Internal Temperature of Girolando (Holstein×Gir) heifers in integrated crop, livestock (ICLS) and forestry (ICLFS) systems.

The objective of this work was to evaluate the internal temperature (IT) of Girolando heifers in integrated crop, livestock (ICLS) and forestry (ICLFS) systems. Trial was carried out at experimental field of Embrapa Rondônia, Porto Velho, Rondônia, Brazil

Caracterização física e físico-química de duas variedades de taiobas oriundas da Terra Indígena Kaxinawá de Nova Olinda, Feijó/Acre.

Diante da importância da busca por novas matérias-primas com características que atendam às exigências de um mercado em ascensão, este trabalho teve por objetivos caracterizar dois tipos de taioba denominados Kapanawa e Kistuku, oriundas da Terra Indígena Kaxinawa de Nova Olinda (TIKNO), coletadas na safra 2015/2016, Feijó/AC quanto às características físicas (comprimento X largura, cor da casca) e físico-químicas (umidade, cinzas, proteínas, lipídeos, fibras brutas, carboidratos, aw)

Mini-Percoll processing of domestic ruminant frozen-thawed semen dispenses the use of heparin in capacitating medium.

Sperm capacitation is a prerequisite for mammal successful fertilization. Although usually a capacitating substance such as heparin is used during sheep in vitro fertilization, evidences suggest that the cryopreservation process and Percoll technique could induce spontaneous capacitation. This study aimed to compare ovine, caprine and bovine frozen-thawed sperm after mini-Percoll processing on sperm parameters, receiving or not heparin supplementation. In conclusion, frozen-thawed ovine, caprine and bovine spermatozoa processed with mini-Percoll behave similarly regarding to capacitation status and does not require heparin supplementation during in vitro incubation to achieve capacitation. [Processamento pela técnica de mini-Percoll em sêmen congelado/descongelado de ruminantes domésticos dispensa o uso da heparina em meio capacitante].Edição dos anais do XXII Congresso Brasileiro de Reprodução Animal (CBRA), Santos, SP, Brasil, maio 2017

Tendências e perspectivas da tecnologia da informação aplicada à agricultura.

Serviços fundamentais que se baseiam na TI. A TI na infraestrutura global de informação. Pesquisa, Desenvolvimento e Inovação - PD&I em tecnologia da informação. Papel da TI na pesquisa agropecuária. Tendências de produção científica de TI aplicada à agricultura. Considerações finais

Mini-percoll technique induces Similar capacitation features in domestic ruminant frozen-thawed spermatozoa regardless of the presence of heparin.

Background: Sperm capacitation is a process consists of a series of functional, biochemical, and biophysical modifications that render the ejaculated sperm competent for oocyte fertilization. Secreted by the female reproductive tract epithelium, heparin promotes capacitation by binding to and removing seminal plasma proteins, which are adsorbed to the sperm PM and would inhibit capacitation. There is substantial evidence that cryopreservation promotes capacitation-like changes in bull, ram and buck sperm. Our general hypotheses were: (a) cryopreserved ram sperm suffer capacitation more quickly than buck and bull sperm under the same conditions; (b) the capacitation status of ruminant cryopreserved sperm is similar whether or not heparin is present after the mini-Percoll technique; and (c) ruminant frozen-thawed sperm selected by mini-Percoll and incubated within media without heparin supplementation is not impaired in terms of capacitation status and sperm agglutination. This study aimed to compare sperm parameters of ovine, caprine, and bovine frozen-thawed sperm after mini-Percoll processing followed by incubation with or without heparin supplementation. Materials, Methods & Results: Commercial semen of all species were used. Sperm samples were selected by mini-Percoll and supplemented (or not) with heparin within an incubation medium for 18 h. Sperm kinematics (CASA system analyzes), capacitation status (CTC staining) and sperm agglutination were evaluated after thawing, mini-Percoll, 1.5 h, 3 h, 6 h and 18 h. In comparison with post-thawing analysis, ovine species demonstrated a reduction (P 0.05). In caprine and bovine species, a lower (P < 0.05) rate of sperm agglutination was observed in the presence of heparin at 18 h of incubation. In the absence of heparin, ovine samples showed a higher (P < 0.05) agglutination rate compared to the bovine species after long incubation period. Discussion: The present study compared sperm parameters (sperm kinematics, agglutination rate and capacitation status) of ruminant frozen-thawed sperm after mini-Percoll selection followed by in vitro incubation with or without heparin supplementation. In this study, it was observed the same rate of capacitated cells after the sperm selection (min-Percoll) between ruminant species. This indicate that the capacitation process occurs similarly between ruminant species, refuting the first hypothesis of this study. The presence of heparin did not influence the capacitation status of ruminant frozen-thawed sperm after mini-Percoll selection, it demonstrates that the second hypothesis was supported by this study making more economic and practical the use of ruminant frozen-thawed semen. The absence of heparin in the incubation medium did not harmed the capacitation status and sperm agglutination of ruminant frozen-thawed sperm. This supported the third hypothesis of the current study and indicate that the use of mini-Percoll technique regardless the presence of heparin could be a useful alternative for the preparation of ruminant frozen-thawed sperm. In conclusion, the capacitation status of ruminant frozen-thawed sperm is similar whether or not heparin is present after the mini-Percoll technique

Qualidade de macarrão tipo espaguete à base de farinhas de banana verde com e sem casca e amendoim integral.

A farinha de banana verde encontra ampla aplicação na indústria de alimentos, principalmente na elaboração de produtos de panificação, massas tipo espaguete, produtos dietéticos e alimentos infantis, sendo uma fonte de sais minerais, tais como potássio, cálcio, ferro, magnésio. Este trabalho teve como objetivo desenvolver uma alternativa de massa de macarrão utilizando-se farinhas de banana verde com e sem casca e amendoim

Produtividade de castanha e infestação da traça-da-castanha Anacampsis phytomiella Busck (Lepidoptera: Gelechiidae) em cajueiro-anão, Pacajus - CE.

Anacammpsis phytomiella, conhecida como traça-da-castanha, é praga-chave da cultura do cajueiro, pois se alimenta do seu principal produto, a amêndoa da castanha-de-caju. O trabalho teve como objetivo avaliar clones comerciais e progênies quanto às variáveis produtividade, peso médio de castanha e percentagem de castanha furada pelo ataque da praga.bitstream/item/198462/1/BPD19006.pd

Lentivirus vectors fail to deliver transgenes into bovine zygotes after co-incubation with sperm during in vitro fertilization.

Communication