Relationship Between Some Teat and Body Measurements of Holstein Cows and Sub-Clinical Mastitis and Milk Yield

Bardakçioğlu, Hüsnü Erbay; Sekkin, Selim; Toplu, H. D. O.

doi:10.3923/javaa.2011.1735.1737

Cited by 20 publications

(15 citation statements)

References 3 publications

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“…Present study revealed that flat and inverted teat-end shape may be a risk factor for intra-mammary infection as we found highest SCC level for flat teat-end followed by inverted and least for pointed teat-end and the effect of teat-end shape on SCC was significant (p<0.01). The probability of mastitis occurring varies considerably between different teat shape, sizes, and morphology of the teat-end [ 17 ]. There are reports of the significant effect of teat-end shape with higher log SCC value for the inverted teat-end [ 16 ].…”

Section: Discussionmentioning

confidence: 99%

Relationship of udder and teat conformation with intra-mammary infection in crossbred cows under hot-humid climate

Bharti¹,

Bhakat²,

Pankaj³

et al. 2015

Vet World

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Aim:The present study was aimed to investigate the relationship of udder shape, teat-end shape, teat length, and teat diameter with intra-mammary infection in Jersey crossbred cows under hot-humid climate.Materials and Methods:A total of 24 lactating Jersey crossbred cows were evaluated for udder shape (pendulous/regular) and teat-end shape (flat/inverted/pointed) by visual examination, while teat length and teat diameter were measured using vernier caliper. Monthly milk sampling was done for 4 months of duration. Few quarters were found as blind or non-functional and so, a total of 366 quarter wise milk samples were collected at the monthly interval and subjected to somatic cell count (SCC) microscopically. The data on SCC were transformed into log scale and analyzed.Results:There was a significant (p<0.01) effect of udder shape and teat-end shape on SCC level. The mean SCC level for pendulous udder was significantly (p<0.05) higher as compared to the regular shaped udder. Similarly, significantly (p<0.05) a higher level of mean SCC was found in flat teat-end shape. A significant (p<0.01) correlation was found between SCC and teat length as well as teat diameter.Conclusion:In conclusion, pendulous udder, flat and inverted teat-end, very long and thick teat were more susceptible to intra-mammary infection in Jersey crossbred cows and these traits must be considered accordingly while selecting dairy animals for future milk production.

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Section: Discussionmentioning

confidence: 99%

Relationship of udder and teat conformation with intra-mammary infection in crossbred cows under hot-humid climate

Bharti¹,

Bhakat²,

Pankaj³

et al. 2015

Vet World

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“…), and heifers with greater hip height subsequently produce more milk (Bardakcioglu et al . ). In addition, strongly significantly associated QTL and candidate genes have been identified for body structure in various cattle populations (Table ; Cole et al .…”

Section: Descriptive Statistics Of Body Measurement Traits In Chinesementioning

confidence: 97%

Genome‐wide association study reveals candidate genes associated with body measurement traits in Chinese Wagyu beef cattle

Xia

Chang

et al. 2019

Animal Genetics

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We performed a genome-wide association study to identify candidate genes for body measurement traits in 463 Wagyu beef cattle typed with the Illumina Bovine HD 770K SNP array. At the genome-wide level, we detected 18, five and one SNPs associated with hip height, body height and body length respectively. In total, these SNPs are within or near 11 genes, six of which (PENK, XKR4, IMPAD1, PLAG1, CCND2 and SNTG1) have been reported previously and five of which (CSMD3, LAP3, SYN3, FAM19A5 and TIMP3) are novel candidate genes that we found to be associated with body measurement traits. Further exploration of these candidate genes will facilitate genetic improvement in Chinese Wagyu beef cattle.

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“…In addition, daily body linear measurements, specifically body height (BH) and HH, two highly reliable and accurate indicators for body weight, are easier to obtained than body weight [11]. Furthermore, good depth of HS in cattle is a sign of good feet and leg conformation [12], and dairy cows with higher HH will subsequently have better milk performance [13]. However, there is little information on the molecular mechanisms of body size traits in Chinese Simmental beef cattle.…”

Section: Introductionmentioning

confidence: 99%

Multiple association analysis of loci and candidate genes that regulate body size at three growth stages in Simmental beef cattle

An¹,

Liu²,

Xia

et al. 2020

BMC Genet

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Background: Body size traits as one of the main breeding selection criteria was widely used to monitor cattle growth and to evaluate the selection response. In this study, body size was defined as body height (BH), body length (BL), hip height (HH), heart size (HS), abdominal size (AS), and cannon bone size (CS). We performed genome-wide association studies (GWAS) of these traits over the course of three growth stages (6, 12 and 18 months after birth) using three statistical models, single-trait GWAS, multi-trait GWAS and LONG-GWAS. The Illumina Bovine HD 770 K BeadChip was used to identify genomic single nucleotide polymorphisms (SNPs) in 1217 individuals. Results: In total, 19, 29, and 10 significant SNPs were identified by the three models, respectively. Among these, 21 genes were promising candidate genes, including SOX2, SNRPD1, RASGEF1B, EFNA5, PTBP1, SNX9, SV2C, PKDCC, SYNDIG1, AKR1E2, and PRIM2 identified by single-trait analysis; SLC37A1, LAP3, PCDH7, MANEA, and LHCGR identified by multi-trait analysis; and P2RY1, MPZL1, LINGO2, CMIP, and WSCD1 identified by LONG-GWAS. Conclusions: Multiple association analysis was performed for six growth traits at each growth stage. These findings offer valuable insights for the further investigation of potential genetic mechanism of growth traits in Simmental beef cattle.

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Relationship Between Some Teat and Body Measurements of Holstein Cows and Sub-Clinical Mastitis and Milk Yield

Cited by 20 publications

References 3 publications

Relationship of udder and teat conformation with intra-mammary infection in crossbred cows under hot-humid climate

Relationship of udder and teat conformation with intra-mammary infection in crossbred cows under hot-humid climate

Genome‐wide association study reveals candidate genes associated with body measurement traits in Chinese Wagyu beef cattle

Multiple association analysis of loci and candidate genes that regulate body size at three growth stages in Simmental beef cattle

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