The effect of GnRH on the pregnancy ratio in low-yielding local race cows: comparison of different injection times

2019 ◽  
Vol 52 (2) ◽  
pp. 497-502
Author(s):  
Barış Atalay Uslu ◽  
Alper Kocyigit ◽  
Sait Sendag ◽  
Fetih Gülyüz ◽  
Axel Wehrend
Keyword(s):  
1946 ◽  
Vol 36 (4) ◽  
pp. 497-511 ◽  
Author(s):  
S. Adler

The sandflies of Cyprus have been examined. The following ten species were found: P. papatasii, P. perniciosus var. tobbi, P. chinensis (a local race), P. perfiliewi (rare), P. sergenti, P. alexandri, P. larroussei (rare), P. fallax cypriotica, var. n., P. azizi, sp. n., and P. parroti.Melanic forms of P. parroti were found. Melanism was associated with a reduction in the teeth of the pharynx in the female in the few specimens collected.The race of P. chinensis found on the island differs from those hitherto described.The general composition of the sandfly population of Cyprus is different from that of any other part of the Mediterranean examined.P. major which is common in Palestine, Syria and the Balkans was not found.Canine kala-azar is common on the island. P. perniciosus var. tobbi and a race of P. chinensis should be considered as possible carriers but this point must be determined experimentally.


1961 ◽  
Vol 2 (1) ◽  
pp. 1-9 ◽  
Author(s):  
G. R. Knight

1. Gunson's salivary chromosome preparations of Drosophila subobscura from widely separated sites in Scotland have been re-examined and inversions recorded according to the Mainx nomenclature.2. Sixty-four diploid sets only were available. Of these, thirty-seven sets were found to be structurally homozygous on all chromosomes.3. From Drumnadrochit in the north-central area of Scotland, the inversion found on the E-chromosome, so far as is known, has not previously been described. Its break-points have been noted, and the inversion is named E14.4. A strain of D. subobscura from the small western island of Iona was the only one found to be completely homozygous in the five long arms of the chromosome set.5. Samples of D. subobscura from two closely related localities in Midlothian, Scotland, also have been examined. Results are based on the analysis of 120 haploid sets in hybrids between the local race and the standard Küsnacht stock.6. A slight difference in type and frequency of inversions has been noted between the two populations. The inversion E1+2 was recorded from Dalkeith, but was absent at Heriot, while U1, present at Heriot, was replaced by UST at Dalkeith.7. The A-chromosome was structurally homozygous throughout.8. Scottish samples of D. subobscura are characterized by their qualitative simplicity of polymorphism, the variety of inversion types being small. Chromosome orders analysed have been compared with those occurring in Western Europe and Israel.


2021 ◽  
Author(s):  
Koffi Kouassi Eugène ◽  
Soumahoro Man-Koumba ◽  
Boka O. Marcel ◽  
Melki Jihen ◽  
Ndri Borel ◽  
...  

Abstract BackgroundIn West Africa, pig meat, known as pork, is often supplied by traditional farms in rural districts. This practice causes significant sanitary risk because of the lack of veterinary control of farms and slaughterhouses in rural districts. This study aims to describe pig breeding practices used in southern Côte d'Ivoire to establish a surveillance system for cysticercosis disease. This survey was conducted among traditional pig producers living in villages surrounding Dabou, Aboisso, and Agboville. The data collected focused on the profile of producers and the characteristics of the farms.ResultsA total of 321 pig producers were identified (Dabou 72 (22.4%), Aboisso 26 (8.1%), and Agboville 223 (69.5%)). Most of the herders were male (87.8%). The total count of animals was 3,663 heads of pigs, with mostly youngpiglets (60.2%) and sow (29.3%). The local race was predominant (80.6 %) for only 15.5% of half-caste races. Most of the farms used permanent divagation rearing (53.3%). Following examination, random samples of pigs were tracked in all the selected villages using the quota methods. Animals' blood samples and serums were analyzed using Ac-ELISA and Western Blot. Out of the selected 639 animals, 13.2 % had antibodies against cysticercosis with considerable variations from one village to another.ConclusionsThe study highlighted that, in these regions, pig farming remains essentially traditional, with free grazing of animals, which constitutes a significant sanitary risk, especially for Taenia solium.


Author(s):  
Luis Moisés Morales-Crispín ◽  
Cesáreo Landeros-Sánchez ◽  
Rodolfo Canseco-Sedano ◽  
Juan Prisciliano Zárate-Martínez ◽  
Carlos Miguel Becerril-Pérez ◽  
...  

Objective: To analyze the importance of local livestock resources facing climate change. Methodology: A review of studies referenced in scientific databases disclosed in the livestock sector and animal genetic resources was made within the context of climate change. Results: Livestock breeding is an economic activity that contributes to the food security of the country; in view of its importance, technologies and necessary changes to perform this according to the accelerated changes that occur in the environment, brought by human activity, should be implemented. Implications: Using highly productive races that depend on external inputs and are not adapted to face the effects of climate change, make it a priority to appraise the use of local races that contribute to production under adverse conditions that prevail in warm weathers in the inter-tropical zone. Conclusions: Adapted local race breeders should preserve local animal genetic resources so that they perform as a climate change adaptation alternative that will have repercussions on livestock production systems.


(1.) The object of this paper is to show, by the use of a special case as illustration, the true limits within which it is possible to reconstruct the parts of an extinct race from a knowledge of the size of a few organs or bones, when complete measurements have been or can be made for an allied and still extant race. The illustration I have taken is one of considerable interest in itself, and has been considered from a variety of standpoints by a long series of investigators. But I wish it to be considered purely as an illustration of a general method. What is here done for stature from long bones is equally applicable to other organs in Man. We might reconstruct in the same manner the dimensions of the hand from a knowledge of any of the finger bones, or the bones of the upper limbs from a knowledge of the bones of the lower limbs. Further, we need not confine our attention to Man, but can predict, with what often amounts to a remarkable degree of accuracy, the dimensions of the organs of one local race of any species from a knowledge of a considerable number of organs in a second local race, and of only one or two organs of the first. The importance of this result for the reconstruction of fossil or prehistoric races will be obvious. What we need for any such reconstruction are the following data:— ( a .) The mean sizes, the variabilities (standard-deviations), and the correlations of as many organs in an extant allied race as it is possible conveniently to measure. When the correlations of the organs under consideration are high ( e. g. , the long bones in Man), fifty to a hundred individuals may be sufficient; in other cases it is desirable that several hundred at least should be measured.


2020 ◽  
pp. 92-121
Author(s):  
Jennifer Erickson

This chapter highlights practices of welfare workers in Fargo and compares them to practices of refugee resettlement workers in order to better understand how these institutions have shaped citizenship as well as local race, class, and gender formations in similar and different ways by framing them as siblings in the kinship of neoliberalism. The chapter specifically talks about the Cass County Social Services and the New American Services. Like siblings, workers in both sectors have competed and cooperated as they have worked with New Americans in the city. These institutions and their locations in the public/private borderlands are important loci for understanding varying approaches to citizenship, immigration, race, labor and class, and gender. The chapter also talks about the 1966 Personal Responsibility and Work Opportunity and Reconciliation Act (PRWORA), or simply “welfare reform”.


1890 ◽  
Vol 47 (286-291) ◽  
pp. 445-453 ◽  
Keyword(s):  
The Law ◽  

It is well known that two sets of animals, belonging to the same species, but living in different places, exhibit differences from one another by which they can, in many cases, be easily distinguished. But it is at the same time equally certain that the forces determining the differences between local races of the same species do not so act as to produce the same effect upon all individuals of the same race: for I am aware of no case in which the individuals composing any race of animals—however small and isolated the area in which they live, however uniform the conditions which obtain throughout that area—have been shown to resemble one another exactly in any character. Since the adjustment of a local race to the average proper to it is not complete, the question arises, whether it is not possible to determine the degree of accuracy with which this adjustment is effected, and the law which governs the occurrence of deviations from the average.


1901 ◽  
Vol 67 (435-441) ◽  
pp. 333-337

The substance of this paper was a thesis for the London D. Sc. degree; it was shown to Professor Pearson, at whose suggestion considerable modifications were made, and a revision undertaken with a view to publication. In order to deal exactly with the problem of evolution in man it is necessary to obtain in the first place a quantitative appreciation of the size, variation, and correlation of the chief characters in man for a number of local races. Several studies of this kind have been already undertaken at University College. These fall into two classes, (i) those that deal with a variety of characters in one local race, and (ii) those which study the comparative value of the constants from a variety of races.


2003 ◽  
Vol 93 (8) ◽  
pp. 1014-1022 ◽  
Author(s):  
G. Cai ◽  
L. Rosewich Gale ◽  
R. W. Schneider ◽  
H. C. Kistler ◽  
R. M. Davis ◽  
...  

Thirty-nine isolates of Fusarium oxysporum were collected from tomato plants displaying wilt symptoms in a field in California 2 years after F. oxysporum f. sp. lycopersici race 3 was first observed at that location. These and other isolates of F. oxysporum f. sp. lycopersici were characterized by pathogenicity, race, and vegetative compatibility group (VCG). Of the 39 California isolates, 22 were in VCG 0030, 11 in VCG 0031, and six in the newly described VCG 0035. Among the isolates in VCG 0030, 13 were race 3, and nine were race 2. Of the isolates in VCG 0031, seven were race 2, one was race 1, and three were nonpathogenic to tomato. All six isolates in VCG 0035 were race 2. Restriction fragment length polymorphisms (RFLPs) and sequencing of the intergenic spacer (IGS) region of rDNA identified five IGS RFLP haplotypes, which coincided with VCGs, among 60 isolates of F. oxysporum from tomato. Five race 3 isolates from California were of the same genomic DNA RFLP haplotype as a race 2 isolate from the same location, and all 13 race 3 isolates clustered together into a subgroup in the neighbor joining tree. Collective evidence suggests that race 3 in California originated from the local race 2 population.


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