Post Partum Cows
Mostrando 1-12 de 14 artigos, teses e dissertações.
-
1. Inflammation: friend or foe of bovine reproduction?
Abstract Inflammation is not only the first line of defense of the organism but is also required in many reproductive processes such as ovulation, corpus luteum development, luteolysis, uterine clearance after insemination and post partum. Nevertheless, if excessive or persistent, inflammation can switch from a positive mechanism to a deleterious process, im
Anim. Reprod.. Publicado em: 28/11/2019
-
2. Metaphylactic effect of calcium on milk composition and animal health in post-partum dairy cows
Abstract: The aim of this study was to evaluate the effects of subcutaneous calcium administration in post-partum dairy cows with respect to carbohydrate, protein and lipids metabolism, as well as its effects on milk composition. Twenty post-partum dairy cows were randomly divided into two groups (n=10): a control and a treated group with a single dose (150
An. Acad. Bras. Ciênc.. Publicado em: 19/06/2019
-
3. Effect of unsaturated fatty acid supplementation on digestion, metabolism and nutrient balance in dairy cows during the transition period and early lactation
The objective of this study was to evaluate the influence of unsaturated fatty acids in diets for dairy cows during the transition period and early lactation on intake, digestion and nutrient balance. Thirty-six multiparous and pregnant Holstein cows were randomly distributed to receive one of the experimental diets in the period from 35 days before the expe
R. Bras. Zootec.. Publicado em: 2014-04
-
4. Influência do estresse térmico no desempenho reprodutivo de vacas leiteiras no período voluntário de espera / Influence of heat stress on reproductive performance of dairy cows during the volunteer waiting period
The aim of this work was to evaluate the total antioxidant capacity in Holstein cows during the volunteer waiting period on two moments, dry season and raining season, to correlate with variables: glucose levels, Na, K, Ca, AST, ALT, triglycerides, cholesterol, open days and services per conception. Were analyzed 60 animals, subdivided on two groups, dry per
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 29/02/2012
-
5. Association of the occurrence of some diseases with reproductive performance and milk production of dairy herds in southern Brazil
This study analyzed associations between the occurrence of mastitis, metritis and retained placenta with the reproductive performance and milk production of four Holstein dairy herds of southern Brazil. Calving-to-conception intervals (CCI) and daily milk production were compared across herds, number of artificial inseminations and clinical occurrences and o
Revista Brasileira de Zootecnia. Publicado em: 2012-02
-
6. Retorno à atividade luteal cíclica no pós-parto em vacas de corte primíparas suplementadas em pasto por diferentes períodos / Return to cyclic luteal activity on primiparous beef cows at post-partum supplemented in grazing for different periods
Este estudo avaliou a influência da suplementação (30%PB) no retorno à atividade cíclica ovariana pós-parto e no perfil metabólico e hormonal de 135 vacas primíparas da raça Nelore. Os animais foram distribuídos aleatoriamente em quatro tratamentos: T1 (apenas sal mineral no pré e pós-parto), T2 (suplementação durante 30 a 65 dias pré-parto),
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 25/02/2010
-
7. Luteólise antecipada em protocolo de inseminação artificial a tempo fixo com progesterona em vacas nos pós-parto
O objetivo do trabalho foi verificar o efeito da antecipação de um luteolítico prévio a retirada do dispositivo intravaginal de progesterona (P4) sobre a taxa de prenhez na inseminação artificial em tempo fixo (IATF) de vacas com cria ao pé em comparação com protocolos de IATF tradicionais que utilizam o luteolítico na ocasião da retirada de P4. T
Publicado em: 2010
-
8. Desempenho produtivo e reprodutivo e parâmetros sanguíneos de vacas leiteiras alimentadas com diferentes fontes de gordura no período de transição e inicio de lactação / Productive and reproductive performance and blood parameters of dairy cows feeding with different fat sources in transition period and early lactation
This study was carried out to evaluate the use of different fat sources in dairy rations, in transition period and early lactation on follicular dynamics, reproductive efficiency, nutrients intake and digestibility, composition and milk yield, composition of protein fraction and energy balance. Third Holstein cows, with production of 30,0 Kg/cow/day on previ
Publicado em: 2009
-
9. Uso de cloprostenol e cipionato de estradiol, durante o puerpério, sobre a saúde uterina e a eficiência reprodutiva em fêmeas girolando / Use of cloprostenol and estradiol cypionate, during the postpartum on uterine health and reproductive efficiency in females girolando
The aim is to find ways of management to improve reproductive efficiency of dairy herds in recent post-partum through the use of analogues of PGF2(alfa) or cypionate of oestradiol, which may improve uterine health and reproductive efficiency. We used one hundred and fourteen cows girolandas randomly divided into three groups: CON - control; PGF2(alfa) - trea
Publicado em: 2009
-
10. Associação entre a ocorrência de algumas enfermidades reprodutivas e o desempenho reprodutivo e produtivo de quatro rebanhos leiteiros da raça holandês / Association among the occurrence of some reproductive diseases and reproductive performance and milk production in four Holstein dairy herds.
Reproductive performance is a key factor for the economical success of dairy production. The objective of this study was to evaluate the association between the occurrence of diseases and the reproductive performance and milk production in four Holstein dairy herds from Castro and Carambeí (PR). An observational study was conducted through database research
Publicado em: 2007
-
11. ESTERÓIDES NO CONTROLE DA REGRESSÃO DE FOLÍCULOS DE DIFERENTES DIÂMETROS PARA USO EM SISTEMAS DE INSEMINAÇÃO ARTIFICIAL EM TEMPO FIXO DE VACAS DE CORTE NO PÓS-PARTO / STEROIDS CONTROLLING THE REGRESSION OF FOLLICLES WITH DIFFERENT DIAMETERS FOR USE IN FIXED TIME ARTIFICIAL INSEMINATION SYSTEMS OF POST PARTUM BEEF COWS
Progestin associated to estradiol benzoate (EB) became the most used treatment for estrous induction in beef cow. However, those programs that use this association still can be enhanced to produce better pregnancy rates and easily the management. Two experiments were designed with this aim. In the first, it was investigated if progestin-estradiol association
Publicado em: 2007
-
12. Manejo reprodutivo pós-parto de vacas primíparas e desenvolvimento de terneiros / Post-partum reproductive management of primiparous cows and growth of their calves
O trabalho teve por objetivo avaliar os efeitos de cargas animais de 240 e 320 kg PV/ha em campo nativo (T1 e T2, respectivamente), de 400 kg PV/ha em pastagem melhorada com azevém (Lolium multiflorum L.) por 80 dias pós-parto e, após, carga animal igual a T2 em campo nativo (T3), e do desmame dos terneiros aos 100 dias (DP) ou aos 180 dias (DC) de idade
Publicado em: 2007