receiving different feedings: SC – sugarcane + concentrate; SCS – sugarcane + concentrate with sunflower seeds; SCE – sugarcane + concentrate containing 1000 mg vitamin E/ kg of diet dry matter (DM) and SCSE – sugarcane + concentrate with sunflower seeds and 1000 mg vitamin E kg/ of diet DM. It was observed interaction between sunflower seeds and vitamin E (P<0.05) for pH, color, tenderness and lipid oxidation of burgers and lightness, yellowness, water holding capacity and tenderness of sausages. Additionally, in the sausages, it was found a difference (P<0.05) between treatments for the variables, cooking loss, redness (a*) and lipid oxidation with the inclusion of sunflower seeds, being these two last also influenced by the inclusion of vitamin E in the diet (P<0,05). Burgers made with lamb’s meat fed with control diet (SC) had bigger pH (5.77), and burgers and sausages of the SCSE treatment had the highest a* value 9.40 and 8.79 and lower lipid oxidation, 4.42 and 2.15 mg malonaldehyde/ kg of sample, respectively. Tenderness was bigger (0.57 kgf/ cm2) in the sausages from animals fed with SCS and smaller (0.31 kgf/ cm2) in the sausages made with lamb’s meat of the treatment SCSE. The SCSE’s sausages presented higher PPC (23.03%) than sausages of the animals that were fed only with sun flower seeds (17.21%). Meat from lambs fed with sunflower seeds and vitamin E can be used to make processed products. Hamburger and sausages are good alternatives for sheep meat processing.","PeriodicalId":43616,"journal":{"name":"BOLETIM DE INDUSTRIA ANIMAL","volume":" ","pages":""},"PeriodicalIF":0.1,"publicationDate":"2019-08-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48893921","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

Eficácia do alho como ant-ihelmíntico em ovinos 大蒜作为绵羊驱虫剂的药效

IF 0.1

BOLETIM DE INDUSTRIA ANIMAL Pub Date : 2019-08-01 DOI: 10.17523/BIA.2019.V76.E1446

Juliano Costa dos Santos, C. J. Olivo, M. Severo, F. A. Custiel, M. Somavilla, C. A. Agnolin

{"title":"Eficácia do alho como ant-ihelmíntico em ovinos","authors":"Juliano Costa dos Santos, C. J. Olivo, M. Severo, F. A. Custiel, M. Somavilla, C. A. Agnolin","doi":"10.17523/BIA.2019.V76.E1446","DOIUrl":"https://doi.org/10.17523/BIA.2019.V76.E1446","url":null,"abstract":"The objective of this research was to evaluate the effect of garlic as an anthelmintic in sheep. The efficacy of the treatments was calculated based on the reduction of fecal egg counts (FEC) and coproculture. Eight experiments were conducted, four under feedlot conditions (ewes submitted to treatment repeated four (E1) or two times (E2)); the same was done with lambs (E3-E4). The other four experiments (E5- 8) were carried out using the same strategy, with the animals being kept on pasture. In the feedlot, crossbred sheep were divided into three groups: a negative control; thesecond group was treated with garlic bulb (120 g/100 kg body weight) administered at regular intervals, four or two times (on days 1, 7, 14 and 21 or on days 1 and 14); the third group was submitted to the same treatment but using garlic aqueous extract. Two groups were used for the pasture condition: negative control and treated with garlicaqueous extract. Fecal samples were collected on days 0, 7, 14, 21, and 28. The treatments with garlic bulb or garlic aqueous extract resulted in a reduction of 55 and 72% in FEC in ewes and of 68 and 76% in lambs in the feedlot condition, respectively. The use of the aqueous extract reduced FEC by approximately 80 and 74% in ewes and lambs raised on pasture, respectively. Similar values were observed for the groups treated at regular intervals (four or two times). The larval genera identified in the treatments for the two management strategies were similar.","PeriodicalId":43616,"journal":{"name":"BOLETIM DE INDUSTRIA ANIMAL","volume":" ","pages":""},"PeriodicalIF":0.1,"publicationDate":"2019-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49331432","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

Substituição de vit D3 pelo metabólito de origem vegetal 1,25(oh)2d3 influenciando o desempenho e qualidade óssea em frangos de corte aos 21 dias 植物源代谢产物1,25（oh）2d3替代维生素D3对肉鸡21日龄生产性能和骨质量的影响

IF 0.1

BOLETIM DE INDUSTRIA ANIMAL Pub Date : 2019-07-30 DOI: 10.17523/BIA.2019.V76.E1445

O. S. Alves, Túlio Leite Reis, J. E. Moraes, C. C. Pizzolante, L. Calixto

{"title":"Substituição de vit D3 pelo metabólito de origem vegetal 1,25(oh)2d3 influenciando o desempenho e qualidade óssea em frangos de corte aos 21 dias","authors":"O. S. Alves, Túlio Leite Reis, J. E. Moraes, C. C. Pizzolante, L. Calixto","doi":"10.17523/BIA.2019.V76.E1445","DOIUrl":"https://doi.org/10.17523/BIA.2019.V76.E1445","url":null,"abstract":"The objective of this study was to evaluate the inclusion of 1.25(OH)2D3 as a substitute of vitamin D3 (cholecalciferol) in the vitamin supplement of broiler diets, as well as the influence of this metabolite on performance and bone quality up to 21 days of age. A total of 1.400 male chicks were used. At 7 days of age, the animals were weighed and divided into six experimental treatments, with 6 replicates and 38 birds per replicate. The treatments consisted of maintaining the amount of vitamin D3 for broilers at 100%, 75%, 50%, 25% and 0% plus the addition of a fixed quantity of bioactive vitamin metabolite [1,25(OH)2D3]. As the control treatment, the animals received only vitamin D3 at the recommended dose as the sole source of vitamin D. Data were submitted to analysis of variance using the General Linear Models procedure of the SAS® software. In the case of statistically significant differences, means were compared by the Dunnett test at 5% probability. The mean weight, weight gain and daily weight gain differed significantly (p 0.05) in feed conversion. Bone morphometry was not influenced (p>0.05) by the reduction of vitamin D3 in the vitamin supplement nor by the use of 1.25(OH)2D3. The calcium percentage in tibia ashes was higher (p<0.05) for the treatment with 75% vitamin D3+1.25(OH)2D3 inclusion compared to control by the Dunnett test. The reduction of vitamin D3 up to 25% of the required level in the vitamin supplement, combined with the inclusion of 50 g 1.25(OH)2D3/ton of ration, allows to maintain the performance and bone quality of broilers at 21 days of age. The use of 1.25(OH)2D3 as a single source of vitamin D at the amount tested compromised performance and worsened bone quality as assessed by ash percentage and bone resistance to fracture.","PeriodicalId":43616,"journal":{"name":"BOLETIM DE INDUSTRIA ANIMAL","volume":" ","pages":""},"PeriodicalIF":0.1,"publicationDate":"2019-07-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47495279","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

Produção e morfogênese de capim BRS Tamani sob diferentes doses de nitrogênio e intensidades de desfolhação 不同施氮量和落叶强度下塔马尼草的生产和形态发生

IF 0.1

BOLETIM DE INDUSTRIA ANIMAL Pub Date : 2019-07-29 DOI: 10.17523/BIA.2019.V76.E1441

J. A. Martuscello, J. F. Rios, Mariane Rodrigues Ferreira, Juliana Aparecida de Assis, T. Braz, Daniel de Noronha Figueiredo Vieira da Cunha

{"title":"Produção e morfogênese de capim BRS Tamani sob diferentes doses de nitrogênio e intensidades de desfolhação","authors":"J. A. Martuscello, J. F. Rios, Mariane Rodrigues Ferreira, Juliana Aparecida de Assis, T. Braz, Daniel de Noronha Figueiredo Vieira da Cunha","doi":"10.17523/BIA.2019.V76.E1441","DOIUrl":"https://doi.org/10.17523/BIA.2019.V76.E1441","url":null,"abstract":"The objective of this work was to evaluate the forage production, and the morphogenic and structural characteristics of Panicum maximum cv. BRS Tamani, as a function of nitrogen doses and cut intensities. The experiment was conducted under greenhouse conditions. Four nitrogen doses (0, 50, 100 and 200 mg/dm³) and two cut intensities (5 cm and 15 cm) were evaluated in a 4x2 factorial in a completely randomized design with four replicates. The leaf elongation rate of the Tamani grass was influenced by nitrogen fertilization, with a linear and positive response. No effect of defoliation intensity was observed for this variable. The leaf life had a negative linear influence of the nitrogen fertilization without effect of the defoliation intensity. The morphogenic characteristics of the Tamani grass are influenced by nitrogen fertilization. Plants with greater nitrogen supply lengthen more leaves, with a shorter appearance interval. In absence of nitrogen fertilization the BRS Tamani grass keeps the leaves alive longer and in smaller numbers. More intensely cut BRS Tamani grass plants have a greater number of tillers. Nitrogen fertilization increased forage yield of BRS tamani grass, with no effect on root production. Plants submitted to more intense cuts (5 cm) presented greater dry matter production of the aerial part.","PeriodicalId":43616,"journal":{"name":"BOLETIM DE INDUSTRIA ANIMAL","volume":" ","pages":""},"PeriodicalIF":0.1,"publicationDate":"2019-07-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45858574","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: 24