Genetic and non-genetic factors affecting conception rate of frozen semen in small holder dairy farmer system of rural India

2021 ◽  
Vol 54 (1) ◽  
Author(s):  
Kaustubh Bhave ◽  
Thilak Pon Jawahar Koilpillai ◽  
Yuvraj Gaundare ◽  
Tejashree Shirsath ◽  
Vinod Potdar ◽  
...  
Keyword(s):  
Genetic Factors ◽  
Conception Rate ◽  
Rural India ◽  
Factors Affecting ◽  
Dairy Farmer ◽  
Frozen Semen ◽  
Small Holder

The Paradox of Poverty: Socio-Economic Aspects of Population Growth.— By T. Scarlett Epstein and Darrell Jackson. The Macmillan of India Limited Delhi, 1975. pp.127.

1978 ◽  
Vol 17 (3) ◽  
pp. 380-382
Author(s):  
M. Javed Akbar Zaki
Keyword(s):  
Decision Making ◽  
Social Situation ◽  
Economic Security ◽  
Rural India ◽  
Factors Affecting ◽  
Number Of Children ◽  
Economic Progress ◽  
The Poor ◽  
Fertility Decision ◽  
The Social

To many social theoreticians, the population explosion, particularly in the developing nations presents a crippling threat to their developmental pro¬cesses. Their argument's validity rests mainly on the assumption that expected economic progress is swallowed up by unbalanced rise of numbers in the population. The book being reviewed deals mainly with this subject matter and is divided into two parts, each containing three articles contributed by various researchers. Part one, 'The Social context of Fertility Decision' is focused on analyzing the role of factors affecting fertility at the micro-level decision making process. The first article 'Fertility decision in rural India' by Vinod Jainath, examines the applicability to rural India of various models of the process of fertility decision making and finds most of these wanting with respect to the Indian social situation. While analyzing the fertility patterns of Rural India, he points out the positive need for larger families among the poor small farmers mainly due to labour supply considerations. The author argues that unemployment and under¬employment actually motivate the poor to have more children as it better ensures their economic security in their old age. As the chances of gaining employ¬ment for their offspring diminish, they are induced to increase the total number of children in order that atleast one will be able to support them. Thus a vicious circle of poverty arises in large families because of each of the parents wanting to increase their children's chances of employment by ultimately reducing the overall employment opportunities even further and exacerbating their poverty.

scholarly journals Genetic predictors of participation in optional components of UK Biobank

2021 ◽  
Vol 12 (1) ◽  
Author(s):  
Jessica Tyrrell ◽  
Jie Zheng ◽  
Robin Beaumont ◽  
Kathryn Hinton ◽  
Tom G. Richardson ◽  
...  
Keyword(s):  
Sensitivity Analysis ◽  
Genetic Variants ◽  
Genetic Factors ◽  
Mendelian Randomization ◽  
Genetic Correlations ◽  
Mr Studies ◽  
Uk Biobank ◽  
Factors Affecting ◽  
Participation Bias ◽  
Genetic Predictors

AbstractLarge studies such as UK Biobank are increasingly used for GWAS and Mendelian randomization (MR) studies. However, selection into and dropout from studies may bias genetic and phenotypic associations. We examine genetic factors affecting participation in four optional components in up to 451,306 UK Biobank participants. We used GWAS to identify genetic variants associated with participation, MR to estimate effects of phenotypes on participation, and genetic correlations to compare participation bias across different studies. 32 variants were associated with participation in one of the optional components (P < 6 × 10−9), including loci with links to intelligence and Alzheimer’s disease. Genetic correlations demonstrated that participation bias was common across studies. MR showed that longer educational duration, older menarche and taller stature increased participation, whilst higher levels of adiposity, dyslipidaemia, neuroticism, Alzheimer’s and schizophrenia reduced participation. Our effect estimates can be used for sensitivity analysis to account for selective participation biases in genetic or non-genetic analyses.

Genetic factors affecting intelligence: Symposium

1954 ◽  
Vol 1 (1) ◽  
pp. 44-52 ◽  
Author(s):  
S. C. Reed ◽  
W. Reed ◽  
J. D. Palm
Keyword(s):  
Genetic Factors ◽  
Factors Affecting

Evaluation of intrauterine insemination of sheep with frozen semen: effects of time of insemination and semen dose on conception rates

1991 ◽  
Vol 53 (1) ◽  
pp. 89-96 ◽  
Author(s):  
R. C. F. Findlater ◽  
W. Haresign ◽  
R. M. Curnock ◽  
N. F. G. Beck
Keyword(s):  
Intrauterine Insemination ◽  
Field Application ◽  
Conception Rate ◽  
Laparoscopic Technique ◽  
Motile Sperm ◽  
Treatment Groups ◽  
Frozen Semen ◽  
Significant Difference ◽  
Conception Rates ◽  
Serum Gonadotropin

ABSTRACTThe field application of a laparoscopic technique to permit intra-uterine insemination of ewes with frozen-thawed semen was examined in two trials, conducted over successive years, to (i) determine the optimum time of insemination relative to sponge removal/pregnant mares's serum gonadotropin (PMSG) injection and (ii) establish the relationship between semen dose and conception rate. Pooled semen was used in both trials, and each involved > 900 ewes in a number of commercial flocks.Maximum conception rates were achieved when insemination was conducted between 54 h and 60 h after sponge removal/ PMSG injection. However, there was no significant difference in conception rate when motile sperm numbers were reduced from 52·2 × 106to 13·0 × 106 motile sperm per uterine horn.The overall conception rates (pooled over flocks and treatment groups) were 56% and 58% for the two trials, with a wide degree of variation between flocks in both cases (45% to 79% for trial 1 and 45% to 69% for trial 2). However, there was evidence for consistent differences in conception rates between the six flocks involved in both years of the trials.

Factors affecting the size of ovulatory follicles and conception rate in high-yielding dairy cows

2016 ◽  
Vol 85 (4) ◽  
pp. 747-753 ◽  
Author(s):  
A. Mokhtari ◽  
M. Kafi ◽  
M.J. Zamiri ◽  
R. Akbari
Keyword(s):  
Dairy Cows ◽  
Conception Rate ◽  
Factors Affecting ◽  
Ovulatory Follicles

The Nature and Origin of Common Phobic Fears

1979 ◽  
Vol 134 (4) ◽  
pp. 343-351 ◽  
Author(s):  
Svenn Torgersen
Keyword(s):  
Environmental Factors ◽  
Social Adjustment ◽  
Twin Study ◽  
Genetic Factors ◽  
Factor Analyses ◽  
Factors Affecting ◽  
Five Factors

SummaryBy means of a twin study an attempt was made to throw light upon the aetiology and nosology of phobic fears. Factor analyses revealed five factors, namely separation fears, animal fears, mutilation fears, social fears and nature fears. The study demonstrated that, apart from separation fears, genetic factors play a part in the strength as well as content of phobic fears. Environmental factors, affecting the development of dependence, reserve and neurotic traits generally, seemed also to be of some importance. It was further demonstrated that phobic fears were related to emotional and social adjustment and this was true to an even greater extent for separation fears.

scholarly journals Environmental and genetic factors affecting the weaning-estrus interval in sows

2011 ◽  
Vol 10 (4) ◽  
pp. 2692-2701 ◽  
Author(s):  
C.D.S. Leite ◽  
J.F. Lui ◽  
L.G. Albuquerque ◽  
D.N.M. Alves
Keyword(s):  
Genetic Factors ◽  
Factors Affecting
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