Navegando por Assunto "Caprinos - Reprodução"

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Avaliação de características corporais e de parâmetros reprodutivos em caprinos criados no município de Parnamirim - Pernambuco (PE)
(2018) Bezerra, Ethiana Freire; Martins, Jorge André Matias; http://lattes.cnpq.br/9617318260953422; http://lattes.cnpq.br/8158665131021236
The objectives of this study were to evaluate the body and testicle traits, and seminal quality of male goats reared in Parnamirim, as well as their associations with climatic, physiological and morphological parameters. The averages of air temperature, relative air humidity and temperature and humidity index (THI) for June were consistent for the rainy season of the region. At the day of data collection, air temperature and THI increased throughout the day, as the relative humidity of the air decreased. Body measurements and scrotal circumference are within the expected pattern for species, breeds and ages of bucks. One could observe that scrotal circumference was positively correlated with body length, height of the withers, height of the croup, thoracic perimeter, live weight, testicular width, testicular volume, sperm concentration, ejaculate volume, mass motility and percentage of mobile spermatozoa. Respiratoryand cardiac frequencies, as well as the rectal, body surface and scrotal surface temperatures increased due to the increase in air temperature during the day of collection. Of the animals evaluated, only two of the Anglo Nubiana bucks presented the ejaculate volume of 0.1 ml. Three males had acceptable sperm concentrations, while two males were within the standard for the motile sperm percentage. Five bucks were fitted in relation to individual progressive motility. Air temperature was positively correlated with respiratory rate, rectal and body surface temperatures, and was negatively correlated with the volume of ejaculate and the percentage of motile spermatozoa. Regarding major defects, the most frequent findings in the ejaculates were dag tail, followed by teratological forms and cuneiform head. The most frequent minor defects were folded tail, distal cytoplasmic droplet and normal detached head. Therefore, the quantitative and qualitative characteristics of the semen showed that, although the goats arepure of origin (PO) and present body conformation for the breed, the breeding soundness evaluation it is crucial to know if the males are able for maximum productive and reproductive performances. All the parameters evaluated are useful for choosing suitable breeders for breeding seasons, aiming to increase reproductive efficiency and animal welfare.
Parâmetros reprodutivos do rebanho caprino da raça Saanen criados no Departamento de Zootecnia /UFRPE-SEDE
(2018-08-15) Pimentel, Rebeca de Souza; Souza, Andreia Fernandes de; http://lattes.cnpq.br/6354486109796073; http://lattes.cnpq.br/5869187631835116
The objective of this study was to analyze the reproductive parameters of the goat herd of the Saanen breed raised in the Department of Animal Science / UFRPE-SEDE, in relation to the reproductive and productive efficiency of the short protocol of induction of estrus, strategically used in order to increase the production potential of the animals throughout their reproductive life. From the semiological evaluation, 34 females were classified according to body condition score (ECC) and submitted to the intensive regimen with diet based on 200 g concentrate / day, in addition to tifton hay, water and mineral salt ad libitum. Females were induced to estrus using short protocol of estrus induction / synchronization, for which a CIDR containing 0.33 g of progesterone and 0.3 mL of Cloprostenol Sodium (CIOSIN) was introduced into the female vagina on day zero (D0) The device remained in the cranial portion of the vagina for five days (D5), was given intramuscularly. and 200uI of equine chorionic gonadotrophin (eCG; Novormon 5000) was administered intramuscularly. The detection of estrus was performed through the ruffling and the covers through controlled mount. The diagnosis of gestation was performed 30 days after the coverage. Regarding estrus observation, 97.06% (33/34) of the females went into estrus. Regarding the estrus observation time (24 to 72 hours after implant removal), 64.70% (22/34), 17.64% (6/34), 14.70% (5.34) females presented estrus in 24, 36 and 48 hours, respectively. Regarding the rate of conception, 25 of them engaged, with a percentage of 73.53% conception. In relation to the birth rate it was 96%, with the total of 49 kids born. The mean birth weight of the offspring (two animals / parturition), mean weight 3.4 kg, already (three animals / parturition) presented a mean weight of 2.7 kg. The mean weight at 45 days,10.2 kg (two animals / childbirth), already (three animals / childbirth) had an average weight equal to 8.3 kg. On the other hand, the prolificacy rate for male exposed goat, which relates the number of goats born per female / year, showed an average of 1.44 goats / female / year, with reproductive efficiency of 117,65% or 1, 17. The use of short induction protocols associated with herd management tools, among them the body condition score, weighing and zootechnical control were fundamental for the development of the herd.
Sistemas de manejo e eficiência reprodutiva em caprinos da raça Moxotó (Capra hircus L.): um estudo comparativo
(1986) Azevedo Neto, Jeferson; Lima, Claudeci Tadeu Ferreira de
Foram utilizados 40 matrizes e quatro reprodutores caprinos da raça Moxotó, em pesquisa realizada na Fazenda Jatobá, Núcleo de Pesquisa de Desenvolvimento do Trópico, semiárido (NUPEARIO) Patos, PB, pertencente a Universidade Federal da Paraíba (UFPB) (Campus VII). Realizou-se um estudo comparativo entre dois sistemas de manejo, o tradicional e o melhorado, e o desempenho de cada um tomando-se como base parâmetros reprodutivos. O sistema tradicional consistia das práticas de rotinas adotadas pelos criadores da região, e o melhorado obedecia às normas técnicas do sistema de reprodução para caprinos da Paraíba (EMBRATER 1 EMBRAPA). Os dados obtidos revelaram uma significativa vantagem do sistema melhorado sobre o tradicional.