scholarly journals The high-fertility cycle: How timely pregnancies in one lactation may lead to less body condition loss, fewer health issues, greater fertility, and reduced early pregnancy losses in the next lactation

2019 ◽  
Vol 102 (6) ◽  
pp. 5577-5587 ◽  
Author(s):  
E.L. Middleton ◽  
T. Minela ◽  
J.R. Pursley
Keyword(s):  
Body Condition ◽  
Early Pregnancy ◽  
High Fertility ◽  
Health Issues ◽  
Fertility Cycle

A note on reproductive performance and plasma progesterone level during early pregnancy of Scottish Blackface and Cheviot ewes in relation to body condition and level of nutrition prior to mating

1983 ◽  
Vol 37 (3) ◽  
pp. 455-458 ◽  
Author(s):  
S. M. Rhind ◽  
R. G. Gunn ◽  
J. M. Doney
Keyword(s):  
Treatment Group ◽  
Body Condition ◽  
Early Pregnancy ◽  
Reproductive Performance ◽  
Weight Maintenance ◽  
Live Weight ◽  
Corpora Lutea ◽  
Plasma Progesterone ◽  
Condition Score ◽  
Maintenance Ration

ABSTRACTSeventy-nine Scottish Blackface and 79 North × South Country Cheviot ewes were fed to increase their mean condition score by 0·5 over periods of either 4 (M/H group) or 8 (I group) weeks prior to mating. Thereafter, they were fed a live-weight maintenance ration until they were slaughtered at 50 to 65 days after mating. Reproductive tracts were recovered, corpora lutea counted and embryos counted and examined. Plasma progesterone levels were monitored at selected times after mating. The proportion of ewes in each treatment group that were pregnant at the time of slaughter was similar (0·75 to 0·83) but there was evidence of differences in the pattern of reproductive failure with treatment. The proportion of non-pregnant ewes which had apparently been pregnant initially was 0·55 in the M/H group compared with only 0·27 in the I group. Circulating progesterone levels were not affected by premating nutritional treatments but differed with breed.

scholarly journals Body Condition Scoring and Obesity in Captive African Side-Neck Turtles (Pelomedusidae)

2014 ◽  
Vol 14 (3) ◽  
pp. 573-584 ◽  
Author(s):  
Mateusz Rawski ◽  
Damian Józefiak
Keyword(s):  
Body Weight ◽  
Body Condition ◽  
Health Issues ◽  
Scoring Method ◽  
Fat Reserves ◽  
Good Body Condition ◽  
Natural Tendency ◽  
In Captivity ◽  
Simple Body ◽  
Body Condition Scoring

AbstractAfrican side-neck turtles (Pelomedusa subrufa and Pelusios castaneus) are popular in captivity, in many parts of the world. their natural tendency to accumulate body fat reserves may be a reason for many health issues. for keepers and veterinarians body condition scoring is an important tool in the process of management and care of the animals. therefore the main aim of the study was to formulate a single mathematic formula for allometric equations and simple body condition scoring method which can be used in juvenile, sub-adult and adult specimens of Pelomedusa subrufa and Pelusios castaneus. twelve healthy turtles (7 Pelomedusa subrufa and 5 Pelusios castaneus) – 4 males, 4 females and 4 immature were measured and weighed for 52 weeks (624 measurements). the obtained data were used to formulate equations of estimated body weight and compared to results of measurements of 73 turtles from private keepers. additionally, visual assessments of their body condition were made. The results showed that body weight is significantly (P=0.001) correlated with straight carapace length of turtles. in the assessed population of 73 captive Pelomedusidae kept as pets, no emaciated turtles were recorded, and 10% of them were underweight. In the case of 68% of the animals, body condition was identified as optimal, and in 15% and 7% as overweight and obese, respectively. The population of african side-neck turtles seems to be in quite good body condition. However, a high percentage of overweight and obese animals suggests the need for continuous monitoring of pet turtles for body condition.

Effects of level of feeding after mating on ‘fat’ and ‘thin’ sows

1986 ◽  
Vol 1986 ◽  
pp. 118-118 ◽  
Author(s):  
N. Walker
Keyword(s):  
Litter Size ◽  
Body Fat ◽  
Body Condition ◽  
Early Pregnancy ◽  
Feed Intake ◽  
Feed Rate ◽  
High Intake ◽  
Large White ◽  
Fat Reserves ◽  
High Feed

Pregnant sows in poor body condition require a high feed intake to restore body fat reserves. However, a high intake in the period following conception may increase embryo losses. The first objective of this experiment was to determine whether a high feed allowance after conception has any effect on litter size compared with a normal allowance. The second objective was to investigate the effects of body condition at conception and feed rate in early pregnancy on the components of maternal gain.Multiparous cross-bred sows of Large White and Landrace lineage were classified subjectively at farrowing according to body condition as either fat (F) or thin (T). A single diet containing 12.5 MJ DE/kg and 150 g CP/kg was fed throughout the experiment. The fat sows were fed more generously than the thin sows during the 28 day lactation with mean intakes of 5.3 and 4.8 kg/day. This was to maintain the differential in body condition between the two groups. After weaning all sows were fed 3 kg per day until mating. Within the fat and thin groups sows were allocated at random to either 4 or 2 kg of feed per day for 30 days after mating.

Effects of plane of nutrition during the first month of pregnancy on conception rate, foetal development and lamb output of mature and adolescent ewes

2006 ◽  
Vol 82 (6) ◽  
pp. 947-954 ◽  
Author(s):  
R. W. Annett ◽  
A. F. Carson
Keyword(s):  
Body Condition ◽  
Adolescent Mothers ◽  
Early Pregnancy ◽  
Body Condition Score ◽  
Live Weight ◽  
Metabolizable Energy ◽  
Conception Rate ◽  
Foetal Development ◽  
Crown Rump Length ◽  
Condition Score

AbstractEmbryo transfer studies have demonstrated that high plane feeding in early pregnancy is detrimental to the successful establishment of pregnancy in adolescent but not mature ewes. To further examine this relationship with ewes that conceive naturally and to investigate its effects on foetal development, 102 Greyface and Texel×Greyface ewes (body condition score (BCS) 3·8) and 114 Texel×Greyface adolescent ewes (BCS 3·3) were allocated to one of three treatments following a synchronized mating. From day 1 to 31 of pregnancy, animals were offered grass nuts (10·2 MJ metabolizable energy (ME) per kg dry matter (DM); 163 g crude protein per kg DM) at one of three levels to supply approximately 2·0 (H); 1·0 (M) and 0·6 (L) of their predicted ME requirements for maintenance. Increasing the post-mating plane of nutrition resulted in significant increases in ewe live weight (P<0·001) and BCS (P<0·001) during the treatment period. When diets were standardized for all animals during mid pregnancy (days 31 to 105), L ewes gained more live weight (P<0·05) and BCS (P<0·001) than H ewes. Early pregnancy nutrition had no effect on the conception rate of mature ewes; however adolescent ewes on the H and M treatments had lower conception rates (P<0·05) than those offered the L diet (0·59, 0·61 and 0·82 respectively). As a result, L adolescent ewes tended to have a higher mean total lamb birth weight per ewe mated (P=0·09) although lamb output at weaning was not influenced by plane of nutrition. Lambs born from adolescent mothers had lower lamb birth weights (P<0·001) and a shorter mean head length, crown-rump length and thoracic girth (P<0·001). Foetuses from H ewes had longer hind legs than those from L ewes on day 83 of gestation (P<0·05) and at term (P<0·05). The results of this study suggest that allowing adolescent but not mature ewes to lose live weight and body condition can increase the proportion of productive ewes following a natural service.

An on-farm study of late pregnancy and lactation performance of ewe lambs and their progeny on lucerne or pasture

2015 ◽  
Vol 77 ◽  
pp. 269-274 ◽  
Author(s):  
D.R. Stevens ◽  
L. Wright ◽  
P. Mcgill
Keyword(s):  
Body Condition ◽  
Body Condition Score ◽  
Animal Health ◽  
Late Pregnancy ◽  
Health Issues ◽  
Lactation Performance ◽  
Ewe Lambs ◽  
Condition Score ◽  
Pregnancy And Lactation ◽  
On Farm

An on-farm demonstration compared the use of perennial ryegrass based pasture or lucerne as the forage source for in-lamb ewe lambs from 2 weeks prior to lambing until weaning in the Te Anau basin. This demonstration, over 2 years, used 632 and 506 in-lamb ewe lambs in 2013 and 2014 respectively with approximately 50% being single-bearing and 50% twin-bearing in both years. Pasture and lucerne were set stocked until docking at approximately 33 days of age and then rotationally grazed thereafter until weaning at approximately 110 days of age. Ewe liveweights and body condition scores tended to be higher when grazed on lucerne during spring and all ewes were at or near two-tooth mating weights at weaning (67 kg). Lamb liveweights at 110 days of age were similar from the pasture and lucerne (33.4 kg). Lamb losses were greater on lucerne (37%) than pasture (28%) in both years, and led to a significantly lower lambing percentage on lucerne. Stocking rate chosen based on previous pasture growth records and potential lucerne yield was greater on lucerne (11.7 ewes/ha) than that on pasture (9.4 ewes/ha). The combined liveweight gain of ewes and their lambs per hectare was significantly greater from lucerne (492 kg/ha) than pasture (398 kg/ ha). Scanning data from the second mating was 201% and 189% in ewes that had grazed on lucerne or pasture during the previous lactation respectively, while ewes weighed 67.7 and 65.1 kg at mating respectively. Lucerne can be used as a forage option to increase the performance of bred ewe lambs but the grazing of young lush growth should be avoided to reduce potential animal health issues. Keywords: body condition score, ewe lambs, lamb liveweight gain, lamb survival, reproduction

Comparative Body Condition and Haemato-biochemical Profile of Tellicherry Does during Pregnancy, Lactation and Dry Period

2021 ◽  
Author(s):  
T. Muthuramalingam ◽  
S. Meenakshi Sundaram ◽  
P. Tensingh Gnanaraj ◽  
T. Sivakumar ◽  
S. Vairamuthu ◽  
...  
Keyword(s):  
Body Condition ◽  
Early Pregnancy ◽  
Total Protein ◽  
Blood Cells ◽  
Biochemical Parameters ◽  
White Blood Cells ◽  
Late Pregnancy ◽  
Physiological Status ◽  
Early Lactation ◽  
Dry Period

Background: The aim of the study is to provide a complete picture of dynamics of body condition and selected hemato-biochemical parameters of Telicherry does during pregnancy, lactation and dry period.Methods: Blood samples were collected from 40 Tellicherry does ageing around 2-2½ years fortnightly during early pregnancy (1-3 months), late pregnancy (3-5 months), early lactation, mid lactation, late lactation and dry period. Haematological parameters such as haemoglobin (Hb), packed cell volume (PCV), red blood cells count (RBC) and white blood cells count (WBC) were analyzed. Biochemical parameters such as lactate dehydrogenase (LDH), blood urea nitrogen (BUN), total protein (TP), glucose, triglyceride, aspartate transaminase (AST), calcium (Ca), phosphorus (P), sodium (Na) and potassium (K) were estimated.Result: Significant reduction in body weight and condition was observed during early lactation followed by gradual increase during mid and late lactation. The levels of Hb, PCV, RBC (P less than 0.01) found to be elevated throughout pregnancy while WBC, BUN and total protein values were higher during late pregnancy and late lactation. However, LDH levels (P less than 0.01) were higher during both pregnancy and lactation. The serum levels of glucose and triglyceride were lowest during early lactation and highest during early pregnancy and dry period. Reduction in Ca and P (P less than 0.01) levels were observed throughout lactation. AST, Na and K levels remained unaffected during all the physiological status. 

Reproductive and productive response to suckling restriction and dietary flushing in primiparous grazing beef cows

2013 ◽  
Vol 53 (4) ◽  
pp. 283 ◽  
Author(s):  
P. Soca ◽  
M. Carriquiry ◽  
D. H. Keisler ◽  
M. Claramunt ◽  
M. Do Carmo ◽  
...  
Keyword(s):  
Breeding Season ◽  
Body Condition ◽  
Early Pregnancy ◽  
Body Condition Score ◽  
Average Daily Gain ◽  
Weather Conditions ◽  
Beef Cows ◽  
Plasma Progesterone ◽  
Condition Score ◽  
B 41

The objectives of the present experiment were to analyse the reproductive and productive responses to suckling-restriction treatments and flushing in primiparous grazing beef cows. During 3 years, 153 primiparous anoestrus cows were assigned randomly to one of four treatments in a 2 by 2 factorial arrangement of suckling-management treatments and flushing. Suckling-restriction treatments started at 61 ± 10 days postpartum and consisted of applying nose plates to calves for 12 days (i.e. TS treatment) or 5 days of isolation of the calf from the cow followed by applying nose plates to calves for 7 days as calves were reunited with their mothers (i.e. IS treatment). Nutritional treatments (flushing v. control) started at the beginning of the breeding season, immediately after the suckling-restriction treatments were finished (73 ± 10 days postpartum), with cows receiving or not receiving 2 kg/day of whole-rice middling for 22 days. Cow body condition score (BCS) was recorded every 20 days from calving until 120 days postpartum. Duration of postpartum anoestrus (PPA) and probability of cyclicity were estimated by plasma progesterone concentrations analysed in weekly samples. Pregnant cows were determined by ultrasound 42 days after bull introduction (early pregnancy; EP) and 30 days after the end of the breeding season (total pregnancy; TP). BCS at calving and changes in BCS from calving to the day of BCS nadir (ΔBCS) varied among years depending on forage availability and weather conditions. Increased cow BCS at calving decreased PPA (b = –41 days, P < 0.0001) and, in interaction with ΔBCS, increased EP (P < 0.008) and TP (P < 0.003). Calf weights at weaning and average daily gain were not affected by suckling-restriction or flushing treatments. Isolated temporary suckling control reduced PPA by 11 days when compared with temporary suckling control (P < 0.004). Flushing increased EP by 40%, which was also affected by BCS at calving and was greater in cows that gained, than in those that maintained or lost BCS. We conclude that flushing was useful in improving early pregnancy rates of primiparous beef cows with ‘suboptimal’ body condition (lower than 4.5) at calving and grazing native pasture.

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