scholarly journals Early growth, backfat thickness and body condition has major effect on early heifer pregnancy in Nellore cattle

2022 ◽  
Vol 94 (1) ◽  
Author(s):  
LUDMILLA C. BRUNES ◽  
FERNANDO S. BALDI ◽  
MARCOS F. OLIVEIRA E COSTA ◽  
GRACIELA QUINTANS ◽  
GEORGETT BANCHERO ◽  
...  
Keyword(s):  
Body Condition ◽  
Major Effect ◽  
Early Growth ◽  
Backfat Thickness ◽  
Nellore Cattle

Leptin interrelationships to energy-related metabolites and hormones in fed and fasted sheep

2002 ◽  
Vol 2002 ◽  
pp. 87-87 ◽  
Author(s):  
A.R.G. Wylie ◽  
D.J. Devlin ◽  
A.J. Bjourson
Keyword(s):  
Body Weight ◽  
Dairy Cows ◽  
Body Fat ◽  
Body Condition ◽  
Previous Investigation ◽  
Body Condition Score ◽  
Backfat Thickness ◽  
Early Lactation ◽  
Weak Correlation ◽  
Condition Score

A review of published leptin data for growing lambs, older ewes and mature dairy cows in late lactation showed that only 0.30-0.37 of the variation in blood leptin concentration was explained by differences in body fat variably expressed as % of liveweight (LW), backfat thickness and body condition score (BCS) respectively (Wylieet al., 2002). In dairy cows between 15d and 226d postpartum, Wylieet al(2002) observed no overall correlation between leptin at slaughter and lipid expressed as % of LW, empty body weight or carcase weight and only a weak correlation in cows in mid-lactation. Losses of fat during early lactation may ‘uncouple’ the link between leptin and fat and produce a bias across all of lactation. Another explanation is that leptin may be more closely linked with lipogenesis than with the amount of stored fat. This study revisits some metabolite and hormone data from a previous investigation of IGF-1 changes in fed, fasted and re-fed sheep in the light of more recently obtained leptin concentrations in the same animals.

Do windbreaks minimize stress on cattle grazing foothill winter range?

2000 ◽  
Vol 80 (2) ◽  
pp. 265-272 ◽  
Author(s):  
B. E. Olson ◽  
R. T. Wallander ◽  
J. A. Paterson
Keyword(s):  
Immune Response ◽  
Stress Response ◽  
Body Condition ◽  
Cost Effective ◽  
Cattle Grazing ◽  
Backfat Thickness ◽  
Weight Changes ◽  
Northern Latitudes ◽  
Cell Mediated Immune Response ◽  
Body Condition Scores

Cattle often graze foothill rangelands in northern latitudes as a cost-effective alternative to being fed hay. In a 2-yr study, we determined whether exposure to winter wind elicits a stress response in pregnant cows (5–7 yr old) grazing a foothill rangeland. We measured several indicators of stress-response of cows which had (windbreak) or did not have (non-windbreak) access to windbreaks. In Winter 1 (1966–1997), backfat thickness increased on windbreak and non-wind-break cattle. Body condition scores of both groups were lower at the end of the trial. In Winter 2 (1997–1998), backfat thickness decreased for windbreak and non-windbreak cattle. Body condition scores did not change. Weight changes were minor both winters. Changes in backfat thickness indicated that cattle in Winter 1 were catabolizing more lean muscle tissue, whereas cattle in Winter 2 were catabolizing more fat. Cattle entered Winter 1 in lower body condition and mass than in Winter 2. Cattle with access to windbreaks tended to have a stronger cell-mediated immune response than non-windbreak cattle. Birth and weaning weights of calves, and calving interval were similar for windbreak and non-windbreak cattle. Neither winter elicited a strong stress response from cattle grazing this foothill rangeland, with or without access to windbreaks. Key words: Beef cattle, backfat, body condition, weight loss, immune response

scholarly journals Genetic association between mature weight and early growth and heifer pregnancy traits in Nellore cattle

2018 ◽  
Vol 211 ◽  
pp. 61-65 ◽  
Author(s):  
B.C. Abreu Silva ◽  
J.P. Eler ◽  
M.L. Santana ◽  
E.C. Mattos ◽  
I.R. Menezes ◽  
...  
Keyword(s):  
Genetic Association ◽  
Early Growth ◽  
Nellore Cattle ◽  
Mature Weight

Is cestode infection intensity associated with decreased body condition in the Eurasian woodcock Scolopax rusticola?

2017 ◽  
Vol 92 (1) ◽  
pp. 42-48
Author(s):  
C. Sánchez-García ◽  
E. Harris ◽  
A.C. Deacon ◽  
R. Bray ◽  
A.N. Hoodless
Keyword(s):  
Body Condition ◽  
Infection Intensity ◽  
Major Effect ◽  
Intermediate Hosts ◽  
Fat Pad ◽  
East Anglia ◽  
Scolopax Rusticola ◽  
High Prevalence ◽  
Wintering Areas ◽  
Dietary Component

AbstractThe Eurasian woodcock Scolopax rusticola is a widespread woodland specialist and a widely harvested quarry species throughout its European wintering areas, including Britain. Woodcock are prone to cestodiasis, but prevalence levels and possible effects on body condition remain under-studied. We studied the prevalence, abundance and intensity of cestodiasis in 161 woodcock harvested in four British regions in December and January during two consecutive winters (2013/14 and 2014/15). Cestodiasis prevalence was 90%, and there was no difference in prevalence between birds harvested in Cornwall, Wessex, East Anglia and Scotland. High prevalence levels were explained by the fact that earthworms (Lumbricidae) are intermediate hosts for some cestode species and also the most important dietary component of woodcock. The distribution of cestodiasis in woodcock was aggregated, such that when using the total length of cestodes per sample to measure abundance, 65% of the birds had less than 80 cm. Cestodiasis abundance varied between sexes across regions but the intensity was not affected by region, sex, age or their interactions. The intensity of cestodiasis was positively correlated with fresh weight and pectoral mass, while no significant correlation was found with the abdominal fat pad. Our results suggest that, despite high prevalence levels and intensity of cestodiasis in woodcock, host body condition is not significantly affected and hence it is unlikely that cestodiasis has a major effect on woodcock population dynamics.

scholarly journals ‘Thunder Measure Vet Device’: een praktische en objectieve methode om de lichaamsconditie van melkvee te schatten

2016 ◽  
Vol 85 (3) ◽  
pp. 141-149
Author(s):  
T. Dewaele ◽  
M. Van Eetvelde ◽  
G. Vertenten ◽  
G. Opsomer
Keyword(s):  
Body Condition ◽  
Body Condition Score ◽  
Backfat Thickness ◽  
Condition Score

Het op regelmatige tijdstippen bepalen van de lichaamsconditie van koeien is in de moderne melkveehouderij een belangrijk instrument om het nutritionele management van de dieren te optimaliseren. De ‘Thunder Measure (TM) Vet Device’ werd door Ingenera SA, Zwitserland ontwikkeld om op een objectieve en eenvoudige manier de conditie of “body condition score” (BCS) bij melkkoeien te bepalen. Aan de hand van een smartphone-applicatie gekoppeld aan een lasertoestel wordt een analyse gemaakt van drie foto’s van de dorsale zijde van het dier, bijvoorbeeld in de voedergang. In dit onderzoek werden de correlatie en de herhaalbaarheid van de TMVet Device berekend in vergelijking tot de conventionele BCS-bepaling en de ultrasonografisch bepaalde “backfat thickness” (BFT). De conventionele BCS werd gemeten door een dierenarts ervaren in het bepalen van de conditie van melkkoeien en drie minder ervaren studenten diergeneeskunde. Bij dezelfde koeien werd de lichaamsconditie ook bepaald aan de hand van de BFT. De resultaten bekomen via het gebruik van de TM-Vet Device waren slechts matig gecorreleerd met de BFT (r=0,38; P<0,001), maar vertoonden een hoge correlatie met de BCS bepaald door de ervaren dierenarts (r=0,82; P<0,001). Bovendien was er een goede overeenkomst tussen de resultaten bekomen met behulp van TM-Vet Device en deze bekomen door de ervaren dierenarts. Er werd een grote variatie gezien in de BCS bepaald door de studenten, waardoor ook de correlatie met de TM-Vet Device sterk varieerde van r=0,23 (P<0,05) tot r=0,74 (P<0,001). De herhaalbaarheid van de TM-Vet Device-methode was met 91% zeer hoog. Enkel door de dierenarts ervaren in het scoren van de BCS (93%) en met de bepaling van de BFT (96%) werd een hogere herhaalbaarheid bereikt. Bij magerdere dieren werd een overschatting gezien van de BCS gemeten met behulp van de TM-Vet Device in vergelijking met de BCS waargenomen door de ervaren dierenarts, maar deze nam af naarmate de door de dierenarts toegekende conditie toenam. Het eenvoudig gebruik en de betrouwbaarheid van de resultaten laten toe te stellen dat de TM-Vet Device een plaats kan krijgen in het management van een hoogproductief melkveebedrijf.

The effect of body condition of gilts at first mating on long-term sow production

1996 ◽  
Vol 1996 ◽  
pp. 144-144 ◽  
Author(s):  
C M Challinor ◽  
G Dams ◽  
B Edwards ◽  
W H Close
Keyword(s):  
Body Condition ◽  
The Body ◽  
Backfat Thickness ◽  
Reproductive Efficiency ◽  
Commercial Development ◽  
Commercial Trial ◽  
Development Unit ◽  
Long Term Performance ◽  
Term Performance

The body condition of the gilt at first mating may have a significant effect upon its lifetime reproductive performance. (Gueblez et al, 1985). Gaughan et al (1995), have recently demonstrated that gilts with low backfat thickness (9- 13mm) had fewer litters and weaned fewer piglets than gilts with medium (14-16mm) and high (>17mm) levels. The extent to which variations in both body weight and backfat thickness of gilts at first mating influence long-term reproductive efficiency has been further investigated in a commercial trial at the JSR Commercial Development Unit, Catwick. The overall objective of the trial was to assess the long-term performance of modern pig genotypes under commercial conditions.

scholarly journals The fat cover in gilts in relation to body condition and reproduction

2011 ◽  
Vol 59 (1) ◽  
pp. 163-172
Author(s):  
Václav Matoušek ◽  
N. Kernerová ◽  
L. Máchal ◽  
J. Václavovský
Keyword(s):  
Body Condition ◽  
Body Condition Score ◽  
Average Daily Gain ◽  
Correlation Coefficients ◽  
Reproductive Traits ◽  
The Body ◽  
Backfat Thickness ◽  
Large White ◽  
Meat Content

A study was conducted in a set of hybrid gilts of F1 generation of Czech Large White x Czech Landrace breeds coming from a multiplication herd. The objective of the study was to test a possibility of using the measured traits, i.e. backfat thickness (BT) and lean meat content (LM), for objective determination of changes in the body condition score of gilts during rearing and in relation to their subsequent fertility in parities 1. At the ultrasonic measurement in the multiplication herd the purchased gilts showed the average daily gain (ADG) from birth 612.5 g, average backfat thickness (ABT) 8.34 mm, loin muscle depth (LMD) 48.83 mm and LM 62.26%. At the first determination of own performance traits in a production herd the values of ABT, LMD and LM were 13.26 mm, D 59.29 mm and 58.83%, respectively. In a subsequent measurement (at the onset of standing heat) the respective values of ABT, LMD and LM were 15.15 mm, 62.31 mm and 57.42%. Correlation coefficients for the measured traits of own performance in relation to reproductive traits in parities 1 were mostly low, statistically insignificant.

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