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Dec 2023 DOI 10.14302/issn.2575-1212.jvhc-23-4785
Ararsa DugumaCorresponding author
Reproductive performance is an essential trait of cows in dairy cattle. The effect of different factors on reproductive performances and sex ratio difference in dairy cattle were not well documented in Ethiopia. In this research, cross-sectional study was conducted from December 2021 to June 2022 in…
Jun 2018 DOI 10.14302/issn.2575-1212.jvhc-18-2146
Mohammed A ElmetwallyCorresponding author
Retained fetal membrane (RFM) is a crucial calving related disorder that affects economic for the farmer and herd health. Retention of Placenta (ROP) is the condition in which the fetal membranes are not expelled within a period of 12 hours after parturition. Buffalo cows (n=34) aged 4-9 years old w…
Feb 2018 DOI 10.14302/issn.2575-1212.jvhc-17-1796
F.T. ScullionCorresponding author
Two groups of young pigeons were trained and flight parameters profiled over a flight path of approximately 90 km and a number of measures were developed to analyse their flight performances. An aerodynamic model of avian flight was fitted to the data to assess its value in predicting flight perform…
Nov 2017 DOI 10.14302/issn.2575-1212.jvhc-17-1795
Andrea Luciana dos SantosCorresponding author
The aim of this study was to establish the digestible threonine (dig. Thr) requirements and the ideal proportion between Thr and Lys for Isa Brown laying hens on productive traits and egg quality characteristics from 55- to 58- and 59- to 61 weeks of age. Increased levels of L-Thr were added to a ba…
Nov 2021 DOI 10.14302/issn.2575-1212.jvhc-21-3973
Mohammed A ElmetwallyCorresponding author
This review focused on the various methods for controlling estrous cycles in well-managed dairy cows. Because up to 70% of dairy cows may stay non-pregnant after an AI procedure, an effective approach for identifying and reinseminating open cows is essential for dairy herds to achieve optimal reprod…
Nov 2018 DOI 10.14302/issn.2575-1212.jvhc-18-2447
Mohammed Ahmed ElmetwallyCorresponding author
Following parturition in the cow, there is a significant period of sexual quiescence of variable length. This period of reproductive quiescence was found to be longer in suckling or intensively milked animals.This acyclic period is generally considered as the postpartum anoestrous period. The postpa…