Importance of biometric aspects in breeding selection: review

Mendonça, Karolayne Alves; Figueiredo, Jessica Rosa; Santos, Lorrany de Melo; Silva, Maisy Cordeiro da; Cruz, Daniela Menezes da; Lima, Rodrigo Cruz de Freitas; Branco, Marlon de Araújo Castelo; Gomes, Leopoldina Almeida; Nascimento, I. M. R. do; Simplício, Kalina Mária de Medeiros Gomes; Lima, Paula Regina Barros de; Branco, Yndyra Nayan Teixeira Carvalho Castelo

doi:10.31533/pubvet.v13n12a475.1-8

Cited by 3 publications

(4 citation statements)

References 29 publications

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“…Selection based on scrotal circumference is related to reproductive and ponderal traits in males due to their high heritability. In genetic improvement programs, it is essential to carry out a correct and thorough andrological evaluation of these animals (Mendonça et al, 2019). Ultrasonography (USG) is a non-invasive technique that allows real-time image visualization, making it possible to monitor the functionality and morphology of the organ and has been widely used as a tool that assists in reproductive management (Balaro, 2019).…”

Section: Multidisciplinary Perspectives: Integrating Knowledge Use Of...mentioning

confidence: 99%

“…The use of this technique is an effective method in the selection of broodstock, since it is possible to predict the sperm production of the animal by measuring the intensity of testicular pixels (TPI). Some studies report that IPT can be used to assess age at puberty, because it increases between 6 and 13 months of age, this fact may be related to the proliferation of cells in the testicular parenchyma that later originate spermatozoa (Martinez, 2018Mendonça et al, 2019.…”

Section: Multidisciplinary Perspectives: Integrating Knowledge Use Of...mentioning

confidence: 99%

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Use of ultrasonography as an auxiliary predictive method in the reproductive evaluation of bulls

Silva,

Fernandes,

Fernandes

et al. 2024

Multidisciplinary Perspectives: Integrating Knowledge

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Brazil is the leader in beef exports, being one of the largest producers in the world, in addition to occupying the third position of the world's largest milk producer. To obtain such status, it is necessary to make a large investment in the area of animal production, especially with regard to genetics, nutrition and health. The genetic improvement of breeding stock is one of the most important and necessary factors, because it directly contributes to the efficiency of production and reproduction of animals. Currently, the selection of animals aiming at sexual precocity is considered one of the strategies with a direct impact on the profitability of cattle farming. Methodologies for the analysis of reproductive characteristics have always been renewed, and among them, ultrasonography was considered a safe, non-invasive technique that allows monitoring the morphology and functionality through the echogenicity presented, without causing any risk to the integrity of the bull's reproductive system. This technique can be used as an indicator of sexual precocity, since pubertal animals appear to have a more hyperechoic testicular parenchyma when compared to prepubertal animals of the same age, and this fact can be explained by the changes that occur in the testicular parenchyma due to the onset of puberty and spermatogenesis. The use of ultrasonography is of paramount importance as a complementary diagnostic method in the andrological examination, as it facilitates the choice with greater precision and precocity of bulls that are already suitable for reproduction.

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Section: Multidisciplinary Perspectives: Integrating Knowledge Use Of...mentioning

confidence: 99%

Section: Multidisciplinary Perspectives: Integrating Knowledge Use Of...mentioning

confidence: 99%

Use of ultrasonography as an auxiliary predictive method in the reproductive evaluation of bulls

Silva,

Fernandes,

Fernandes

et al. 2024

Multidisciplinary Perspectives: Integrating Knowledge

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“…A produtividade em um rebanho de cria em empreendimentos pecuários de corte está totalmente atrelada a eficiência reprodutiva (Baruselli et al, 2021;Mendonça et al, 2019;Santos & Sá Filho, 2006). No entanto, um enorme desafio para esse sistema é a antecipação do primeiro cio pós-parto, estratégias como protocolos de Inseminação Artificial em Tempo Fixo (IATF) à base de benzoato de estradiol (BE) e progesterona (P4) tem apresentado resultados satisfatórios quanto a antecipação do primeiro cio pósparto e posterior gestação dessas fêmeas, logo é de grande valia aprimorar ainda mais esses protocolos buscando sempre melhores resultados (Buralli et al, 2019;Campos et al, 2016;.…”

Section: Introductionunclassified

Use of long-acting injectable progesterone in fixed-time artificial insemination protocols

Macedo,

Moya

2024

Pubvet

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Knowledge of the physiology of the estrous cycle in bovine females has been extremely important in monitoring and improving strategies in the use of drugs to control their estrous cycle and follicular development, providing better recruitment, selection, growth, and maturation until ovulation, with strategies to further optimize estrus and ovulation synchronization protocols. The objective of this work is to carry out a bibliographical analysis comparing the use of slow-release progesterone devices in relation to the use of long-acting injectable progesterone, taking into account their advantages, disadvantages and characteristics within a fixed-time artificial insemination program.

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“…O estudo das características anatômicas e morfológicas do aparelho reprodutor do macho bovino tem como objetivo criar parâmetros anatômicos entre raças, estabelecer critérios na seleção de touros e contribuir na prevenção de doenças reprodutivas. Essa é uma linha de pesquisa que vem ganhando força através da publicação de artigos relacionados à morfometria de diferentes órgãos do animal (MENDONÇA et al, 2019).…”

Section: Introductionunclassified

Aspectos Morfológicos Da Genitália Externa De Touros Associados À Impotência Coeundi

Freitas¹,

Rabelo²,

Assis³

et al. 2021

Enci Bio

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The bull is essential for the realization of natural breeding, which is still the majority in Brazilian livestock, and for the genetic improvement of its descendants. The bull's external genitalia are made up of the foreskin and penis and its vital function is to effect copulation. However, these organs are vulnerable and susceptible to injury due to variation in morphological characteristics, such as the width of the preputial ostium orifice, the pendulum and the length of the preputial sheath. Therefore, the aim of this study was to carry out a literature review of the morphological aspects of the external genitalia of bulls associated with coeundi impotence due to preputial diseases. The prepuce or preputial sheath consists of the external (LPE) and internal (LPI) preputial leaflets. The first is formed by a fold of mobile skin attached to the belly of the abdomen. The IPL or preputial mucosa is characterized as a tubular organ that houses the free part of the penis. The preputial ostium is the opening through which the exteriorization of the penis takes place. The foreskin has sebaceous glands that produce a lipid secretion, which makes up the smegma, and which is important in prepucial and penile health. In this study, basic research was used as an analysis tool, according to veterinary anatomical nomenclature, on aspects of the anatomy and morphology of the external genitalia, specifically the prepuce, the free part of the penis and the preputial sebaceous glands, points rarely mentioned in the specialized literature, which demonstrates the importance of this line of study.

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Importance of biometric aspects in breeding selection: review

Cited by 3 publications

References 29 publications

Use of ultrasonography as an auxiliary predictive method in the reproductive evaluation of bulls

Use of ultrasonography as an auxiliary predictive method in the reproductive evaluation of bulls

Use of long-acting injectable progesterone in fixed-time artificial insemination protocols

Aspectos Morfológicos Da Genitália Externa De Touros Associados À Impotência Coeundi

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