A5059705175- Reproductive Physiology in Livestock
- Genetic and phenotypic traits in livestock
- Reproductive Biology and Fertility
- Ruminant Nutrition and Digestive Physiology
- Effects of Environmental Stressors on Livestock
- Ovarian function and disorders
- Sperm and Testicular Function
- Meat and Animal Product Quality
- Analytical chemistry methods development
- Milk Quality and Mastitis in Dairy Cows
- Pesticide Residue Analysis and Safety
- Fatty Acid Research and Health
- Sunflower and Safflower Cultivation
- Analytical Chemistry and Chromatography
- Livestock Management and Performance Improvement
- Pasture and Agricultural Systems
- Cutaneous lymphoproliferative disorders research
- Minerals Flotation and Separation Techniques
- Nuts composition and effects
- Animal Behavior and Welfare Studies
- Lymphoma Diagnosis and Treatment
- Spectroscopy and Chemometric Analyses
- Seed Germination and Physiology
- Ectopic Pregnancy Diagnosis and Management
- Healthcare during COVID-19 Pandemic
Universidade Federal de Lavras
2016-2025
Universidade Federal de Viçosa
2002-2011
Brazilian Agricultural Research Corporation
2007
Colorado State University
2007
The aim of this study was to evaluate the effect sunflower cake from high-oleic seeds on performance, carcass characteristics, meat quality, and intramuscular fatty acid composition finishing lambs. Thirty-six crossbred ewe lambs were assigned four treatments (nine lambs/treatment) in a completely randomized design: 0 (control), 150, 300 450 g/kg DM cake. weighed weekly slaughtered with 42.3 ± 0.18 kg body weight 270 10.8 days old. inclusion did not affect gain, dry matter intake...
Abstract This study investigated the feasibility of applying fixed‐time (cryopreserved) embryo transfer in ewes. Embryos ( n = 106) were non‐surgically recovered from superovulated donors 39) on day 6–7 after oestrus. Straws containing one or two embryos (morulae and/or blastocysts) subjected to either slow freezing (SF, 62) vitrification (VT, 44) randomly used within Day 8.5. Recipient ewes nulliparous 58) bearing corpora lutea synchronous oestrous induction protocol. The pregnancy rate was...
ABSTRACT The aim of this study was to evaluate hCG treatment on ovarian response and pregnancy rate using a 9-day oestrus synchronization protocol in Santa Ines ewes. On random cycle day, ewes received an intravaginal progesterone device (Primer-PR®, Tecnopec, Brazil). Nine days later (Day 9), 30µg d-cloprostenol (Prolise®, Syntex, Argentina) 250IU eCG (Folligon®, Intervet, Brazil) were administered the removed. This moment, randomly assigned two groups: Control Group Group. In Group, 500IU...
This study assessed the effect of progestogen treatment length on ovarian parameters and embryo yield in superovulated Lacaune ewes collected by nonsurgical recovery. Twenty-three lactating were 30 d apart using a cross-over design. All received 60 mg MAP intravaginal sponges for 6 (G-6 group) or 9 (G-9 d. A total dose 133 pFSH was given six decreasing doses (twice day) starting at h before device removal. Ultrasound examination ovaries performed first injection one day recovery, which 6-7...
Para avaliar a eficiência reprodutiva e sua relação com características produtivas composição genética de um rebanho, criado em condições clima tropical, foram utilizadas 113 vacas, distribuídas sete grupamentos genéticos, como se segue: 1/2, 3/4, 7/8, 9/16 15/16 Holandês x Zebu, Holandês--PB<FONT FACE=Symbol>¾</FONT>PC Gir. As varáveis estudadas foram: idade ao parto, estação parição, intervalo do parto primeiro serviço, serviço fértil, número serviços, período partos...
The effects of overfeeding with protein different degradability on body condition, plasma urea nitrogen and progesterone concentrations, ovulation number follicular dynamics were assessed in Santa Ines ewes. Twelve ewes assigned to a randomized block design according weight received soybean meal or corn gluten maintenance diet for 28 days before during the next estrous cycle. Blood samples taken 7, 14, 21, after beginning treatments analysis 3, 6, 9, 12, 15 into cycle progesterone....
Males and females, including purebred Santa Inês lamb (SI) crosses between dams Texel (TxSI), Ile de France (IFxSI) Bergamasca (BxSI) sires were feedlot finished slaughtered at 15, 25, 35 45kg live weight. After slaughter, the following non- carcass components weighed calculated allometric growth. Lungs of BxSI males grew faster than those SI TxSI. Trachea/esophagus in TxSI slower IFxSI BxSI. Kidneys IFxSI. Livers female more rapidly females other genetic groups. In both rumen/reticulum group
Avaliaram-se os efeitos do escore da condição corporal ao parto sobre a produção e composição leite, curva de lactação o padrão mobilização reservas corporais em vacas raça Holandesa. Foram utilizadas 51 vacas, sendo 13 primíparas 38 multíparas, distribuídas delineamento inteiramente acaso, segundo ordem partos - multíparas classe (ECCP) 1 ECCP igual ou superior 3,25, 2 inferior 3,0. Para avaliar corporais, foram formados grupos função nível leite. Nas primíparas, não observados leite...
RESUMO: Este estudo descreveu as características seminais, da membrana plasmática e do acrossoma de espermatozoide congelado/descongelado 19 ejaculados garanhões raça Nordestina. Os aspectos analisados incluíram os parâmetros físicos sêmen fresco; a motilidade longevidade diluído descongelado; morfologia espermática, integridade funcional estrutural habilidade ligação à perivitelina gema ovo galinha descongelado. As variáveis foram avaliadas pela ANOVA com post hoc teste Student Newman-Keuls...
Avaliou-se o efeito da injeção de somatotropina bovina recombinante (r-bST) sobre ciclo estral cabras. Foram utilizadas 24 fêmeas raça Toggenburg, distribuídas em dois tratamentos: T1 (n=12), cabras tratadas com r-bST; e T2 solução salina (controle). A partir primeira do tratamento, acompanhou-se dos animais estro até subseqüente. O comprimento médio período interovulatório não diferiram (P>0,05) entre os tratamentos. verificados ciclos estrais duas, três quatro ondas crescimento...
This experiment aimed to determine the influence of diets with inclusion protected fat and vitamin E on performance, yield carcass characteristics feedlot lambs different weights. Thirty-two non-castrated Santa Ines were fed a ratio 40% forage 60% concentrate ad libitum, presence or absence and/or E, in total four diets. Two weights early containment also considered: between 20 25 kg 30 35 kg. All animals slaughtered at 84 days confinement. Animals without addition fat, regardless use had...
The effects of feeding urea on embryo production, quality and developmental stages follicular status at the beginning a superovulatory treatment Toggenburg does fed diet were investigated in this study. Eighteen females randomly allocated to receive diets with: no (control, n=8), 2.4% dietary dry matter (n=10) UDM. recovery was performed day 7 or 8 estrus cycle by transcervical technique classified according stage. determined transrectal ultrasonography first FSH injection. number embryos...
To evaluate the effect of using urea in diet on ovarian follicular dynamics and plasma progesterone concentration, an experiment was carried out with 29 Alpine goats randomly distributed into four diets, each one containing 0%; 0.73%; 1.46% or 2.24% total dry matter. The monitored daily by ultrasonography. estrous cycles were characterized occurrence two, three, five waves. emergence day first wave two waves, length third maximum diameter largest follicle three waves presented a quadratic...
Este estudo foi realizado com o objetivo de avaliar a concentração plasmática N-ureico, número ovulações e diâmetro do folículo ovulatório ovelhas da raça Santa Inês submetidas sobrealimentação fontes proteína diferentes degradabilidades ruminais. Quarenta quatro estro sincronizado receberam dietas isoproteicas, formuladas farelo soja (n=24) ou glúten milho algodão (n=20) durante 28 dias antes ovulação. Os animais foram distribuídos em delineamento blocos, os blocos formados por três faixas...
Avaliou-se a resposta de cabras tratadas com r-bST no protocolo sincronização estro. Foram utilizadas 26 Toggenburg, divididas em dois tratamentos: T1 (n=13), quatro injeções 250mg r-bST, intervalos 14 dias, e T2 solução salina (controle). Na semana seguinte à última injeção da colocou-se o dispositivo intravaginal progesterona (dia 0), previamente utilizado por cinco injetou-se PGF2alfa (22,5µg) nos animais dos tratamentos, foi retirado dia 6. Todas as fêmeas estro foram submetidas monta...