scholarly journals Correction: Schwarzkopf et al. Weaning Holstein Calves at 17 Weeks of Age Enables Smooth Transition from Liquid to Solid Feed. Animals 2019, 9, 1132

Animals ◽  
2021 ◽  
Vol 11 (11) ◽  
pp. 3044
Author(s):  
Sarah Schwarzkopf ◽  
Asako Kinoshita ◽  
Jeannette Kluess ◽  
Susanne Kersten ◽  
Ulrich Meyer ◽  
...  
Keyword(s):  
Smooth Transition ◽  
Holstein Calves

The authors wish to make the following correction to their paper [...]

scholarly journals Weaning Holstein Calves at 17 Weeks of Age Enables Smooth Transition from Liquid to Solid Feed

Animals ◽  
2019 ◽  
Vol 9 (12) ◽  
pp. 1132
Author(s):  
Sarah Schwarzkopf ◽  
Asako Kinoshita ◽  
Jeannette Kluess ◽  
Susanne Kersten ◽  
Ulrich Meyer ◽  
...  
Keyword(s):  
Metabolic Stress ◽  
Live Weight ◽  
The Other ◽  
Smooth Transition ◽  
Blood Metabolites ◽  
Positive Effects ◽  
Weaning Age ◽  
Holstein Calves ◽  
Positive Effect ◽  
Over Time

Development of calves depends on prenatal and postnatal conditions. Primiparous cows were still maturing during pregnancy, which can lead to negative intrauterine conditions and affect the calf’s metabolism. It is hypothesized that weaning calves at higher maturity has positive effects due to reduced metabolic stress. We aimed to evaluate effects of mothers’ parity and calves’ weaning age on growth performance and blood metabolites. Fifty-nine female Holstein calves (38.8 ± 5.3 kg birth weight, about 8 days old) were used in a 2 × 2 factorial experiment with factors weaning age (7 vs. 17 weeks) and parity of mother (primiparous vs. multiparous cows). Calves were randomly assigned one of these four groups. Live weight, live weight gain and morphometry increased over time and were greater in calves weaned later. Metabolic indicators except total protein were interactively affected by time and weaning age. Leptin remained low in early-weaned calves born to primiparous cows, while it increased in the other groups. The results suggest that weaning more mature calves has a positive effect on body growth, and calves born to primiparous cows particularly benefit from this weaning regimen. It also enables a smooth transition from liquid to solid feed, which might reduce the associated stress of weaning.

Holding Power of Orthopaedic Screws in Metacarpal and Metatarsal Bones of Young Calves

1992 ◽  
Vol 05 (03) ◽  
pp. 100-103 ◽  
Author(s):  
G. Jean ◽  
J. K. Roush ◽  
R. M. DeBowes ◽  
E. M. Gaughan ◽  
J. Kirpensteijn
Keyword(s):  
Shear Strength ◽  
Tensile Load ◽  
Young Female ◽  
Limiting Factor ◽  
Holding Power ◽  
Metatarsal Bones ◽  
Bone Width ◽  
Load To Failure ◽  
Holstein Calves

SummaryThe holding power and holding power per mm bone width of 4.5 mm and 5.5 mm cortical and 6.5 mm cancellous orthopaedic screws were obtained by tensile load-to-failure studies in excised metacarpal and metatarsal bones of young female Holstein calves. Holding power and holding power per mm bone width of 6.5 mm orthopaedic screws were significantly greater than those of 4.5 and 5.5 mm orthopaedic screws in the diaphysis and metaphysis. Significant differences were not detected between holding power and holding power per mm bone width of 4.5 and 5.5 mm orthopaedic screws. The holding power was not different between metacarpi and metatarsi. The limiting factor in all tests of holding power was the shear strength of the bone. We found that 6.5 mm orthopaedic screws have the greatest holding power in the metacarpal and metatarsal bones of young calves.This study compares the holding power of 4.5 mm and 5.5 mm cortical and 6.5 mm cancellous orthopaedic screws in excised metacarpal and metatarsal bones from young female Holstein calves. We found that 6.5 mm orthopaedic screws have the greatest holding power.

Design and Testing of an Experimental IPv4-to-IPv6 Transition Network

2006 ◽  
Vol 3 (1) ◽  
pp. 27
Author(s):  
Mustaffa Samad
Keyword(s):  
Transition Period ◽  
Internet Protocol ◽  
Smooth Transition ◽  
Internet Users ◽  
Ipv6 Transition ◽  
Information And Communication ◽  
Ipv6 Networks ◽  
And Migration ◽  
Set Up ◽  
Design And Testing

The Internet has been an integral part of the Information and Communication Technology (ICT) community in recent years. New internet users have been growing steadily over the years. This has lead to the depletion of new Internet Protocol (IP) addresses worldwide. To overcome this predicament, the new Internet Protocol version 6 (IPv6) had been introduced. The existing Internet Protocol version 4 (IPv4) is expected to be eventually replaced by this IPv6. The changeover from IPv4 to IPv6 is expected to be implemented progressively. During this transition period, these two protocols are expected to coexist for a number of years. IPv4-to-IPv6 transition tools have been designed to facilitate a smooth transition from IPv4 to IPv6. The two most basic IPv4-to-IPv6 transition tools available are the hybrid stack mechanism and tunneling. Tunneling is the encapsulation of IPv6 traffic within IPv4 packets so they can be sent over an IPv4 infrastructure. This project was initiated to set up an experimental IPv6 testbed, in order to study the performance as well as transition and migration issues of IPv6 networks under controlled conditions. This paper looks at how tunneling can be performed over existing internetwork infrastructure at Fakulti Kejuruteraan Elektrik (FKE), UiTM.

Topping-off technique for stabilization of lumbar degenerative instabilities in 322 patients

2020 ◽  
Vol 32 (3) ◽  
pp. 366-372
Author(s):  
Sandro M. Krieg ◽  
Nele Balser ◽  
Haiko Pape ◽  
Nico Sollmann ◽  
Lucia Albers ◽  
...  
Keyword(s):  
Patient Satisfaction ◽  
Interbody Fusion ◽  
Smooth Transition ◽  
Lumbar Pain ◽  
Adjacent Segment ◽  
Lumbar Interbody Fusion ◽  
Rod System ◽  
Reoperation Rates ◽  
Topping Off

OBJECTIVESemi-rigid instrumentation (SRI) was introduced to take advantage of the concept of load sharing in surgery for spinal stabilization. The authors investigated a topping-off technique in which interbody fusion is not performed in the uppermost motion segment, thus creating a smooth transition from stabilized to free motion segments. SRI using the topping-off technique also reduces the motion of the adjacent segments, which may reduce the risk of adjacent segment disease (ASD), a frequently observed sequela of instrumentation and fusion, but this technique may also increase the possibility of screw loosening (SL). In the present study the authors aimed to systematically evaluate reoperation rates, clinical outcomes, and potential risk factors and incidences of ASD and SL for this novel approach.METHODSThe authors collected data for the first 322 patients enrolled at their institution from 2009 to 2015 who underwent surgery performed using the topping-off technique. Reoperation rates, patient satisfaction, and other outcome measures were evaluated. All patients underwent pedicle screw–based semi-rigid stabilization of the lumbar spine with a polyetheretherketone (PEEK) rod system.RESULTSImplantation of PEEK rods during revision surgery was performed in 59.9% of patients. A median of 3 motion segments (range 1–5 segments) were included and a median of 2 motion segments (range 0–4 segments) were fused. A total of 89.4% of patients underwent fusion, 73.3% by transforaminal lumbar interbody fusion (TLIF), 18.4% by anterior lumbar interbody fusion (ALIF), 3.1% by extreme lateral interbody fusion (XLIF), 0.3% by oblique lumbar interbody fusion (OLIF), and 4.9% by combined approaches in the same surgery. Combined radicular and lumbar pain according to a visual analog scale was reduced from 7.9 ± 1.0 to 4.0 ± 3.1, with 56.2% of patients indicating benefit from surgery. After maximum follow-up (4.3 ± 1.8 years), the reoperation rate was 16.4%.CONCLUSIONSThe PEEK rod concept including the topping-off principle seems safe, with at least average patient satisfaction in this patient group. Considering the low rate of first-tier surgeries, the presented results seem at least comparable to those of most other series. Follow-up studies are needed to determine long-term outcomes, particularly with respect to ASD, which might be reduced by the presented approach.

Формирование иммунного статуса у новорожденных телят молочных и комбинированных пород

2019 ◽  
pp. 32-37
Author(s):  
L.N. BAKAEVA ◽  
A.S. KARAMAEVA ◽  
S.V. KARAMAEV
Keyword(s):  
Blood Serum ◽  
Holstein Cows ◽  
Morbidity Rate ◽  
Immune Development ◽  
Black And White ◽  
Alveolar Tissue ◽  
Holstein Calves ◽  
Newborn Calves ◽  
Middle Volga ◽  
Epithelium Cells

Работа  посвящена изучению особенностей формирования иммунитета у новорожденных телят. Объектом исследований служили коровы бестужевской, черно-пестрой, голштинской, айрширской пород и их потомство, разводимые в природно-климатической зоне Среднего Поволжья и Южного Урала. Установлено, что за последний месяц перед отелом в сыворотке крови коров происходит снижение содержания иммуноглобулинов, у бестужевской породы на 19,3%, черно-пестрой — на 15,8%, голштинской — на 13,4%, айрширской — на 15,0%. Это обусловлено тем, что иммуноглобулины интенсивно перемещаются в клетки секреторного эпителия альвеолярной ткани вымени. В молозиве первого удоя содержится от 57,86 г/л (голштинская порода) до 106,78 г/л (бестужевская порода) иммуноглобулинов. В молозиве второго удоя содержание иммуноглобулинов снижается у бестужевской породы на 18,9%, черно-пестрой — на 25,1%, голштинской — на 29,3%, айрширской — на 21,7%, а при четвертом доении, соответственно, на 45,4; 51,6; 52,4; 49,2%. Через 6 ч после первого выпаивания молозивом, содержание иммуноглобулинов в сыворотке крови телят всех пород, за исключением голштинской, было выше 10 мг/мл, что считается физиологической нормой. Исследования показали, что в каждой породе есть телята, не воспринимающие иммуноглобулины из молозива матери, доля которых составляет, соответственно 20; 16; 30; 10%. Наиболее опасными для здоровья теленка являются первые 5 дней жизни. В этот период в бестужевской породе заболело 6% телят, черно-пестрой — 24, голштинской — 42, айрширской — 14%. Всего за первый месяц жизни заболеваемость телят в группах составила, соответственно, 16; 48; 76; 26%.The article presents the study of peculiarities of immune development in newborn calves. The objects of interest were Bestuzhev, Black-and-White, Holstein and Ayrshire cows and their progeny raised in the environmental and climatic zone of Middle Volga and Southern Ural. The study has shown that during the last month prior to calving there was a decrease of immunoglobulin content in the cows’ blood serum: in Bestuzhev cows by 19.3%, in Black-and-White cows by 15.8%, in Holstein cows by 13.4% and in Ayrshire cows by 15.0%. This is due to the fact that immunoglobulins massively migrate to secretory epithelium cells of the udder alveolar tissue. Immunoglobulin concentration in the first milking colostrum was from 57.86 g/l (Holstein cows) up to 106.78 g/l (Bestuzhev cows). In the second milking colostrum the content of immunoglobulins was decreased by 18.9% in Bestuzhev cows, by 25.1% in Black-and-White cows, by 29.3% in Holstein cows and by 21.7% in Ayrshire cows, in the forth milking colostrum the decrease was respectively by 45.4; 51.6; 52.4 and 49.2%. 6 hours after the first colostrum feeding immunoglobulin content in blood serum of calves of all breeds except for Holstein one exceeded 10 mg/ml, what was within the physiological norm. The study has shown that there were calves in every breed who did not accept immunoglobulins from the mother’s colostrum, their percentage was respectively 20; 16; 30 and 10%. The first five days of life were the most dangerous for the health of calves. During the period 6% Bestuzhev calves, 24% Black-and-White calves, 42 Holstein calves and 14% Ayrshire calves fell ill. During the fist month of life the morbidity rate of calves was respectively 16; 48; 76 and 26%.

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