Publication date: Available online 9 March 2017
Source:Journal of Dairy Science
Author(s): M. Haile-Mariam, J.E. Pryce
Lactose is a major component of milk (typically around 5% of composition) that is not usually directly considered in national genetic improvement programs of dairy cattle. Daily test-day lactose yields and percentage data from pasture-based seasonal calving herds in Australia were analyzed to assess if lactose content can be used for predicting fitness traits and if an additional benefit is achieved by including lactose yield in selecting for milk yield traits. Data on lactose percentage collected from 2007 to 2014, from about 600 herds, were used to estimated genetic parameters for lactose percentage and lactose yield and correlations with other milk yield traits, somatic cell count (SCC), calving interval (CIV), and survival. Daily test-day data were analyzed using bivariate random regression models. In addition, multi-trait models were also performed mainly to assess the value of lactose to predict fitness traits. The heritability of lactose percentage (0.25 to 0.37) was higher than lactose yield (0.11 to 0.20) in the first parity. Genetically, the correlation of lactose percentage with protein percentage varied from 0.3 at the beginning of lactation to −0.24 at the end of the lactation in the first parity. Similar patterns in genetic correlations were also observed in the second and third parity. At all levels (i.e., genetic, permanent environmental, and residual), the correlation between milk yield and lactose yield was close to 1. The genetic and permanent environmental correlations between lactose percentage and SCC were stronger in the second and third parity and toward the end of the lactation (−0.35 to −0.50) when SCC levels are at their maximum. The genetic correlation between lactose percentage in the first 120 d and CIV (−0.23) was similar to correlation of CIV with protein percentage (−0.28), another component trait with the potential to predict fertility. Furthermore, the correlations of estimated breeding values of lactose percentage and estimated breeding values of traits such as survival, fertility, SCC, and angularity suggest that the value of lactose percentage as a predictor of fitness traits is weak. The results also suggest that including lactose yield as a trait into the breeding objective is of limited value due to the high positive genetic correlation between lactose yield and protein yield, the trait highly emphasized in Australia. However, recording lactose percentage as part of the routine milk recording system will enable the Australian dairy industry to respond quickly to any future changes and market signals.
http://ift.tt/2lHoba0
Σφακιανάκης Αλέξανδρος
ΩτοΡινοΛαρυγγολόγος
Αναπαύσεως 5 Άγιος Νικόλαος
Κρήτη 72100
00302841026182
00306932607174
alsfakia@gmail.com
Αρχειοθήκη ιστολογίου
-
►
2023
(391)
- ► Φεβρουαρίου (200)
- ► Ιανουαρίου (191)
-
►
2022
(2843)
- ► Δεκεμβρίου (161)
- ► Σεπτεμβρίου (219)
- ► Φεβρουαρίου (264)
- ► Ιανουαρίου (280)
-
►
2021
(5625)
- ► Δεκεμβρίου (231)
- ► Σεπτεμβρίου (345)
- ► Φεβρουαρίου (620)
-
►
2020
(2065)
- ► Δεκεμβρίου (535)
- ► Σεπτεμβρίου (222)
- ► Φεβρουαρίου (28)
-
►
2019
(9608)
- ► Δεκεμβρίου (19)
- ► Σεπτεμβρίου (54)
- ► Φεβρουαρίου (3791)
- ► Ιανουαρίου (3737)
-
►
2018
(69720)
- ► Δεκεμβρίου (3507)
- ► Σεπτεμβρίου (3851)
- ► Φεβρουαρίου (8116)
- ► Ιανουαρίου (7758)
-
▼
2017
(111579)
- ► Δεκεμβρίου (7718)
- ► Σεπτεμβρίου (7549)
-
▼
Μαρτίου
(11966)
-
▼
Μαρ 09
(457)
- Voice outcomes for early laryngeal cancer.
- Social and quality of life impact using a voice pr...
- Dysphagia management in tracheostomized patients: ...
- Voice and swallowing outcomes for adults undergoin...
- The use of practice guidelines in the management o...
- Self-reported postoperative recovery in children a...
- Foreign body aspiration in children: Focus on the ...
- Anti-angiogenic treatment for breast cancer?
- The role of drug-drug interactions in prostate can...
- Incidental Findings on Pediatric Abdominal Magneti...
- Dosimetric Analysis of Liver Toxicity Post Liver M...
- Outcomes and Toxicity following High-Dose Radiatio...
- Persistent nasal carriers of Acinetobacter baumann...
- A New Keystone Flap “Plus” Design: Case Series and...
- Failure to Diagnose an Incompetent Cervix,Prematur...
- Permanent prostate brachytherapy pubic arch evalua...
- Assessment of clinical and radiologic differences ...
- Use of hepatobiliary phase images in Gd-EOB-DTPA-e...
- Unusual ultrasound appearance of small bowel intus...
- Contrast-enhanced ultrasound and computed tomograp...
- Neocortical and hippocampal TREM2 protein levels d...
- Engineering intravaginal vaccines to overcome muco...
- Islet encapsulation with polyphenol coatings decre...
- Tolerability, usability and acceptability of disso...
- TANTIGEN: a comprehensive database of tumor T cell...
- Murine Th17 cells utilize IL-2 receptor gamma chai...
- Acoustic Context Alters Vowel Categorization in Pe...
- Verrucarin A and roridin E produced on spinach by ...
- Withdrawing ASV therapy in clinical practice: tria...
- Risk of developing obstructive sleep apnea among w...
- Natural course and potential prognostic factors fo...
- The Transient Receptor Potential Melastatin 7 Chan...
- Reactivating p53 and Inducing Tumor Apoptosis (RIT...
- Noninvasive Bioluminescence Imaging of AKT Kinase ...
- Emergency cricothyrotomy: temporary measure or def...
- Foreign body aspiration in children: Focus on the ...
- Close surgical margin after conservative parotidec...
- Our auditory results using the Vibrant Soundbridge...
- The clinical manifestations of vestibular migraine...
- Comparing performance of Fastrach ILMA vs flexible...
- Targeting BMI1+ Cancer Stem Cells Overcomes Chemor...
- PRC2 Facilitates the Regulatory Topology Required ...
- Mex3a Marks a Slowly Dividing Subpopulation of Lgr...
- New in vivo model to analyse the expression of ang...
- Stimuli-responsive shell cross-linked micelles fro...
- Novel endodontic sealers induce cell cytotoxicity ...
- Root canal morphology and variations in mandibular...
- Lipid parameters in obese and normal weight patien...
- Odontogenic differentiation potential of human den...
- Integrative Proteomics and Phosphoproteomics Profi...
- Concentration-dependent alterations in gene expres...
- Iron-based adsorbent prepared from Litchi peel bio...
- Amelioration of boron toxicity in sweet pepper as ...
- Effect of foliar application of plant growth regul...
- Withered on the stem: is bamboo a seasonally limit...
- Frequencies of erythrocyte nuclear abnormalities a...
- Using early life stages of marine animals to scree...
- Toxic effect of nonylphenol on the marine macroalg...
- Unique characteristics of algal dissolved organic ...
- Precipitation and air temperature control the vari...
- The death of the circulatory system diseases in Ch...
- Slow-release formulations of the herbicide piclora...
- Migration of nitrate, nitrite, and ammonia through...
- Investigations of temperature and pH variations on...
- Enhancing filterability of activated sludge from l...
- Enhanced heterogeneous photo-Fenton process modifi...
- Characterization of ferromagnetic sludge-based act...
- High contribution of the particulate uptake pathwa...
- Estimation of decrease in cancer risk by biodegrad...
- Methyl acrylate modified apple pomace as promising...
- Editorial Board
- Identification of novel autoantigens via mass spec...
- Synaptic proteome changes in the hypothalamus of m...
- Earwax: A neglected body secretion or a step ahead...
- Broken Heart Syndrome – An intra operative complic...
- Our auditory results using the Vibrant Soundbridge...
- Addiction: an underestimated problem in psoriasis ...
- The clinical manifestations of vestibular migraine...
- Our auditory results using the Vibrant Soundbridge...
- The clinical manifestations of vestibular migraine...
- Hypofractionated radiotherapy in older patients wi...
- Hypofractionated radiotherapy in older patients wi...
- Vitamin D supplementation in pregnancy, prenatal 2...
- Three-dimensional cardiac microtissues composed of...
- Engineering intravaginal vaccines to overcome muco...
- G protein-coupled calcium-sensing receptor is a cr...
- Tolerability, usability and acceptability of disso...
- Surface engineering of semiconducting polymer nano...
- Incidence of hidradenitis suppurativa in the Unite...
- Calciphylaxis: Comparison of radiologic imaging an...
- Pediatric Stevens-Johnson syndrome and toxic epide...
- Histopathological changes in morphea and their cli...
- Proximal upper limb jerking: important clinical si...
- Graphene oxide functionalized long period grating ...
- Quantum-dots-based photoelectrochemical bioanalysi...
- Label-free identification of activated T lymphocyt...
- Nanosphere-based one-step strategy for efficient a...
- DNA-mediated inhibition of peroxidase-like activit...
- Multiplex detection of extensively drug resistant ...
- A highly sensitive electrochemical immunosensor fo...
-
▼
Μαρ 09
(457)
- ► Φεβρουαρίου (10753)
- ► Ιανουαρίου (10529)
-
►
2016
(16402)
- ► Δεκεμβρίου (7478)
- ► Φεβρουαρίου (900)
- ► Ιανουαρίου (1250)
! # Ola via Alexandros G.Sfakianakis on Inoreader
Η λίστα ιστολογίων μου
Εγγραφή σε:
Σχόλια ανάρτησης (Atom)
Αρχειοθήκη ιστολογίου
-
►
2023
(391)
- ► Φεβρουαρίου (200)
- ► Ιανουαρίου (191)
-
►
2022
(2843)
- ► Δεκεμβρίου (161)
- ► Σεπτεμβρίου (219)
- ► Φεβρουαρίου (264)
- ► Ιανουαρίου (280)
-
►
2021
(5625)
- ► Δεκεμβρίου (231)
- ► Σεπτεμβρίου (345)
- ► Φεβρουαρίου (620)
-
►
2020
(2065)
- ► Δεκεμβρίου (535)
- ► Σεπτεμβρίου (222)
- ► Φεβρουαρίου (28)
-
►
2019
(9608)
- ► Δεκεμβρίου (19)
- ► Σεπτεμβρίου (54)
- ► Φεβρουαρίου (3791)
- ► Ιανουαρίου (3737)
-
►
2018
(69720)
- ► Δεκεμβρίου (3507)
- ► Σεπτεμβρίου (3851)
- ► Φεβρουαρίου (8116)
- ► Ιανουαρίου (7758)
-
▼
2017
(111579)
- ► Δεκεμβρίου (7718)
- ► Σεπτεμβρίου (7549)
-
▼
Μαρτίου
(11966)
-
▼
Μαρ 09
(457)
- Voice outcomes for early laryngeal cancer.
- Social and quality of life impact using a voice pr...
- Dysphagia management in tracheostomized patients: ...
- Voice and swallowing outcomes for adults undergoin...
- The use of practice guidelines in the management o...
- Self-reported postoperative recovery in children a...
- Foreign body aspiration in children: Focus on the ...
- Anti-angiogenic treatment for breast cancer?
- The role of drug-drug interactions in prostate can...
- Incidental Findings on Pediatric Abdominal Magneti...
- Dosimetric Analysis of Liver Toxicity Post Liver M...
- Outcomes and Toxicity following High-Dose Radiatio...
- Persistent nasal carriers of Acinetobacter baumann...
- A New Keystone Flap “Plus” Design: Case Series and...
- Failure to Diagnose an Incompetent Cervix,Prematur...
- Permanent prostate brachytherapy pubic arch evalua...
- Assessment of clinical and radiologic differences ...
- Use of hepatobiliary phase images in Gd-EOB-DTPA-e...
- Unusual ultrasound appearance of small bowel intus...
- Contrast-enhanced ultrasound and computed tomograp...
- Neocortical and hippocampal TREM2 protein levels d...
- Engineering intravaginal vaccines to overcome muco...
- Islet encapsulation with polyphenol coatings decre...
- Tolerability, usability and acceptability of disso...
- TANTIGEN: a comprehensive database of tumor T cell...
- Murine Th17 cells utilize IL-2 receptor gamma chai...
- Acoustic Context Alters Vowel Categorization in Pe...
- Verrucarin A and roridin E produced on spinach by ...
- Withdrawing ASV therapy in clinical practice: tria...
- Risk of developing obstructive sleep apnea among w...
- Natural course and potential prognostic factors fo...
- The Transient Receptor Potential Melastatin 7 Chan...
- Reactivating p53 and Inducing Tumor Apoptosis (RIT...
- Noninvasive Bioluminescence Imaging of AKT Kinase ...
- Emergency cricothyrotomy: temporary measure or def...
- Foreign body aspiration in children: Focus on the ...
- Close surgical margin after conservative parotidec...
- Our auditory results using the Vibrant Soundbridge...
- The clinical manifestations of vestibular migraine...
- Comparing performance of Fastrach ILMA vs flexible...
- Targeting BMI1+ Cancer Stem Cells Overcomes Chemor...
- PRC2 Facilitates the Regulatory Topology Required ...
- Mex3a Marks a Slowly Dividing Subpopulation of Lgr...
- New in vivo model to analyse the expression of ang...
- Stimuli-responsive shell cross-linked micelles fro...
- Novel endodontic sealers induce cell cytotoxicity ...
- Root canal morphology and variations in mandibular...
- Lipid parameters in obese and normal weight patien...
- Odontogenic differentiation potential of human den...
- Integrative Proteomics and Phosphoproteomics Profi...
- Concentration-dependent alterations in gene expres...
- Iron-based adsorbent prepared from Litchi peel bio...
- Amelioration of boron toxicity in sweet pepper as ...
- Effect of foliar application of plant growth regul...
- Withered on the stem: is bamboo a seasonally limit...
- Frequencies of erythrocyte nuclear abnormalities a...
- Using early life stages of marine animals to scree...
- Toxic effect of nonylphenol on the marine macroalg...
- Unique characteristics of algal dissolved organic ...
- Precipitation and air temperature control the vari...
- The death of the circulatory system diseases in Ch...
- Slow-release formulations of the herbicide piclora...
- Migration of nitrate, nitrite, and ammonia through...
- Investigations of temperature and pH variations on...
- Enhancing filterability of activated sludge from l...
- Enhanced heterogeneous photo-Fenton process modifi...
- Characterization of ferromagnetic sludge-based act...
- High contribution of the particulate uptake pathwa...
- Estimation of decrease in cancer risk by biodegrad...
- Methyl acrylate modified apple pomace as promising...
- Editorial Board
- Identification of novel autoantigens via mass spec...
- Synaptic proteome changes in the hypothalamus of m...
- Earwax: A neglected body secretion or a step ahead...
- Broken Heart Syndrome – An intra operative complic...
- Our auditory results using the Vibrant Soundbridge...
- Addiction: an underestimated problem in psoriasis ...
- The clinical manifestations of vestibular migraine...
- Our auditory results using the Vibrant Soundbridge...
- The clinical manifestations of vestibular migraine...
- Hypofractionated radiotherapy in older patients wi...
- Hypofractionated radiotherapy in older patients wi...
- Vitamin D supplementation in pregnancy, prenatal 2...
- Three-dimensional cardiac microtissues composed of...
- Engineering intravaginal vaccines to overcome muco...
- G protein-coupled calcium-sensing receptor is a cr...
- Tolerability, usability and acceptability of disso...
- Surface engineering of semiconducting polymer nano...
- Incidence of hidradenitis suppurativa in the Unite...
- Calciphylaxis: Comparison of radiologic imaging an...
- Pediatric Stevens-Johnson syndrome and toxic epide...
- Histopathological changes in morphea and their cli...
- Proximal upper limb jerking: important clinical si...
- Graphene oxide functionalized long period grating ...
- Quantum-dots-based photoelectrochemical bioanalysi...
- Label-free identification of activated T lymphocyt...
- Nanosphere-based one-step strategy for efficient a...
- DNA-mediated inhibition of peroxidase-like activit...
- Multiplex detection of extensively drug resistant ...
- A highly sensitive electrochemical immunosensor fo...
-
▼
Μαρ 09
(457)
- ► Φεβρουαρίου (10753)
- ► Ιανουαρίου (10529)
-
►
2016
(16402)
- ► Δεκεμβρίου (7478)
- ► Φεβρουαρίου (900)
- ► Ιανουαρίου (1250)
Δεν υπάρχουν σχόλια:
Δημοσίευση σχολίου