Resuscitation of hypothermic lambs

Eales, FA; Small, J; Gilmour, JS

doi:10.1136/vr.110.6.121

Cited by 22 publications

(13 citation statements)

References 0 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Careful observation and foster mothering of weak and abandoned lambs at birth, including artificial warming during cold periods of the year to prevent SME and reduce neonatal mortality (Eales et al, 1982). Young lambs should not be allowed to graze hard, fibrous dry grass, so as to avoid the formation of bezoars in the abomasum.…”

Section: Discussionmentioning

confidence: 99%

Causes of lamb morbidity and mortality in the Ethiopian highlands

Bekele¹,

Kasali²,

Woldeab³

1992

Vet Res Commun

View full text Add to dashboard Cite

A study was conducted to investigate causes of lamb morbidity and mortality on farms and on-station at Debre Berhan during 1989 and 1990. It showed pneumonia (bacterial and/or verminous), starvation-mismothering exposure (SME) complex, gastrointestinal parasites, enteritis, abomasal impaction and physical injuries to be important health constraints on productivity. Neonatal mortalities were 51.5% and 46.3% on farms and on-station respectively and occurred owing to management problems such as SME, abomasal impaction and physical injuries. On the farms the lamb birth weight was 2.56 +/- 0.25 kg and was significantly (p < 0.05) affected by the dam's age, lambing weight, litter size, sex of lamb and year of lambing, but not by the season of lambing. Birth weight significantly (p < 0.05) influenced lamb mortality. Lambs with a low birth weight tended to die from SME. Morbidities and mortalities due to infectious causes increased in older lambs, suggesting that infections were acquired with age when resistance was lowered owing to inadequate nutrition and poor management. Heavy loss of lambs could be overcome by such health management interventions as foster mothering, warming lambs during the cold season and vaccination with polyvalent vaccines against pasteurellosis, clostridial infection and Dictyocaulus filaria.

show abstract

Section: Discussionmentioning

confidence: 99%

Causes of lamb morbidity and mortality in the Ethiopian highlands

Bekele¹,

Kasali²,

Woldeab³

1992

Vet Res Commun

View full text Add to dashboard Cite

show abstract

“…Once rewarmed the lambs quickly regained normal activity and exhibited a strong suckling drive. In a rewarming study reported by Eales et al (1982b), 16 of 89 hypothermic lambs died during resuscitation in a 40'C air environment. The lambs used in the studies of Eales et al (1982a,b) were found in the held in a hypothermic state of unknown durations prior to the attempted resuscitations and therefore the results are not directly comparable with the present study.…”

Section: Induction Of Hypothermia and Test Proceduresmentioning

confidence: 99%

“…Trois m6thodes ont servi au r6chauffement des sujets: (A) immersion dans de I'eau chaude (38'C); (B) (Martin et al 1975l. Slee 1977Haresign etal.1977;Eales et al 1982b Bennen 1982) and has been reported to decline in newborn lambs (Alexander 1962) (Robinson et al 1986). However, the extent of hypothermia in these lambs was substantially less than the, on average, 30'C identified by shepherds with field animals (Eales et al 1982a).…”

mentioning

confidence: 99%

Recovery of Neonatal Lambs From Hypothermia With Thermal Assistance

Robinson¹,

Young²

1988

Can. J. Anim. Sci.

View full text Add to dashboard Cite

. 1988. Recovery of neonatal lambs from hypothermia with thermal assistance. Can. J. Anim. Metabolic heat production and body core temperature were measured in 12 newborn lambs (4.7 +0.2 kg) prior to and during the induction of acute hypothermia (Tc:30"C), as well as during recovery to euthermia. Hypothermia was induced by immersion in l4-28"C water. Rewarming was achieved by one of three procedures: (A) immersion of the lambs in warm water (38'C); (B)

show abstract

“…First, the availability of carbohydrate and not lipid is the ultimate determinant of the period during which a new-born's well being will not be threatened. Even and the resulting hypoglycaemia lead to depressed heat production which causes hypothermia and to compromised cerebral function, indicated by coma, convulsions and other symptoms (Goodwin, 1957;McCance & Widdowson, 1959;Alexander, 1962c;Cormblath & Schwartz, 1966;Shelley & Neligan, 1966;Eales, Small & Armstrong, 1980;Eales, Gilmour, Barlow & Small, 1982a;Eales, Small & Gilmour, 1982c). Hypothermia usually precedes cerebral compromise and is often the cause ofdeath in cold conditions, whereas cerebral compromise usually causes death in thermoneutral conditions.…”

Section: Utilization Of Body Energy Reservesmentioning

confidence: 99%

A Comparison of Energy Metabolism in the New‐born Infant, Piglet and Lamb

1986

View full text Add to dashboard Cite

Characteristics of energy metabolism in the new‐born infant, piglet and lamb have been compared quantitatively in order to assess how the constraints imposed by the availabilities of energy substrates in body reserves and colostrum differ between species and affect the new‐born's well being during the first day after birth. Three air temperature ranges, described as thermoneutral (32‐38 °C), moderate (18‐26 °C) and cold (0‐10 °C) and representing the usual birth environments of infants, piglets and lambs, respectively, have been considered. The analysis revealed the following noteworthy points. Carbohydrate and lipid are the major energy substrates for heat production because protein catabolism is minimal during the first day after birth in all three species. The availability of carbohydrate determines how long the new‐born can avoid hypoglycaemia, which threatens well being because it leads to hypothermia or compromised cerebral function, but lipid availability can affect the periods for which the carbohydrate can last. Thus, in unfed piglets and lambs the available reserves of liver and skeletal muscle glycogen (g/kg body weight) are similar in normal (n.) and growth retarded (g.r.) individuals, but glycogen exhaustion occurs earlier in g.r. new‐borns because a reduced lipid availability in them increases their dependence on carbohydrate. In contrast, lipid energy is plentiful in g.r., preterm (p.) and n. infants, so that the faster depletion of glycogen in g.r./p. than in n. individuals is primarily due to a restricted prenatal glycogen deposition in the former. The usual colostrum intakes of n. infants are very low during the first day, but their body reserves can supply the required energy, the major source of carbohydrate being liver glycogen. However, g.r./p. infants require supplementary feeding, the choice of feed being determined by factors such as the intakes the infants can achieve, the carbohydrate content of the feed and the need to ensure a balanced supply of minerals, electrolytes and other substances. In their usual birth environments piglets and lambs, whether growth retarded or not, require colostrum to avoid hypothermia during the first day. The colostrum of both species is rich in lipid, which corrects any deficit in the new‐born and thus extends the availability of glycogen, but at the usual colostrum intakes the amounts of lactose can provide sufficient carbohydrate energy for only about half a day. Piglets and lambs, even when fed fully, are therefore obliged to call on their body glycogen reserves in order to make up the difference. After the first day in all three species milk must rapidly become the only source of carbohydrate, lipid and protein. It is suggested that despite differences between them, the piglet or lamb could prove to be useful animal models of the infant's metabolism, but only if the experimental conditions are chosen carefully.

show abstract

Resuscitation of hypothermic lambs

Cited by 22 publications

References 0 publications

Causes of lamb morbidity and mortality in the Ethiopian highlands

Causes of lamb morbidity and mortality in the Ethiopian highlands

Recovery of Neonatal Lambs From Hypothermia With Thermal Assistance

A Comparison of Energy Metabolism in the New‐born Infant, Piglet and Lamb

Contact Info

Product

Resources

About