Weight adjustment equation for hair sheep raised in warm conditions

The influence of nano-emulsified curcumin (NEC) added to the hair sheep milk, prior to cheese-making, on the chemical composition, lipolysis, and proteolysis of manchego-style cheeses were evaluated throughout 80 days of ripening. The addition of NEC to the milk resulted in cheeses with the same moisture content (42.23%), total protein (23.16%), and water activity (0.969) (p > 0.05). However, it increased the fat and ash levels from 26.82% and 3.64% in B 10 ppm to 30.08% and 3.85% in C 10 ppm, respectively, at the end of the ripening (p < 0.05). The total phenolic content and antioxidant activity of experimental cheeses increased during ripening, and the fatty acid groups showed significant changes occurred to a greater extent in the first days of ripening (p < 0.05). The lipolysis increased consistently in all cheeses until day 40 of ripening, to decrease at the end, while proteolysis increased during all ripening time in all samples (p < 0.05); the addition of NEC did not alter the primary proteolysis of manchego-style cheeses, but it modified secondary proteolysis and lipolysis (p < 0.05). Principal component analysis was useful for discriminating cheeses according to their chemical composition and classified into four groups according to their ripening time. This research highlights the potential of CNE to fortify dairy foods to enhance their functionality.

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Effect of season and frequency of embryo collections on superovulatory response and embryo recovery in Santa Inês hair sheep

Small Ruminant Research ◽

10.1016/j.smallrumres.2021.106441 ◽

2021 ◽

pp. 106441

Author(s):

Monique de Albuquerque Lagares ◽

Fabiana Cristina Varago ◽

Valéria Spyridion Moustacas ◽

Valentim Arabicano Gheller ◽

Rafael Romero Nicolino ◽

...

Keyword(s):

Hair Sheep ◽

Embryo Recovery ◽

Santa Inês

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PSX-28 Using estrus detection patches or a ram wearing a marking harness to monitor estrus in synchronized hair sheep ewes

Journal of Animal Science ◽

10.1093/jas/skaa278.802 ◽

2020 ◽

Vol 98 (Supplement_4) ◽

pp. 460-460

Author(s):

Robert W Godfrey ◽

Sue A Lakos

Keyword(s):

Artificial Insemination ◽

Post Partum ◽

Hair Sheep ◽

Cumulative Percentage ◽

Estrous Synchronization ◽

Estrus Detection ◽

Visual Observations

Abstract Determining when a ewe is in estrus is important when using estrous synchronization and artificial insemination in sheep. This study was conducted to compare the efficacy of estrus detection patches (Estrotect™) and rams wearing marking harnesses for monitoring estrus in synchronized hair sheep ewes. St. Croix White (STX) ewes (3.5 ± 0.3 y of age, 89.7 ± 2.2 d post-partum) were synchronized using progesterone releasing inserts (Eazi-Breed™ CIDR) for 12 d. On the day of CIDR removal (d 1) ewes were administered prostaglandin (Lutalyse®; 15 mg i.m.) and placed with fertile STX rams in 0.55 ha pastures. One group of ewes (n =10; MH) was placed with a ram wearing a marking harness and a second group (n = 16; EP) had estrus detection patches placed on their rumps before being placed with a ram without a harness. Estrus detection was conducted using visual observations twice a day through d 7. A ewe was considered to be in estrus when crayon marks were observed on the rump or the patch was activated, based on product guidelines. Cumulative percentage of ewes in estrus was analyzed using the CATMOD procedure with treatment, day and the interaction in the model. All patches stayed in place on the EP ewes through d 7. By d 4 90% of MH ewes and 75% of EP ewes had been observed in estrus (P < 0.05). By d 7 90% of MH ewes and 81.25% of EP ewes had been observed in estrus (P < 0.05). With costs of $1.33 per patch or $29.33 for one harness and crayon the patches may be more economical when dealing with up to 21 ewes per ram. Estrus detection patches can be used on hair sheep ewes to detect estrus just as effectively as a ram with a marking harness.

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Effects of Sericea Lespedeza on Feed Intake, Digestion, and Ruminal Methane Emission in Hair Sheep

Journal of Animal Science ◽

10.1093/jas/skab096.075 ◽

2021 ◽

Vol 99 (Supplement_2) ◽

pp. 41-41

Author(s):

Luana L Ribeiro ◽

Ryszard Puchala ◽

Arthur L Goetsch

Keyword(s):

Methane Emission ◽

Feed Intake ◽

Dry Matter ◽

Coconut Oil ◽

Mixed Effects ◽

Repeated Measure ◽

Lespedeza Cuneata ◽

Hair Sheep ◽

Initial Body Weight ◽

Sericea Lespedeza

Abstract Eighteen Katahdin (initial body weight of 74 kg; SEM=1.8) and 18 St. Croix ewes (55 kg; SEM=1.3) were used in an experiment with four 6-wk periods to determine effects of dietary level of Sericea lespedeza (Lespedeza cuneata) containing 5.8% condensed tannins (dry matter; DM) and other supplemental ingredients on feed intake, digestion, and ruminal methane emission. Diets were consumed ad libitum and included a concentrate supplement at 0.45% BW (DM). Alfalfa was the basal forage for control (CON), ionophore (ION; lasalocid at 33 mg/kg DM), coconut oil (3%; CCO), and soybean oil (3%; SBO) diets, and forage in moderate- and high-lespedeza diets was a 1:1 mixture of alfalfa and lespedeza and all lespedeza, respectively (MSL and HSL, respectively). Data were analyzed with a 2 x 6 factorial arrangement of treatments, period as a repeated measure, and a mixed effects model. Digestion and methane emission were determined in weeks 4, 10, 16, and 22. Total DM intake was similar among treatments (P = 0.070) but numerically greatest for HSL (1,197, 1,297, 1,491, 1,203, 1,195, and 1,207 g/d; SEM=81.1), OM digestibility ranked (P < 0.05) CON, ION, CCO, and SBO > MSL > HSL (69.2, 57.6, 50.3, 66.3, 66.0, and 68.7%; SEM=1.57), and digestible OM intake was similar among treatments (P = 0.517; 697, 607, 589, 598, 635, and 690 g/d for CON, MSL, HSL, ION, CCO, and SBO, respectively; SEM=50.4). There were no interactions involving time in ruminal methane emission, which was greatest among treatments for CON (P < 0.05) in MJ/d (1.39, 0.93, 0.90, 0.92, 0.85, and 0.96; SEM=0.069) and relative to digestible energy intake (20.6, 15.7, 16.8, 16.1, 13.7, and 13.9% for CON, MSL, HSL, ION, CCO, and SBO, respectively; SEM=1.223). In conclusion, dietary inclusion of Sericea lespedeza may offer a natural and sustainable means of decreasing ruminal methane emission by hair sheep as previously shown in goats, with a magnitude of impact similar to that of some other supplemental dietary ingredients.

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Estimates of the Repeatability for Growth Characteristics in Colombian Hair Sheep

Indian Journal of Science and Technology ◽

10.17485/ijst/2018/v11i46/137540 ◽

2017 ◽

Vol 11 (46) ◽

pp. 1-5

Author(s):

Donicer Montes-Vergara ◽

Jaime De La Ossa-V ◽

Alexander Perez-Cordero ◽

◽

...

Keyword(s):

Growth Characteristics ◽

Hair Sheep

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142 Reproductive performance of land race hair sheep ewes in different breeding seasons under a semi-continuous production

Journal of Animal Science ◽

10.1093/jas/skz397.178 ◽

2020 ◽

Vol 98 (Supplement_2) ◽

pp. 76-76

Author(s):

Stephan Wildeus ◽

Dahlia O’Brien

Keyword(s):

Pregnancy Rate ◽

Litter Size ◽

Production System ◽

Continuous Production ◽

Transrectal Ultrasound ◽

Late Gestation ◽

Production Cycle ◽

Hair Sheep ◽

Mating Period ◽

Lamb Survival

Abstract A system for semi-continuous lamb production was evaluated using Barbados Blackbelly and St. Croix hair sheep ewes under 8-mo accelerated mating. Ewes were managed in a forage-based production system using rotational grazing. Two flocks of ewes (n = 30–35), equally representing the breeds, were bred 4 mo apart. Ewes were synchronized by feeding melengestrol acetate for 10 d, and mated in two single sire groups to like breed sires in November (NOV), March (MAR), and July (JUL) in a 25-d mating period. Pregnancy was recorded by transrectal ultrasound 22 d after breeding. Ewes were supplemented with corn/soybean meal during late gestation (0.75% of BW) and during lactation (1.5% of BW). They lambed on pasture with limited supervision, and lambs were weaned at 2 mo of age. Lambs had access to the supplement provided to ewes. Ewe performance (pregnancy rate, litter size, lamb survival, and birth and weaning weight) was recorded during a 2 yr production cycle, and analyzed for the effect of mating season. Pregnancy rate was not statistically different (P > 0.1) between season, and ranged from 93.9% in NOV, to 85.9 and 86.6% in MAR and JUL. Litter size (lambs born/ewe lambing) was higher (P < 0.05) in NOV (2.09) than MAR (1.68) and JUL (1.82). Lamb survival at birth was reduced (P < 0.001) in JUL (86.5%) compared to NOV (99%) and MAR (100 %), but was not different between seasons for survival to weaning (86 to 90%). Lamb birth weights were higher (P < 0.05) in MAR (3.16 kg) than JUL (2.99 kg), with NOV (3.05 kg) intermediate, while lamb weaning weights were higher (P < 0.001) in NOV (13.6 kg) compared with MAR (11.9 kg) and JUL (11.4 kg) mating. Data suggest that dual flock, accelerated mating of landrace hair sheep ewes can produce lamb cohorts of similar size in 4 mo intervals under a low-input, forage-based production system.

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Use of eGFR instead of creatinine in exclusion criteria for derivation of calcium adjustment equation

Annals of Clinical Biochemistry International Journal of Laboratory Medicine ◽

10.1177/00045632211016504 ◽

2021 ◽

pp. 000456322110165

Author(s):

N Jassam ◽

D Turnock ◽

JH Barth

Keyword(s):

Exclusion Criteria ◽

Adjustment Equation

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Validation of a locally derived serum calcium adjustment equation: relationship with total 25(OH) vitamin D and PTH levels

Journal of Clinical Pathology ◽

10.1136/jclinpath-2016-203663 ◽

2016 ◽

Vol 70 (1) ◽

pp. 69-74 ◽

Cited By ~ 1

Author(s):

Jonathan Joseph Scargill ◽

John Mark Guy

Keyword(s):

Vitamin D ◽

Fold Increase ◽

Reference Interval ◽

Albumin Concentration ◽

Vitamin D Levels ◽

Significant Difference ◽

25 Oh Vitamin D ◽

New Equation ◽

The Uk ◽

Adjustment Equation

AimsMany clinical laboratories in the UK use a standard equation to adjust total calcium for albumin concentration. To assess the validity of this practice, we assessed the effect of the use of a traditional and locally derived calcium adjustment equation on parathyroid hormone (PTH) and 25(OH, hydroxy) vitamin D levels.MethodsSamples requested for calcium and albumin measurement over a 6 month period that met inclusion criteria were used to derive a calcium adjustment equation (n=60 941). The traditional and locally derived calcium adjustment equations were then applied to a second cohort of adult patients that underwent calcium measurement over a 1 year period (n=275 456). Patients were classified as hypocalcaemic, normocalcaemic or hypercalcaemic using a UK Pathology Harmony adjusted calcium reference interval (2.2–2.6 mmol/L).ResultsThe local calcium adjustment equation provided a 7.1-fold reduction in the prevalence of hypocalcaemia. Patients classified as hypocalcaemic using the locally derived equation had statistically significantly lower 25(OH) vitamin D and higher PTH levels. A 2.4-fold increase in the prevalence of hypercalcaemia was also observed using the new equation, but with no significant difference in 25(OH) vitamin D or PTH levels.ConclusionsA locally derived calcium adjustment equation reclassified the calcium status of 61 278 (22%) patients. Patients classified as hypocalcaemic by the locally derived equation had significantly lower 25(OH) vitamin D and significantly higher PTH values, providing evidence that use of this adjustment equation generates adjusted calcium results of greater clinical relevance. This study provides further and novel evidence that individual laboratories should determine local equations for adjusted calcium where possible.

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