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Desempenho reprodutivo de coelhas submetidas a diferentes níveis de energia digestível nas dietas e idades de desmama de suas ninhadas - DOI: 10.4025/actascianimsci.v31i2.6619 Animal Sciences
Silva, Waldirene Rossi da; UEM; Scapinello, Cláudio; UEM; Moraes, Gentil Vanini de; UEM; Martins, Elias Nunes; UEM; Faria, Haroldo Garcia de; UEM; Ferreira, Walter Motta; UFMG.
Foram utilizadas 240 ninhadas oriundas de 80 matrizes NZB, nulíparas, durante três ciclos reprodutivos, submetidas a um ritmo de reprodução de 42 dias, distribuídas em um delineamento inteiramente casualizado, em esquema fatorial 2 x 2 x 3 (2.600 e 2.800 kcal ED kg-1 de ração versus desmama aos 28 e 35 dias versus três ciclos reprodutivos). O nível de ED nas rações não afetou o peso das matrizes na desmama de seus láparos e as taxas de fertilidade, independente do ciclo reprodutivo. A melhor condição corporal nos três ciclos das matrizes que desmamaram seus láparos aos 28 dias, permitiu taxas de fertilidade mais altas durante todo o período experimental. À exceção do tamanho da ninhada ao nascer, que foi menor no primeiro parto, o tamanho da ninhada aos 21...
Tipo: Pesquisa de campo Palavras-chave: Produção Animal; Nutrição de não-ruminantes desempenho de láparos; Tamanho da ninhada; Condição corporal da matriz; Taxa de mortalidade; Fertilidade 5.04.05.00-4 litter performance; Litter size; Corporal condition of does; Mortality; Fertility.
Ano: 2009 URL: http://periodicos.uem.br/ojs/index.php/ActaSciAnimSci/article/view/6619
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Desempenho reprodutivo de fêmeas suínas inseminadas pela técnica intra-uterina ou tradicional. Repositório Alice
DALLANORA, D.; MEZALIRA, A.; KATZER, L.H.; BERNARDI, M.L.; BORTOLOZZO, F.P.; WENTZ, I..
O desempenho reprodutivo de fêmeas suínas foi avaliado com o objetivo de comparar duas técnicas de inseminação. Foram inseminadas, em delineamento inteiramente casualizado, 608 fêmeas com ordem de parto de dois a quatro, em dois tratamentos: inseminação intra-uterina com 1,5 bilhão de espermatozóides em 60 mL e inseminação tradicional, com 3 bilhões em 90 mL. Foi possível introduzir o cateter intra-uterino em 97,4% das fêmeas e houve sangramento em 9,5%, as quais apresentaram retorno ao estro superior (p<0,05). O porcentual de volume refluído até duas horas após a inseminação foi maior (p<0,05) na inseminação intra-uterina do que na tradicional, enquanto o porcentual de espermatozóides refluídos foi semelhante. Não houve influência do porcentual de...
Tipo: Artigo em periódico indexado (ALICE) Palavras-chave: Número de espermatozóides; Parto; Refluxo de sêmen; Reprodução; Tamanho da leitegada; Taxa de prenhez; Sperm number; Farrowing; Semen backflow; Reproduction; Litter size; Pregnancy rate.
Ano: 2004 URL: http://www.alice.cnptia.embrapa.br/handle/doc/112518
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Differential expression of genes in follicular cells of swines R. Bras. Zootec.
Miranda-Furtado,Cristiana Libardi; Silva,Priscila Vendramini; Guimarães,Marta Fonseca Martins; Serão,Nicola Vergara Lopes; Guimarães,José Domingos; Guimarães,Simone Eliza Facioni.
The main purpose of the present study was to identify for candidate genes related to ovulation in swines. To do so, it was investigated in ovarian follicular cells through quantitative real-time PCR the differential expression of the following genes: steroidogenic acute regulator (STAR), GATA-binding protein 4 (GATA), prostaglandin F2α (PGF2α), progesterone receptor (P4R), follicle-stimulating hormone receptor (FSHR), and cytochrome P450 aromatase (CYP19). These genes encode hormone receptors (FSHR and P4R), hormone (PGF2α), steroidogenic proteins (STAR and CYP19) and transcription factor (GATA). Folicular cells were collected from sows with high and low number of piglets/litters during the follicular phase of the estrus cycle. There was difference in...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Candidate gene; Litter size; Ovulation rate; Pig production; Quantitative real-time PCR.
Ano: 2010 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982010000500012
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Dimorfismo sexual y ciclo reproductivo de la lagartija espinosa arbórea Sceloporus formosus Wiegmann (Squamata: Phrynosomatidae) de la zona central del estado de Oaxaca, México RChHN
RAMÍREZ-BAUTISTA,AURELIO; PAVÓN,NUMA P.
It is well known that geographic variation oceurs in life history characteristics among populations of lizards. Variations in life histories found in some studies are possibly adaptations to environmental pressures. In southwestern México, the reproductive characteristics of the endemic species Sceloporus formosus have been poorly studied throughout its geographic range. We used specimens from scientific collections to describe male and female reproductive eyeles and sexual dimorphism of S. formosus. Other viviparous Sceloporus from high elevations show sexual dimorphism, with males being larger in many morphological characteristics than females. We therefore expected that S. formosus would show sexual dimorphism. However, we found no sexual dimorphism....
Tipo: Journal article Palavras-chave: Litter size; Reproductive eyeles; Reproductive strategy; Tropical lizards.
Ano: 2009 URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0716-078X2009000400009
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Direct responses to six generations of selection for ovulation rate or prenatal survival in Large White pigs Inra
Rosendo; DRUET, T.; Gogué, J.M.; BIDANEL, J.P.; INRA, Institut National de la Recherche Agronomique (FRA).
Tipo: Journal Article Palavras-chave: Litter size; Pig; Ovulation rate; Prolificacy.
Ano: 2007 URL: http://www.prodinra.inra.fr/prodinra/pinra/doc.xsp?id=PROD2007b8e121e8&uri=/notices/prodinra1/2011/02/
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Effect of body development from first insemination to first weaning on performance and culling until the third farrowing of Landrace x Large White swine females Arq. Bras. Med. Vet. Zootec.
Lesskiu,P.E.; Bernardi,M.L.; Wentz,I.; Bortolozzo,F.P..
The aim of this study was to verify the association of sow body weight development until the 1st weaning with reproductive performance, piglet production and culling rate until the 3rd farrowing in 196 primiparous sows using logistic regression models. Each 10kg increase in weight gain in the 1stpregnancy (OR= 0.63), weight at 1st farrowing (OR= 0.70), weight at the 1st weaning (OR= 0.73) or weight gain from the 1startificial insemination (AI) to the 1st weaning (OR= 0.67) decreased the percentage of primiparous sows with long weaning-to-oestrus interval - WOI (>5 days). An increasing lactation length and an increase in the number of weaned piglets were responsible for respectively decreasing (OR= 0.77-0.80, per day of lactation) and increasing (OR=...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Sows; Body weight; Litter size; Reproductive performance; Retention rate.
Ano: 2015 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-09352015000200465
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Hyperthelie, Wurfgröße und Trächtigkeitsdauer bei der Unterfamilie Tenrecinae Cabrera, 1925 (Mammalia: Insectivora: Tenrecidae), nebst Bemerkungen zur Längsstreifung der Gattung Hemicentetes Naturalis
Poduschka, Walter.
In a comparison of basic reproductive variables (number of teats, litter size, and duration of pregnancy) in the Madagascan Tenrecinae, some striking features (hyperthelia, litter size) are observed in Tenrec ecaudatus Lacépède, 1799 and the genus Hemicentetes Mivart, 1871. These variations are compared to Setifer setosus Froriep, 1806 and Echinops telfairi Martin, 1838. Tenrec ecaudatus gives birth to litters at intervals shorter than what was once believed to be the duration of pregnancy. This could be due either to superfetation, or to giving birth to one litter in two or more installments. The longitudinal stripe pattern of the genus Hemicentetes is interpreted as a mimicry of the sympatric, equally striped, juvenile Tenrec ecaudatus. The latter...
Tipo: Article / Letter to the editor Palavras-chave: Insectivora; Tenrecidae; Hyperthelia; Reproduction; Litter size; Pregnancy; Mimicry.
Ano: 1996 URL: http://www.repository.naturalis.nl/record/504596
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Identification of informative performance traits in swine using principal component analysis Arq. Bras. Med. Vet. Zootec.
Barbosa,L.; Lopes,P.S.; Regazzi,A.J.; Guimarães,S.E.F.; Torres,R.A..
Using principal component analysis, records of 435 animals from an F2 swine population were used to identity independent and informative variables of economically important performance. The following performance traits were recorded: litter size at birth (BL), litter size at weaning (WL), teat number (TN), birth weight (BW), weight at 21 (W21), 42 (W42), 63 (W63) and 77 (W77) days of age, average daily gain (ADG), feed intake (FI) and feed:gain ratio (FGR) from 77 to 105 days of age. Six principal components expressed variation lower than 0.7 (eigen values lower than 0.7) suggesting that six variables could be discarded with little information loss. The discarded variables present significant simple linear correlation with the retained variables. Retaining...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Swine; Multivariate analysis; Correlation; Discard; Growth; Litter size; Performance.
Ano: 2005 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-09352005000600016
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MORBIDITY/MORTALITY AND HEALTH MANAGEMENT OF SWINE IN THE UNITED STATES AgEcon
Bush, Eric J..
A national survey on swine health was conducted by the National Animal Health Monitoring System ( NAHMS ) from December 1989 through January 1991. The survey sample was designed in collaboration with the National Agricultural Statistics Service (NASS ) in order to provide inferences about the nation's hog population, 95 percent of which was represented. The program consisted of two parts: the first was a general farm management and policy questionnaire that was completed by 1,661 producers. The second part of the program was a monitoring phase that took place over a three-month period for each of 712 participating producers. Per litter estimates for the national population showed an average of 9.9 piglets born alive and 8.4 weaned. Estimates attributed 57...
Tipo: Report Palavras-chave: NAHMS; Swine; Monitoring; Epidemiology; Production; Morbidity; Mortality; Births; Litter size; Prevention; Disease; Docking; Teeth clipping; Vaccination; Injection; Antibiotics; Water quality; Livestock Production/Industries.
Ano: 1992 URL: http://purl.umn.edu/32761
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Notes on gestation periods and litter size in the arenicolous buthid scorpion Leiurus quinquestriatus (Ehrenberg, 1828) (Scorpiones: Buthidae) J. Venom. Anim. Toxins incl. Trop. Dis.
Ross,LK.
The following notes on gestation periods and litter size in seven specimens of Leiurus quinquestriatus are presented as observational data. Specimens of Leiurus quinquestriatus from southern Egypt and southern Israel were mated in the laboratory during 2007; afterwards, gestation periods and litter sizes of all females were recorded. Previous studies on this species reported that the gestation period ranged from 150 to 155 days and that litter size was between 12 and 99 offspring. In the present study, gestation periods in specimens from both geographic regions varied from 155 to 227 days and litter sizes were between 35 and 87 offspring. The current contribution expands on previously published data on gestation periods and supports previously reported...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Scorpions; Buthidae; Leiurus quinquestriatus; Gestation period; Litter size.
Ano: 2009 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1678-91992009000200015
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Produtividade de ovelhas localmente adaptadas do nascimento ao desmame. Repositório Alice
PEREIRA, P. H. R..
Resumo: A prolificidade é uma característica da matriz comumente associada à produtividade em ovelhas. O objetivo do presente trabalho foi avaliar o efeito do alelo polimórfico FecGE sobre características produtivas em ovelhas das raças Morada Nova e Santa Inês. Animais (n=418), pertencentes a dois rebanhos Santa Inês e um Morada Nova foram genotipados utilizando sequenciamento Sanger. Dados armazenados no SGR da Embrapa Caprinos e Ovinos foram utilizados no cáculo das variáveis a estudar (PTCN, PTCD, TXN e TXD). O modelo estatístico na ANOVA considerou o ajuste dos pesos dos animais para os efeitos de rebanho, ano de nascimento, mês da pesagem, manejo da cria, ordem de parto da mãe, sexo da cria e classe de grupo de crias no mesmo parto ou interação do...
Tipo: Tese/dissertação (ALICE) Palavras-chave: Eficiência produtiva; Prolificidade; Raça localmente adaptada; Habilidade materna; Productive efficiency; Maternal ability; Prolificity; Locally adapted breeds; Ovino; Produção Animal; Cordeiro; Sheep; Litter size; Animal production; Lambs.
Ano: 2019 URL: http://www.alice.cnptia.embrapa.br/alice/handle/doc/1112295
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Reproductive biology of the coypu, Myocastor coypus (Rodentia: Myocastoridae) in western Japan Rev. Bras. Zool.
Runami,Iori; Gunji,Yousuke; Hishinuma,Mitsugu; Nagano,Masashi; Takada,Tatsuyuki; Higaki,Shogo.
We describe the reproductive biology of the coypu, Myocastor coypus (Molina, 1782), in western Japan, as an attempt to contribute to an efficient population control program of the coypu population. A total of 212 specimens (113 males and 99 females) were collected in the Tottori prefecture from February 2010 to January 2012. From the age estimation based on body weight and molar eruption pattern, we determined that both males and females reach sexual maturity at 4-6 months of age. Of the 72 mature females examined, 60 (83.3%) were pregnant, with a mean litter size of 6.5 ± 2.4 (mean ± SE). The onset of sexual maturity in the western Japanese population was relatively earlier when compared with indigenous and other introduced populations. Furthermore, the...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Litter size; Pregnancy rate; Sexual maturity.
Ano: 2013 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1984-46702013000200002
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The association of two single nucleotide polymorphisms (SNPs) in growth hormone (GH) gene with litter size and superovulation response in goat-breeds Genet. Mol. Biol.
Zhang,Chunyan; Liu,Yun; Huang,Kunkun; Zeng,Wenbing; Xu,Deqing; Wen,Qunying; Yang,Liguo.
Two active mutations (A 781 G and A 1575 G) in growth hormone (GH) gene, and their associations with litter size (LS), were investigated in both a high prolificacy (Matou, n = 182) and a low prolificacy breed (Boer, n = 352) by using the PCR-RFLP method. Superovulation experiments were designed in 57 dams, in order to evaluate the effect of different genotypes of the GH gene on superovulation response. Two genotypes (AA and AB, CC and CD) in each mutation were detected in these two goat breeds. Neither BB nor DD homozygous genotypes were observed. The genotypic frequencies of AB and CC were significantly higher than those of AA and CD. In the third parity, Matou dams with AB or CC genotypes had significantly larger litter sizes than those with AA and CD (p...
Tipo: Info:eu-repo/semantics/article Palavras-chave: DNA polymorphism; Growth hormone (GH) gene; Litter size; Superovulation response; Goat.
Ano: 2011 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572011000100010
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การประมาณค่าพารามิเตอร์ทางพันธุกรรมของลักษณะขนาดครอก ในลำดับครอกที่ต่างกันในแม่สุกรลูกผสมลาร์จไวท์และแลนด์เรซ Thai Agricultural
Alongkorn Kongcharoen; Wanee Chaiwatanasin; Srisuwan Chomchai.
Objectives of this study were to estimate genetic parameters of number of born alive (NBA) in different parities and to examine the appropriateness of the 3 models. The genetic parameters in all models were evaluated. In model I, single-trait animal model, each parity was considered as a different trait. In model II, repeatability model, each trait of different paritys was measured repeatedly. In model I, multiple-trait model, each parity was treated as a different trait. The 6,375 records of NBA from sows that born between 2546 to 2552 were analysed. They were grew by private farms in the central part of Thailand. (Co)variance components and breeding value were estimated by Restricted Maximum Likelihood (REML) and Best Linear Unbiased Prediction (BLUP)...
Tipo: Collection Palavras-chave: Genetic parameter; Litter size; Different parities; Sows; Breeding; แม่สุกร; ขนาดครอก; ลำดับครอกที่แตกต่างกัน; การปรับปรุงพันธุ์สัตว์; ค่าพารามิเตอร์ทางพันธุกรรม; อัตราพันธุกรรม; ค่าการผสมพันธุ์.
Ano: 2012 URL: http://anchan.lib.ku.ac.th/agnet/handle/001/5272
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การประมาณค่าพารามิเตอร์ทางพันธุกรรมของลักษณะขนาดครอกในสุกรโดยใช้โมเดลลูกผสม Thai Agricultural
Panuwat Khumpeerawat; Monchai Duangjinda; Pitcharat Sanchaisuriya; Adiswong Arriyamongkollert.
Tipo: Collection Palavras-chave: Swine; Genetic parameters; Crossbred model; Litter size; สุกร; ค่าพารามิเตอร์ทางพันธุกรรม; โมเดลลูกผสม; ขนาดคอก; อัตราพันธุกรรม; การประเมินพันธุกรรม; พันธุ์แท้; พันธุ์ลูกผสม.
Ano: 2009 URL: http://anchan.lib.ku.ac.th/agnet/handle/001/5844
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