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Kumar M, Vohra V, Ratwan P, Lathwal SS. Genetic analysis of milk and milk composition traits in Murrah buffaloes using Bayesian inference. Anim Biotechnol 2023; 34:3280-3286. [PMID: 36227584 DOI: 10.1080/10495398.2022.2130797] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/01/2022]
Abstract
Accurate and unbiased assessment of genetic parameters of milk and milk composition traits play an important role in formulating breeding program for genetic improvement of Murrah buffaloes. In this study, data spread over 28 years were utilized to estimate genetic parameters of traits viz., 305 d milk yield (305MY), 305 d fat yield (305FY), 305 d solid not fat yield (305SNFY), milk fat percentage (fat%) and solid not fat percentage (SNF) percentage (SNF%) in Murrah buffaloes kept at ICAR-National Dairy Research Institute, Karnal. Bayesian multiple-trait analysis was done using animal model and Gibbs sampling to estimate (co)variance components. Posterior means of heritability and posterior standard deviation for 305MY, 305FY, 305SNFY, fat% and SNF% were 0.18 ± 0.05, 0.17 ± 0.05, 0.18 ± 0.05, 0.07 ± 0.03 and 0.15 ± 0.06 and posterior means of repeatability estimates along with posterior standard deviation for corresponding traits were 0.33 ± 0.04, 0.32 ± 0.04, 0.33 ± 0.04, 0.14 ± 0.02 and 0.30 ± 0.04, respectively. Estimates of genetic correlation varied from -0.080 (305MY and fat %) to 0.999 (305MY and 305SNFY). Permanent environmental correlations varied from -0.060 (305MY and SNF%) to 0.999 (305FY and 305SNFY). This study indicated that all considered traits except fat% have ample genetic variability which can be exploited for selection and genetic improvement of Murrah buffaloes.
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Affiliation(s)
- Manoj Kumar
- Department of Livestock Farm Complex, Lala Lajpat Rai University of Veterinary and Animal Sciences, Hisar, India
| | - Vikas Vohra
- Animal Genetic & Breeding Division, ICAR-National Dairy Research Institute, Karnal, India
| | - Poonam Ratwan
- Department of Animal Genetics & Breeding, Lala Lajpat Rai University of Veterinary and Animal Sciences, Hisar, India
| | - S S Lathwal
- Livestock Production Management Section, ICAR-National Dairy Research Institute, Karnal, India
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Verma P, Sharma A, Sodhi M, Tiwari M, Vivek P, Kataria RS, Nirajan SK, Bharti VK, Singh P, Lathwal SS, Sharma V, Masharing N, Mukesh M. Identification of Internal Reference Genes in Peripheral Blood Mononuclear Cells of Cattle Populations Adapted to Hot Arid Normoxia and Cold Arid Hypoxia Environments. Front Genet 2022; 12:730599. [PMID: 35178065 PMCID: PMC8846307 DOI: 10.3389/fgene.2021.730599] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2021] [Accepted: 12/03/2021] [Indexed: 11/13/2022] Open
Abstract
To estimate gene expression in a reliable manner, quantitative real-time polymerase chain reaction data require normalisation using a panel of stably expressed reference genes (RGs). To date, information on an appropriate panel of RGs in cattle populations reared at cold arid high-altitude hypoxia and hot arid tropical normoxia environments is not available. Therefore, the present study was carried out to identify a panel of stably expressed RGs from 10 candidate genes (GAPDH, RPL4, EEF1A1, RPS9, HPRT1, UXT, HMBS, B2M, RPS15, and ACTB) in peripheral blood mononuclear cells (PBMCs) of cattle populations reared at cold arid high-altitude hypoxia and hot arid normoxia environments. Four different statistical algorithms: geNorm, NormFinder, BestKeeper, and RefFinder were used to assess the stability of these genes. A total of 30 blood samples were collected: six adult heifers each of Ladakhi (LAC) and Holstein Frisian crosses (HFX) and 4 Jersey (JYC) cows from cold arid high-altitude hypoxia environments (group I) and five adult heifers each of Sahiwal (SAC), Karan Fries (KFC), and Holstein Friesian (HFC) cows from hot arid normoxia environments (group II). Combined analysis of group I and group II resulted in identification of a panel of RGs like RPS9, RPS15, and GAPDH that could act as a useful resource to unravel the accurate transcriptional profile of PBMCs from diverse cattle populations adapted to distinct altitudes.
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Affiliation(s)
- Preeti Verma
- Animal Biotechnology Division, ICAR-National Bureau of Animal Genetic Resources, Karnal, India
| | - Ankita Sharma
- Animal Biotechnology Division, ICAR-National Bureau of Animal Genetic Resources, Karnal, India
| | - Monika Sodhi
- Animal Biotechnology Division, ICAR-National Bureau of Animal Genetic Resources, Karnal, India
| | - Manish Tiwari
- Animal Biotechnology Division, ICAR-National Bureau of Animal Genetic Resources, Karnal, India.,Animal Biotechnology Center, ICAR-National Dairy Research Institute, Karnal, India
| | - Prince Vivek
- Animal Biotechnology Division, ICAR-National Bureau of Animal Genetic Resources, Karnal, India
| | - Ranjit S Kataria
- Animal Biotechnology Division, ICAR-National Bureau of Animal Genetic Resources, Karnal, India
| | - S K Nirajan
- Animal Biotechnology Division, ICAR-National Bureau of Animal Genetic Resources, Karnal, India
| | - Vijay K Bharti
- DRDO-Defense Institute of High-altitude Research, Leh, India
| | - Pawan Singh
- Animal Biotechnology Center, ICAR-National Dairy Research Institute, Karnal, India.,Department of Livestock Production Management, ICAR-National Dairy Research Institute, Karnal, India
| | - S S Lathwal
- Animal Biotechnology Center, ICAR-National Dairy Research Institute, Karnal, India.,Department of Livestock Production Management, ICAR-National Dairy Research Institute, Karnal, India
| | - Vishal Sharma
- Animal Biotechnology Division, ICAR-National Bureau of Animal Genetic Resources, Karnal, India
| | - Nampher Masharing
- Animal Biotechnology Division, ICAR-National Bureau of Animal Genetic Resources, Karnal, India.,Animal Biotechnology Center, ICAR-National Dairy Research Institute, Karnal, India
| | - Manishi Mukesh
- Animal Biotechnology Division, ICAR-National Bureau of Animal Genetic Resources, Karnal, India
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Loat S, Kumari N, Saini S, M S Dige, Kumar A, Dhilor N, Dang AK, Lathwal SS, Sodhi M, Kataria RS. Allelic diversity at BoLA DRB3 locus and association with predisposition to clinical mastitis in indicus and crossbred cattle. Anim Biotechnol 2021:1-10. [PMID: 34904511 DOI: 10.1080/10495398.2021.2010088] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Abstract
Bovine lymphocyte antigen (BoLA) DRB3 locus in healthy and mastitis affected cattle has been genotyped by a polymerase chain reaction and restriction fragment length polymorphisms (PCR-RLFP) using RsaI restriction enzyme, followed by sequencing. In 130 farm animals, 25 BoLA DRB3 alleles have been detected by PCR-RFLP. Three distinct allelic patterns significantly associated with mastitis in Karan Fries crossbred and Sahiwal indicus cattle have been identified, whereas, four other allelic patterns were significantly high in frequency among healthy animals. Sequencing of RFLP genotypes revealed 25 and 47 alleles among healthy Sahiwal and Karan Fries, respectively, while 17 and 38 patterns observed in mastitis affected Sahiwal and Karan Fries animals, respectively. From Tajima's D-test of neutrality, it was concluded that alleles associated with mastitis were expanding in the population, whereas those of healthy were under contraction. Phylogenetic analysis carried out to delineate the evolutionary relationship of the farm and field animals at DRB3 locus, differentiating allelic patterns into six different clusters. Among the phylogenetic lineages, five patterns DRB3*028:01, DRB3*011:03, DRB3*031:01, DRB3*001:01 and DRB3*043:01, were previously reported, whereas one novel allelic variant was observed in indicus and crossbred cattle. This information will help in further exploring the association between BoLA-DRB3 genetic diversity and disease resistance in distinct cattle breeds, important in designing breeding strategies for increasing the distribution of favorable alleles.
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Affiliation(s)
- Shubham Loat
- Animal Biotechnology Division, ICAR-National Bureau of Animal Genetic Resources, Karnal, Haryana, India
| | - Namita Kumari
- Animal Biotechnology Division, ICAR-National Bureau of Animal Genetic Resources, Karnal, Haryana, India
| | - Shallu Saini
- Animal Biotechnology Division, ICAR-National Bureau of Animal Genetic Resources, Karnal, Haryana, India
| | - M S Dige
- Animal Biotechnology Division, ICAR-National Bureau of Animal Genetic Resources, Karnal, Haryana, India
| | - Anurag Kumar
- Animal Biotechnology Division, ICAR-National Bureau of Animal Genetic Resources, Karnal, Haryana, India
| | - Nitika Dhilor
- Animal Biotechnology Division, ICAR-National Bureau of Animal Genetic Resources, Karnal, Haryana, India
| | - Ajay Kumar Dang
- ICAR-National Dairy Research Institute, Karnal, Haryana, India
| | - S S Lathwal
- ICAR-National Dairy Research Institute, Karnal, Haryana, India
| | - Monika Sodhi
- Animal Biotechnology Division, ICAR-National Bureau of Animal Genetic Resources, Karnal, Haryana, India
| | - Ranjit S Kataria
- Animal Biotechnology Division, ICAR-National Bureau of Animal Genetic Resources, Karnal, Haryana, India
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Mohan G, Kumar A, Khan SH, Kumar NA, Kapila S, Lathwal SS, Sodhi M, Niranjan SK. Casein (CSN) gene variants and parity affect the milk protein traits in crossbred (Bos taurus x Bos indicus) cows in sub-tropical climate. Trop Anim Health Prod 2021; 53:289. [PMID: 33905007 DOI: 10.1007/s11250-021-02736-w] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2021] [Accepted: 04/18/2021] [Indexed: 09/29/2022]
Abstract
Genotypes at four casein (CSN) loci-A26181G of CSN1S1, C6227T of CSN1S2, A8101C of CSN2, and A13104C of CSN3-along with non-genetic factors were studied for their effects on various milk protein traits in 100 crossbred cows with major inheritance of Holstein Frisian (Bos taurus) and Tharparkar (Bos indicus). Results demonstrated the presence of all CSN genotypes with a predominance of heterozygotes. At CSN2 (A8101C; His67Pro) locus, the A2 allele, desirable for human health, was present in 62% as heterozygous and 29% in homozygous condition. Among non-genetic factors, parity of the cows had a significant influence on the milk protein traits in these crossbreds. The genotypes at CSN1S1, CSN2, and CSN3 loci were found to influence (p<0.05 to 0.01) the casein and whey protein yields and composition traits. The casein index and total milk yield were most influenced by the CSN1S2 locus. The AA (A1 milk) genotype of CSN2 had significantly higher yields and percentages of casein and whey proteins. Positive influence of CC genotype of CSNS3 on milk proteins of was observed similar to Bos taurus cows; however, such influence of AA genotype of CSN2 locus may be distinctive to the crossbred cows maintained in subtropical condition. Overall, the results revealed the diverse effects of CSN genotypes on milk proteins in crossbred cattle.
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Affiliation(s)
- Govind Mohan
- ICAR-National Bureau of Animal Genetic Resources, Karnal, Haryana, India.,ICAR-National Dairy Research Institute, Karnal, Haryana, India
| | - Anshuman Kumar
- ICAR-National Dairy Research Institute, Karnal, Haryana, India.,Faculty of Veterinary and Animal Sciences, Banaras Hindu University, Mirzapur, U.P., India
| | | | - N Anand Kumar
- ICAR-National Dairy Research Institute, Karnal, Haryana, India
| | - Suman Kapila
- ICAR-National Dairy Research Institute, Karnal, Haryana, India
| | - S S Lathwal
- ICAR-National Dairy Research Institute, Karnal, Haryana, India
| | - Monika Sodhi
- ICAR-National Bureau of Animal Genetic Resources, Karnal, Haryana, India
| | - S K Niranjan
- ICAR-National Bureau of Animal Genetic Resources, Karnal, Haryana, India.
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Shyam S, Goel P, Kumar D, Malpotra S, Singh MK, Lathwal SS, Chand S, Palta P. Effect of Dickkopf-1 and colony stimulating factor-2 on the developmental competence, quality, gene expression and live birth rate of buffalo (Bubalus bubalis) embryos produced by hand-made cloning. Theriogenology 2020; 157:254-262. [PMID: 32823021 DOI: 10.1016/j.theriogenology.2020.07.022] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2020] [Revised: 06/07/2020] [Accepted: 07/25/2020] [Indexed: 01/23/2023]
Abstract
A functional canonical WNT signaling pathway exists in preimplantation embryos and inhibits embryonic development. Recent studies suggest that this pathway is over-expressed in nuclear transferred (NT), compared to IVF embryos. The present study investigated the effects of Dickkopf-1 (DKK1), an inhibitor of canonical WNT signaling pathway and colony stimulating factor-2 (CSF2), an embryokine, on the developmental competence, quality, gene expression and live birth rate of NT buffalo embryos produced by Hand-made cloning (HMC). Following supplementation of the in vitro culture medium on day 5 with DKK1 (100 ng/mL), CSF2 (10 ng/mL), DKK1+CSF2 or no supplementation (control), the blastocyst rate was higher (P < 0.05) with DKK1 and DKK1+CSF2 (42.6 ± 1.4% and 46.6 ± 0.9%, respectively) than with CSF2 or controls (40.6 ± 1.3% and 39.0 ± 1.3%, respectively). The apoptotic index of the blastocysts was lower (P < 0.05) for DKK1, CSF2 and DKK1+CSF2 groups (3.44 ± 0.14, 3.39 ± 0.11 and 3.11 ± 0.22, respectively) compared to controls (6.64 ± 0.25), and was similar to that of the IVF blastocysts (3.67 ± 0.18). Although the total cell number was similar for the DKK1, CSF2, DKK1+CSF2 and control groups (200.4 ± 3.05, 196.4 ± 3.73, 204.7 ± 3.71 and 205 ± 4.03, respectively), the inner cell mass:trophectoderm cell number ratio of DKK1, CSF2 and DKK1+CSF2 groups (0.21 ± 0.01, 0.17 ± 0.01 and 0.22 ± 0.02, respectively) was higher (P < 0.05) than controls (0.13 ± 0.01) and was similar to that of IVF blastocysts (0.19 ± 0.01). Treatment with DKK1 or CSF2 or both increased (P < 0.05) the expression level of OCT4, NANOG,SOX2, GATA6, BCL2, PTEN, P53, FGF4, GLUT1 and IFN-τ, and decreased that of C-MYC, CDX2, CASPASE, DNMT3a, TCF7 and LEF1 in blastocysts, compared to controls. Transfer of DKK1-treated embryos to 13 recipients resulted in 4 pregnancies (30.8%; 2 live births, one abortion and one currently at 9 months of pregnancy) whereas, transfer of DKK1+CSF2-treated embryos to 16 recipients, resulted in 4 pregnancies (25.0%), all of which resulted in live births. No pregnancy was obtained after transfer of control and CSF-treated embryos to 12 and 16 recipients, respectively. These results suggest that DKK1 treatment of NT embryos increases the blastocyst, conception and live birth rate, and improves their quality whereas, CSF2 treatment, does not affect the blastocyst, conception and live birth rate despite improvement in embryo quality.
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Affiliation(s)
- S Shyam
- ICAR-National Dairy Research Institute, Karnal, 132001, Haryana, India
| | - P Goel
- ICAR-National Dairy Research Institute, Karnal, 132001, Haryana, India
| | - D Kumar
- ICAR-National Dairy Research Institute, Karnal, 132001, Haryana, India
| | - S Malpotra
- ICAR-National Dairy Research Institute, Karnal, 132001, Haryana, India
| | - M K Singh
- ICAR-National Dairy Research Institute, Karnal, 132001, Haryana, India
| | - S S Lathwal
- ICAR-National Dairy Research Institute, Karnal, 132001, Haryana, India
| | - S Chand
- ICAR-National Dairy Research Institute, Karnal, 132001, Haryana, India
| | - P Palta
- ICAR-National Dairy Research Institute, Karnal, 132001, Haryana, India.
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Biswal P, Lathwal SS, Baithalu RK. Oxidative stress molecules as indicators of uterine health in Murrah buffaloes during peripartum period. IJDS 2020. [DOI: 10.33785/ijds.2020.v73i03.008] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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Acharya P, Lathwal SS, Singh P, Madhav Patnaik N, Moharana B. Effect of supplementation with rumen-protected choline and green tea extract on production performance of transition Karan Fries cows. Vet World 2020; 13:489-494. [PMID: 32367954 PMCID: PMC7183481 DOI: 10.14202/vetworld.2020.489-494] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2019] [Accepted: 02/05/2020] [Indexed: 11/30/2022] Open
Abstract
Aim: The main objective of this study was to estimate the effect of supplementation of rumen-protected choline (RPC) and green tea extract (GTE) on production parameters in transition Karan Fries (KF) cows. Materials and Methods: The present experiment was carried out on 32 pregnant KF cows. In the control group, cows were fed basal diet. In T1, each cow was fed RPC (55 g/day), in T2 – GTE (3 g/d), and in T3– RPC + GTE (55+3) g/day along with basal diet. The duration of the experiment was 30 days before calving to 60 days after parturition. Results: Feeding of both RPC and GTE significantly increased milk yield (p≤0.01), 4% fat corrected milk yield (p≤0.01), milk fat (p≤0.01), and total solid content (p≤0.05) than control. There was no significant difference (p≥0.05) in milk protein, lactose, and solids not fat (SNF) content among the groups. Conclusion: Supplementing RPC and GTE in combination improved milk yield and fat content of the milk without altering protein, lactose content of the milk in transition KF cows.
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Affiliation(s)
- Parag Acharya
- Division of Livestock Production and Management, National Dairy Research Institute, Karnal, Haryana, India
| | - S S Lathwal
- Division of Livestock Production and Management, National Dairy Research Institute, Karnal, Haryana, India
| | - Pawan Singh
- Division of Livestock Production and Management, National Dairy Research Institute, Karnal, Haryana, India
| | - Neela Madhav Patnaik
- Division of Dairy Extension, National Dairy Research Institute, Karnal, Haryana, India
| | - Baisakhi Moharana
- Division of Pharmacology, Council of Scientific and Industrial Research-Central Drug Research Institute, Lucknow, Uttar Pradesh, India
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Singh M, Lathwal SS, Kotresh Prasad C, Dey D, Gupta A, Saini M, Lathwal I, Sharma B, Kumar M, Sharma V. Availability of feed sources and nutritional status of Hariana cattle in different seasons in the breeding tract. BIOL RHYTHM RES 2019. [DOI: 10.1080/09291016.2019.1607222] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
Affiliation(s)
- Man Singh
- Livestock production Management, ICAR – National Dairy Research Institute, Karnal, India
| | - S. S. Lathwal
- Livestock production Management, ICAR – National Dairy Research Institute, Karnal, India
| | - C. Kotresh Prasad
- Livestock production Management, ICAR – National Dairy Research Institute, Karnal, India
| | - Deepak Dey
- Animal Nutrition division, ICAR – National Dairy Research Institute, Karnal, India
| | - Anuradha Gupta
- Livestock production Management, ICAR – National Dairy Research Institute, Karnal, India
| | - Mayamitta Saini
- Livestock production Management, ICAR – National Dairy Research Institute, Karnal, India
| | - Indu Lathwal
- Livestock production Management, ICAR – National Dairy Research Institute, Karnal, India
- ICAR – CSWRI, Avikanagar, India
| | - Bharti Sharma
- Animal Nutrition division, ICAR – National Dairy Research Institute, Karnal, India
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Gahlot SC, Kumar S, Kumaresan A, Vairamuthu S, Saraf KK, Sreela L, Baithalu RK, Lathwal SS, Mohanty TK. Biochemical analysis of uterine fluid for identification of indicators for subclinical endometritis in the water buffalo (Bubalus bubalis). Reprod Domest Anim 2017; 53:48-53. [DOI: 10.1111/rda.13051] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/02/2017] [Accepted: 07/06/2017] [Indexed: 12/19/2022]
Affiliation(s)
- SC Gahlot
- Theriogenology Lab; Animal Reproduction Gynaecology & Obstetrics; National Dairy Research Institute; Karnal Haryana India
| | - S Kumar
- Theriogenology Lab; Animal Reproduction Gynaecology & Obstetrics; National Dairy Research Institute; Karnal Haryana India
| | - A Kumaresan
- Theriogenology Lab; Animal Reproduction Gynaecology & Obstetrics; National Dairy Research Institute; Karnal Haryana India
| | - S Vairamuthu
- Centralized Clinical Laboratory; Madras Veterinary College; TANUVAS; Chennai India
| | - KK Saraf
- Theriogenology Lab; Animal Reproduction Gynaecology & Obstetrics; National Dairy Research Institute; Karnal Haryana India
| | - L Sreela
- Theriogenology Lab; Animal Reproduction Gynaecology & Obstetrics; National Dairy Research Institute; Karnal Haryana India
| | - RK Baithalu
- Livestock Research Centre; National Dairy Research Institute; Karnal Haryana India
| | - SS Lathwal
- Livestock Research Centre; National Dairy Research Institute; Karnal Haryana India
| | - TK Mohanty
- Artificial Breeding Research Centre; National Dairy Research Institute; Karnal Haryana India
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Gahlot SC, Kumar S, Kumaresan A, Chand S, Baithalu RK, Lathika S, Patbandha TK, Lathwal SS, Mohanty TK. Efficiency of uterine fluid cytology in the diagnosis of subclinical endometritis in the water buffalo (Bubalus bubalis). Reprod Domest Anim 2016; 52:513-516. [PMID: 27966806 DOI: 10.1111/rda.12899] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2016] [Accepted: 10/24/2016] [Indexed: 11/30/2022]
Abstract
This study compared endometrial cytology vis-a-vis uterine fluid cytology for assessment of uterine health in clinically normal and subclinical endometritis (SE)-affected buffaloes. Uterine fluid samples and endometrial samples were collected from the buffaloes (n = 38) at oestrus using blue sheath and cytobrush, respectively. The smears were stained with Field stain for 3 minutes, and a minimum of 400 cells were counted in each smear for determination of the percentage of polymorphonuclear (PMN) leucocyte. The incidence of subclinical endometritis, based on the cytobrush cytology, was 23.08%. The correlation between cytobrush cytology with uterine fluid cytology was positive and significant (r = .37; p = .02). The ratio of PMN leucocyte in cytobrush cytology to uterine fluid cytology was 1:2.4. ROC analysis revealed that the threshold value of 6.16% PMN leucocyte in uterine fluid cytology showed a diagnostic sensitivity and specificity of 100% in differentiating normal from SE-affected buffaloes. In conclusion, collection of uterine fluid was easier compared to collection of endometrial samples using cytobrush and the percentage of PMN leucocyte in uterine fluid cytology can be used as a tool for diagnosis of subclinical endometritis in buffaloes.
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Affiliation(s)
- S C Gahlot
- Animal Reproduction Gynaecology & Obstetrics, National Dairy Research Institute, Karnal, Haryana, India
| | - S Kumar
- Animal Reproduction Gynaecology & Obstetrics, National Dairy Research Institute, Karnal, Haryana, India
| | - A Kumaresan
- Animal Reproduction Gynaecology & Obstetrics, National Dairy Research Institute, Karnal, Haryana, India
| | - S Chand
- Animal Reproduction Gynaecology & Obstetrics, National Dairy Research Institute, Karnal, Haryana, India
| | - R K Baithalu
- Animal Reproduction Gynaecology & Obstetrics, National Dairy Research Institute, Karnal, Haryana, India
| | - S Lathika
- Animal Reproduction Gynaecology & Obstetrics, National Dairy Research Institute, Karnal, Haryana, India
| | - T K Patbandha
- Animal Reproduction Gynaecology & Obstetrics, National Dairy Research Institute, Karnal, Haryana, India
| | - S S Lathwal
- Animal Reproduction Gynaecology & Obstetrics, National Dairy Research Institute, Karnal, Haryana, India
| | - T K Mohanty
- Animal Reproduction Gynaecology & Obstetrics, National Dairy Research Institute, Karnal, Haryana, India
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Narwaria US, Mehla RK, Verma KK, Lathwal SS, Yadav R, Verma AK. Study of short lactation in Sahiwal cattle at organized farm. Vet World 2016; 8:690-4. [PMID: 27047157 PMCID: PMC4774735 DOI: 10.14202/vetworld.2015.690-694] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2015] [Revised: 04/22/2015] [Accepted: 04/27/2015] [Indexed: 11/24/2022] Open
Abstract
Aim: The aim was to study the associated factors and extent of short lactations in Sahiwal cattle maintained under organized herd. Materials and Methods: The present study was conducted on Sahiwal cattle (n=530), utilizing 1724 lactation records with respect to lactation length (LL), spread over a period of 15 years (1997-2011), maintained at Livestock Research Center, National Dairy Research Institute, Karnal. Observations of LL were analyzed by descriptive statistical analysis in order to know the extent of short lactation of animals in the herd. Paternal Half sib method was used to estimate the genetic parameters, i.e., heritability, genetic, and phenotypic correlation. The influence of various non-genetic factors (season of calving, the period of calving, parity, type of calving, and season of drying) on LL was studied by least squares analysis of variance technique. Results: The least squares means for LL was found to be 215.83±3.08 days. Only 32.48% of total lactation records were fell in the range of 251-350 days of LL, while more than three-fourth (76%) of total observations were failed to reach the standard level of 305 milking days. LL class ranges from 251 to 300 days accommodated maximum number of observations (19.2%). The heritability estimate of LL was 0.22±0.07. Positive correlations were found between LL and service period, LL and 305 or less days milk yield, LL and calving interval; whereas dry period was negatively correlated with the LL. The least squares analysis had shown that LL was significantly (p<0.01) influenced by the period of calving, type of calving, and season of drying. Significantly higher LL (276.50±7.21 days) was found in animals calved in the first period than those calved in other periods. The cows dried during summer season had the shortest LL (188.48±7.68 days) as compared to other seasons. Conclusion: Present findings regarding short lactations occurrence may be alarming for the indigenous herd, demanding comprehensive study with the larger data set. Since LL was influenced by various environmental factors suggesting better managerial tools, besides special attention on the milch animals going to dry during the summer season.
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Affiliation(s)
- U S Narwaria
- Livestock Production and Management Section, National Dairy Research Institute, Karnal, Haryana - 132 001, India
| | - R K Mehla
- Livestock Production and Management Section, National Dairy Research Institute, Karnal, Haryana - 132 001, India
| | - K K Verma
- Livestock Production and Management Section, National Dairy Research Institute, Karnal, Haryana - 132 001, India
| | - S S Lathwal
- Livestock Production and Management Section, National Dairy Research Institute, Karnal, Haryana - 132 001, India
| | - Rajnarayan Yadav
- Livestock Production and Management Section, National Dairy Research Institute, Karnal, Haryana - 132 001, India
| | - A K Verma
- Livestock Production and Management Section, National Dairy Research Institute, Karnal, Haryana - 132 001, India
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12
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Affiliation(s)
- B Prakash
- National Institute of Animal Genetics/National Bureau of Animal Genetic Resources, Haryana, India
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13
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Affiliation(s)
- B Prakash
- National Bureau of Animal Genetic Resources/National Institute of Animal Genetics, Haryana, India
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14
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Affiliation(s)
- B Prakash
- National Institute of Animal Genetics, Haryana, India
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