Results 61 to 70 of about 109,838 (252)

Supplementing beef cattle diets with brown seaweed affects coprophagous beetles' dung use

Agricultural and Forest Entomology, EarlyView.
Supplementing beef cattle diets with brown seaweed reduced the attractiveness of dung for a common dung beetle (Onthophagus nuchicornis). Dietary supplementation with brown seaweed appeared to reduce the proportion of major males in the F1 generation.
Samantha Bennett, Rhea Lumactud, Ghader Manafiazar, Paul Manning   +3 more
wiley   +1 more source

Efeitos da monensina no desempenho de bezerras leiteiras em crescimento Effects of monensin on growing dairy heifers performance

Revista Brasileira de Zootecnia, 2001
Foi estudado o efeito da suplementação de monensina sobre o desempenho de 32 novilhas Holandesas em crescimento, com peso médio de 84 kg, durante quatro meses .
Márcia Saladini Vieira Salles, Marcus Antonio Zanetti, Renata Maria Consentino Conti, César Gonçalves de Lima   +3 more
doaj   +1 more source

Influence of bull biostimulation on age at puberty and reproductive performance of Sahiwal heifers

Indian Journal of Animal Sciences, 2020
Present study was undertaken to compare the effect of biostimulation by exposing the heifers to fenceline bull contact and fenceline + direct contact on age at puberty and reproductive performance of Sahiwal heifers.
SANJAY CHOUDHARY, M L KAMBOJ, NITIN RAHEJA, NISHANT KUMAR, MAYAMITTA SAINI, S S LATHWAL   +5 more
doaj   +1 more source

Cholecystectomy in a heifer

Journal of Veterinary Medical Science, 2017
A 10-month-old female Japanese black heifer presenting with sudden loss of appetite was diagnosed with extreme extension of the gallbladder. Laparotomy reaching from the right part of the 10th rib to the right flank showed an extended gallbladder greater than 50 cm in diameter.
TSUKA, Takeshi, TANAKA, Hinako, KONO, Shinji, MORITA, Takehito, MURAHATA, Yusuke, AZUMA, Kazuo, OSAKI, Tomohiro, ITO, Norihiko, OKAMOTO, Yoshiharu, IMAGAWA, Tomohiro   +9 more
openaire   +3 more sources

Does synchronising follicular wave emergence improve outcomes in non‐superstimulated donor cattle undergoing ovum pick‐up (OPU) for in vitro embryo production?

Australian Veterinary Journal, EarlyView.
In vitro embryo production (IVEP) is now a widely commercialised assisted reproductive technology used in cattle reproduction. The use of follicle‐stimulating hormone (FSH) to superstimulate donor cattle prior to ovum pick‐up (OPU) is generally regarded as an effective strategy to improve oocyte quality, developmental competence and increase embryo ...
J Bird, RP Nevard
wiley   +1 more source

Concentração sérica de progesterona em bezerras da raça nelore e mestiças tratadas com progesterona em veículo de liberação lenta Serum progesterone concentration in Nelore and crossbreed heifers treated with long-acting progesterone

Arquivo Brasileiro de Medicina Veterinária e Zootecnia, 2007
Avaliaram-se a eliminação da progesterona em veículo de liberação lenta (P4LA) em animais zebus e mestiços e sua potencial aplicabilidade em programas de sincronização de estro, utilizando-se 60 bezerras, 30 da raça Nelore e 30 mestiças (Gir x Holandês),
F.P.C. Lima, A. P. Marques Jr, R.H. Douglas, M. Houri Neto   +3 more
doaj   +1 more source

Application of Genomic Random Regression Models for Genetic Parameter Estimations of Female Fertility Traits in Different Parities in German Holsteins. [PDF]

J Anim Breed Genet
ABSTRACT The aim of the present study was to infer genetic (co) variance components and to estimate parity‐specific breeding values for the female fertility traits non‐return rate after 56 days, the interval from calving to first service and days open by applying random regression models on a time‐dependent parity scale. In this regard, we considered a
Sakhaei-Far S, Yin T, König S.
europepmc   +2 more sources

Environmentally adjusted productivity growth and shadow prices for dairy farms

Canadian Journal of Agricultural Economics/Revue canadienne d'agroeconomie, EarlyView.
Abstract We estimate the environmentally adjusted productivity growth and shadow price for Ontario dairy farms. We use an input‐oriented directional distance function and farm‐level data from 2000 to 2020. First, we find that while GHG emissions per cow increase with higher milk yields, emission intensity decreases as milk yield per cow increases.
Bibek Dahal, Getu Hailu, Susantha Jayasundara   +2 more
wiley   +1 more source

Risk factors and prevention strategies for mastitis in New Zealand dairy heifers : this thesis is completed as a partial requirement for the Masters of Veterinary Studies (Epidemiology) from Massey University, Palmerston North, New Zealand [PDF]

, 2006
The aims of this thesis were to investigate herd level risk factors for heifer clinical mastitis and to test the efficacy of a pre-calving intervention on prevalence of post-calving IMI, incidence of clinical mastitis and somatic cell count (SCC) in ...
Parker, Katrina Ivy
core  

Evaluation of age, weaning weight, body condition score, and reproductive tract score in pre-selected beef heifers relative to reproductive potential

Journal of Animal Science and Biotechnology, 2019
Background Artificial insemination is a preferred breeding method for beef heifers as it advances the genetic background, produces a predictive and profitable calving season, and extends the heifer’s reproductive life span.
Sarah E. Dickinson, Michelle F. Elmore, Lisa Kriese-Anderson, Joshua B. Elmore, Bailey N. Walker, Paul W. Dyce, Soren P. Rodning, Fernando H. Biase   +7 more
doaj   +1 more source