Results 101 to 110 of about 41,399 (301)

Estrus behavior in Guzera (Bos taurus indicus) breed cows [PDF]

open access: yes, 2009
The estrus behavior was evaluated during an induced and natural subsequent estrus in twelve Guzera breed cows, in the winter and summer seasons in two consecutive years. The proportion of cows that responded to estrus synchronization was 84.8%.
Torres,Ciro Alexandre Alves   +11 more
core   +1 more source

Safety Evaluation of an Aqueous Root and Leaf Extract of Ashwagandha (Withania somnifera)

open access: yesPhytotherapy Research, EarlyView.
Sensoril, an aqueous root and leaf extract of ashwagandha showed no evidence of mutagenicity in the in vitro Ames assay, was negative in the in vitro micronucleus, in vivo mammalian bone marrow chromosome aberration assays, and was well tolerated in the rat at up to 4000 mg/kg BW/day when administered orally for a period of 90 days. The data from these
Mukesh Summan   +2 more
wiley   +1 more source

Fatores ambientais e estimativa de herdabilidade para o intervalo desmame-cio de fêmeas suínas Environmental factors and heritability estimate for the weaning-estrus interval in sows

open access: yesRevista Brasileira de Zootecnia, 2008
Este trabalho foi realizado com os objetivos de avaliar a influência de fatores ambientais e estimar a herdabilidade para a característica intervalo desmame-cio (IDC) de fêmeas suínas.
Aderbal Cavalcante Neto   +5 more
doaj   +1 more source

Status of On-Farm Artificial Insemination Services and Effectiveness of Oestrus Synchronization in Dairy Cattle Under Small-Scale Dairy Farming System. [PDF]

open access: yesVet Med Sci
Cross‐sectional survey and retrospective data on the oestrus synchronization were collected and analysed. The predominant mating system practiced by dairy farmers was AI (55.6%), and 73.5% of farmers apply controlled mating. The highest response rate and pregnancy rate were 89.5% and 45.2%, respectively, whereas a birth rate of 9.6%–18.5% was obtained.
Milkias T, Chebo C, Worku A.
europepmc   +2 more sources

Respons Dan Karakteristik Estrus Setelah Sinkronisasi Estrus Dengan Cloprostenol Pada Sapi Friesian Holstein

open access: yes, 2017
Sinkronisasi estrus merupakan usaha untuk menyeragamkan terjadinya gejala estrus dan ovulasi pada ternak dengan memanipulasi siklus reproduksi betina menggunakan preparat hormon.
Balumbi, Musthamin
core  

Portable Radar for Noncontact Heart Rate Monitoring and Estrus Detection in Dairy Cows

open access: yesIEEJ Transactions on Electrical and Electronic Engineering, EarlyView.
This study introduces a portable radar system for real‐time monitoring of respiratory and heart rates in dairy cows. It uses millimeter‐wave Frequency Modulated Continuous Wave (FMCW) radar to perform noncontact physiological sensing, reducing behavioral disturbance. The radar system's design prioritizes portability, cost‐effectiveness, and robustness,
Yingxiu Li   +7 more
wiley   +1 more source

Evaluation of a non‐radioactive rapid test for determination of serum progesterone in South American camelids

open access: yesVeterinary Record, EarlyView.
Abstract Background Determination of the serum progesterone (P4) concentration is of high importance in reproductive medicine and may be applied for diagnosing pregnancy in South American camelids. P4 measurements in alpacas and llamas are usually performed using immunoassays, which are time consuming and require appropriate expertise of laboratory ...
Lina Längerer   +5 more
wiley   +1 more source

Estrus

open access: yes, 2020
This music score was submitted for the Kaleidoscope 2020 Call for Scores, an open access collaboration with the UCLA Music Library.
openaire   +1 more source

Estrus synchronization in cattle

open access: yes, 2014
The purpose of estrus synchronization is to manipulate the bovine estrus cycle and achieve a result were the majority of animals on a farm exhibits standing heat in a short period of time.
Engseth, Kirsti Margaret
core  

Factors associated with the reproductive performance of ewes inseminated laparoscopically in England and Wales: A longitudinal study

open access: yesVeterinary Record, EarlyView.
Abstract Background Laparoscopic intrauterine artificial insemination (Lap‐AI) is used in sheep genetic improvement programmes. However, the lambing rate (LR) (i.e., the proportion of inseminated ewes that lamb) following Lap‐AI is variable. Previously, one small UK study investigated factors associated with LR, but it did not adjust for dependencies ...
Mike J. Glover   +2 more
wiley   +1 more source

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