Articles Related to Cattle

This study was carried out to study the peculiarities of the topography, the macrostructure and the analysis of the structural and functional organization patterns of the parenchyma of the thyroid gland of dairy cows (local breed from the Souk Ahras region, Algeria). A complex of macroscopic and histological techniques was used, as well as immunohistochemical staining of thyroid gland sections to identify localization characteristics of thyrocyte populations in the parenchyma.

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Different tick species and tick-borne diseases of cattle are present in Ethiopia and they induce huge production loss in livestock industry by creating serious animal health problems. The present study was conducted from November 2017 to April 2018 in Arsi Negele and Asasa districts of West Arsi Zone, Oromia National Regional State, Ethiopia. A cross sectional study design and purposive sampling technique were employed to select 384 study animals so as to identify ticks species and tick-haemoparasite species and also to identify risk factors that affect the prevalence and association of tick born diseases. Tick and haemoparasite identification were carried out by using drect stereomicroscopic and direct thin blood examination. The study identified two tick genera and four tick species. The tick species encountered were Rhipicephalus decoloratus (51.6%) Ambylomma variegatum (46.1%) Ambylomma gemma (20.1%) and Rhipicephalus evertsi evertsi (1.2%). Out of all 384 cattle examined for the presence of tick-born haemoparasites 11.4% (n=44) of them were positive. From this 6.2%, 3.6 %, 1.3% and 0.8% of them were positive for Anaplasma marginale, Babesia bigemina, Babesia bovis and Anaplasma marginale, respectively. Two cattle (0.5%) were found positive for both Anaplasma marginale and Babesia bigemina. The highest prevalence of total tick born haemoparasites (57.1%) was occurred in A. Variegatum, A. gemma and R. decoloratus mixed infestations. In conclusion ticks and tick born haemoparasitic infections were common problems in the study area. Thus, awareness creation for farmers about the impacts of ticks and tick born diseases on livestock production and productivity and also applying appropriate and timely strategic tick control methods by veterinary service providers were advisable.

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The records of 1198 crossbred cattle sired by 68 bulls were analyzed to estimate breeding values of sires using animal model Restricted Maximum Likelihood (REML), best linear unbiased prediction (BLUP), least squares methods (LSM) and simple daughter average ( D ) sire evaluation methods. The error variance of breeding values of sires were estimated and used in computing the relative efficiency of different sire evaluation methods. In the present study the least squares methods (LSM) have the lower error variance for Age at First Calving (AFC), First lactation milk yield (FLMY) and Lifetime lactation length (LTLL), while (BLUP) methods have the lower error variance for First lactation period (FLP), First dry period (FDP), First calving interval (FCI), First service period (FSP) and Lifetime milk yield (TLMY) as compared to other methods and accordingly, it was adjudged the most efficient sire evaluation method. In the present study, the higher value of coefficient of variation showing, there was very large variation in the herd for most of the traits under study. It indicated that the BLUP method is the best over the other three methods because estimated value of relative efficiency by BLUP method had smaller values than that of the other three methods. On the basis of the error variances of breeding values of sires the BLUP method was found most efficient sire evaluation method.

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The occurrence of cystic echinococcosis (CE) at a national level or in large regional areas is an issue difficult to determine in a cost-effective way, integrating both human and animal data, and thus leading to effective control measures. In Portugal, the abattoirs in north Douro region receive a large percentage of heads of cattle from the whole country which makes them ideal places for the implementation of a surveillance system for this zoonosis. Data was obtained for cattle slaughtered in 9 abattoirs in north region of Douro River, with visible CE-like cysts at meat inspection. An excel database was constructed with the records of condemned viscera due to hydatid cysts in cattle for 2008, 2009, 2010, and the first half of 2011. Most of the cysts were found in the lungs and livers (23.5%), only in livers (21.5%) or only in lungs (18.1%). Individual information concerning each animal contributed to the depiction of a distribution map by regions of the occurrence of positive cases in Portugal. From the 149 cases registered, it was possible to identify the place of infection in 93 cases (62.4%), in which the rate of distribution was 21 (22.6%) in the north, 14 (15.1%) in the center, 57 (61.3%) in Alentejo and 1 case (1.1%) in Algarve. This distribution of cases coincides with the location of human and animal cases reported before, with special focus on the Alentejo and in the northeast of the country.

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Neospora caninum is a worldwide-distributed pathogen which causes abortions in dairy cattle, leading to economic losses in the cattle industry.

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The study was aimed to evaluate the potency and for advocation of a homeopathic drug regimen against warts. Sixty six cattle of variable age presented with warts on skin, eyelids, ears, muzzle, udder and external genitals.

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Ascites due to thrombosis of the caudal vena cava is relatively seldom in cattle. To our knowledge, there have been no reports of ascites secondary to compression of the caudal vena cava by liver abscesses. This case report describes the findings in a 3.7-year-old Brown Swiss cow with this disease.

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Assisted reproductive technologies, such as artificial insemination and embryo transfer, have produced significant outcomes in cattle. These technologies are useful not only for improving fertility but also for increasing the rate of genetic change in beef and dairy livestock. Today, embryo transfer in cattle is both practical and commercially viable. However, bovine embryo transplantation still remains suboptimal under on-farm conditions, one of the main reasons for which may be inefficient nutritional management.

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The objectives of this retrospective study were 1. To determine the effect of three surgical techniques (right flank omentopexy, right flank omentoabomasopexy, and left flank abomasopexy), and 2. To determine the effect of concurrent disease on return to normal milk production. Return to normal milk production occurred in 86.3% of cows diagnosed with LDA. Results suggested that cattle diagnosed with LDA corrected via right flank omentopexy or left flank abomasopexy were significantly more likely to return to normal milk production as compared to those corrected via right flank omentoabomasopexy (p<0.02). No significant difference in return to normal milk production was noted between surgical techniques for correction of RDA (p=1.000) and right abomasal volvulus (p=0.596). Concurrent disease diagnoses did not affect return to milk production. Reported complications were infrequent (n=11).

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