Effect of dietary mannan-oligosaccharides on some blood biochemical, haematological parameters and carcass traits in purebred New Zealand White and crossbred rabbits

2016 ◽  
Vol 56 (12) ◽  
pp. 2133 ◽  
Author(s):  
Tamer M. Abdel-Hamid ◽  
Mahmoud H. Farahat
Keyword(s):  
New Zealand ◽  
Plasma Cholesterol ◽  
Carcass Traits ◽  
Genetic Group ◽  
Carcass Weight ◽  
Haematological Parameters ◽  
Blood Biochemical ◽  
Hb Concentration ◽  
Dietary Treatments ◽  
Mannan Oligosaccharides

This study examined the effect of dietary treatments containing mannan-oligosaccharides (MOS) on some blood biochemical, haematological parameters and carcass traits of 60 weaned purebred New Zealand White (NZW) and New Zealand White × Rex (NZW × RX) crossbred rabbits. They were assigned to a 2 × 3 factorial arrangement (two genetic groups; and three dietary treatments of zero, 0.5 or 1.0 g MOS/kg of diet). Blood samples have been collected at slaughter at 10 weeks of age. Significant differences were observed among dietary treatments for all biochemical and haematological parameters with the exception of triglycerides. There was a genetic group and dietary treatment interaction for albumen (P < 0.001), cholesterol (P = 0.002), red blood cell count (RBC) (P = 0.007), haemoglobin (Hb) concentration (P = 0.009) and haematocrit % (P < 0.001) observed. Rabbits from the NZW × RX genetic group fed a diet with 1.0 g/kg MOS had the highest plasma cholesterol level (0.97 ± 0.012 mmol/L), whereas the lowest level (0.89 ± 0.012 mmol/L) was detected in rabbits from the NZW × RX genetic group fed the Control diet. Rabbits from the NZW genetic group fed the diet with 1.0 g/kg MOS had the highest RBC (4.27 ± 0.083 × 106/mm3) whereas rabbits from the same genetic group fed the diet with 0.5 g/kg MOS had the highest Hb concentration (11.43 ± 0.097 g/dL) and haematocrit (30.29 ± 0.163%). Some carcass traits such as liveweight, hot and reference carcass weight (P < 0.001), percentage of periscapular, and perirenal fat relative to reference carcass weight (P < 0.05) were significantly affected by the dietary MOS supplementation. In conclusion, MOS supplementation in the diet, especially 1.0 g/kg, improved immunity, health indicators in the blood, liveweights and carcass weights of rabbits without any harmful effects on the other carcass traits. Furthermore, purebred NZW and NZW × RX crossbred rabbits showed relatively similar performance for all traits of interest. A significant interaction between genetic group and dietary supplementation of MOS was shown for albumen, cholesterol, RBC and haematocrit %.

EVALUATION OF CARCASS CHARACTERISTICS OF BROILER CHICKENS FED GRADED LEVELS OF TREATED SESAME WASTE

2021 ◽  
Vol 4 (4) ◽  
pp. 502-506
Author(s):  
Nasir M. Galadima ◽  
A. M. Aliyu ◽  
I. Bature
Keyword(s):  
Broiler Chickens ◽  
Carcass Traits ◽  
Carcass Characteristics ◽  
Liver Weight ◽  
Carcass Weight ◽  
Broiler Chicks ◽  
Intestinal Length ◽  
Dietary Treatments ◽  
Intestinal Weight

A total of one hundred and twelve day-old broiler chicks (Amo strains) were used to evaluate carcass traits fed with diets containing graded levels of treated sesame waste and its appropriate level of inclusion in the diet. The experimental birds were randomly allocated to four dietary treatments of 28 birds per treatment and each treatment was replicated four times with seven birds per pen. Results obtained showed that there were significant (P<0.05) differences in terms of weight (g), pluck weight (g), carcass weight (g), intestinal weight (g) and liver weight (%). Non-significant (P<0.05) difference were observed in terms of intestinal length (cm), wing weight (g), thigh weight (g), head & legs (%), gizzard (%), lungs (%), heart (%) liver (%), kidney (%) and spleen (%).

116 Effect of Coated and Non-coated Steroidal Implants on Growth Performance, Dietary Net Energy Utilization and Carcass Traits of Feedlot Finishing Steers

2021 ◽  
Vol 99 (Supplement_1) ◽  
pp. 36-37
Author(s):  
Elizabeth M Buckhaus ◽  
Zachary K Smith
Keyword(s):  
Growth Performance ◽  
Carcass Traits ◽  
Estradiol Benzoate ◽  
Corn Silage ◽  
Energy Utilization ◽  
Carcass Weight ◽  
Net Energy ◽  
Trenbolone Acetate ◽  
Coated Implant ◽  
Dietary Treatments

Abstract Maine-Anjou x Angus steers (n = 156, initial BW 366 ± 37.2 kg) were used in a 132-d finishing experiment at the Ruminant Nutrition Center in Brookings, SD. Steers were weighed on two consecutive days and assigned into 5 weight blocks. Within each weight block steers were randomly assigned to two implant types (equal steroidal hormone dose; both from Zoetis, Parsippany, NJ) and two dietary treatments in a 2 × 2 factorial arrangement. Implant treatments consisted of 1) Coated implant, 200 mg trenbolone acetate (TBA), 28 mg estradiol benzoate (EB) (Synovex ONE Feedlot, ONE) or 2) Non-coated implant, 200 mg TBA, 28 mg EB (Synovex PLUS; PLUS), placed in the left ear. Dietary treatments were 1) 15% or 2) 30% corn silage (DM basis). No interaction between implant and corn silage inclusion was observed for carcass-adjusted (hot carcass weight / 0.63) growth performance, dietary net energy (NE) utilization or carcass traits (P ≥ 0.16). Bunks were managed using a slick bunk approach and all diets contained (DM basis) 33 mg/kg monensin sodium. Implant status was checked on d 28 by a single trained evaluator; steers with missing implants were immediately re-implanted. There was no difference in carcass-adjusted growth performance between implants (P ≥ 0.85). There were no differences in observed NE or the observed-to-expected ratio of NE for either growth or maintenance (P ≥ 0.90). No differences were observed for dressing percent, hot carcass weight, ribeye area, or rib fat (P ≥ 0.22). Marbling differed between implant treatments (433 to 466 ± 8.7; P = 0.01) for PLUS and ONE respectively. Implanting cattle with a coated implant had no detrimental effect on growth performance or carcass traits, but it did increase marbling scores.

Growth performance, carcass traits, behaviour and welfare of New Zealand White rabbits housed in different enriched cages

2017 ◽  
Vol 57 (8) ◽  
pp. 1759 ◽  
Author(s):  
Hesham Mohammed ◽  
Mohammed Nasr
Keyword(s):  
New Zealand ◽  
Feed Intake ◽  
Average Daily Gain ◽  
Carcass Traits ◽  
Carcass Weight ◽  
Control Group ◽  
Abnormal Behaviour ◽  
Total Weight Gain ◽  
New Zealand White Rabbits ◽  
Daily Gain

The present study investigated the effect of gnawing sticks as environmental enhancers on the performance, carcass traits and behaviour of individually housed growing rabbits. Two batches of weaned New Zealand White (NZW) rabbits were used, each consisting of 135 animals. Rabbits were homogeneously classified into the following three groups, each consisting of 45 rabbits: rabbits housed individually in cages without enrichment (control), rabbits housed individually in cages enriched with wooden sticks from apple tree and rabbits housed individually in cages enriched with wooden sticks from willow tree. Rabbits reared in enriched cages with apple or willow sticks showed a significantly (P &lt; 0.0001) better performance (live bodyweight at slaughter 2526 and 2591 g, total weight gain 1620 and 1683 g, average daily gain 21.04 and 21.87 g and daily feed intake 78.57 and 74.89 g respectively), and had a higher carcass weight (1648.39 and 1750.26 g respectively, P &lt; 0.0001) than did the control group. Rabbits in apple-stick group had a higher daily feed intake (78.57 g, P &lt; 0.0001) and lower carcass weight (1648.39 g, P &lt; 0.0001) than did those in the willow-stick group. The cortisol concentration was significantly (P &lt; 0.0001) lower in apple and willow groups (9.44 ± 0.02 and 9.35 ± 0.02 nmol/L respectively) than in the control group (17.24 ± 0.03 nmol/L). Moreover, cage enrichment with apple or willow sticks improved the duration of feeding (7.08 and 7.39 min/3 h respectively, P &lt; 0.0001) and drinking (2.54 and 2.67 min/3 h respectively, P &lt; 0.0001) time, and reduced abnormal behaviour (biting the bars of the cage 0.24 and 0.34 min/3 h respectively, P = 0.001) when compared with the control group. Overall, the current results indicated that cage enrichment (with wooden sticks from apple or willow trees for gnawing) increased the final bodyweight and some carcass traits, reduced abnormal behaviour and potentially improved rabbit welfare during intensive rabbit breeding.

scholarly journals Effect of rations with fresh leaves of Gmelina arborea on growth performance and organ weights of rabbit bucks

2019 ◽  
Vol 11 (4) ◽  
pp. 317-322 ◽  
Author(s):  
O. Pius ◽  
T. Ahemen ◽  
P.A. Addass
Keyword(s):  
New Zealand ◽  
Growth Performance ◽  
Live Weight ◽  
Carcass Weight ◽  
Performance Parameters ◽  
Gmelina Arborea ◽  
Feeding Trial ◽  
Organ Weights ◽  
Dietary Treatments

Abstract. Thirty rabbit bucks of mixed breeds (New Zealand white x Chinchilla) with average live weight of 852g, aged between 12 and 14 weeks were subjected to a feeding trial for 14 weeks, to determine the effects of diets with different ratio concentrate to fresh leaves of Gmelina arborea (FLGA) on growth performance, relative carcass weight and relative organ weights of rabbit bucks. The rabbits were randomly allo- cated into five treatments: Treatment 1-T1 (100g concentrate /C/: 0g FLGA), Treatment 2-T2 (75g C: 25g FLGA), Treatment 3-T3 (50g C: 50g FLGA), Treatment 4-T4 (25g C: 75g FLGA) and Treatment 5-T5 (00g C: 100g FLGA). The results obtained in this study showed that all the growth performance parameters and relative carcass weights differed significantly (P<0.05) across treatments. Apart from relative liver and lungs weights, which differed significantly (P<0.05) across treatments, other viscera organs were not affected by the dietary treatments. The results revealed that rabbit bucks in T2 and T3 performed better, rabbits in T4 performed the least, while rabbit bucks in T5 could not survive beyond two weeks. Concentrate to FLGA at the ratios of 75g C: 25 FLGA (T2) and 50g C: 50g FLGA (T3) are therefore, recommended as the best combinations for rabbit breeding bucks.

scholarly journals Genetic analysis of slaughter and carcass quality traits in crossbred rabbits coming from a diallel cross of four maternal lines

2015 ◽  
Vol 23 (4) ◽  
pp. 225 ◽  
Author(s):  
C. Mínguez ◽  
J.P. Sáchez ◽  
M. Ragab ◽  
A.G. El Nagar ◽  
M. Baselga
Keyword(s):  
Maternal Effects ◽  
Growth Traits ◽  
Reference Group ◽  
Carcass Traits ◽  
Diallel Cross ◽  
Genetic Group ◽  
Carcass Weight ◽  
Group V ◽  
Paternal Line ◽  
Dressing Percentage

<p>An experiment was carried out to estimate the genetic group effects and the crossbreeding genetic parameters of slaughter and carcass traits using data on the rabbits that were progeny of does coming from a full diallel cross between 4 maternal lines (A, V, H and LP) mated to bucks of the paternal line R. The rabbits of the 16 genetic groups, corresponding to the type of does of the diallel cross, were distributed in 4 Spanish farms and 1 genetic group (V line) was present in all farms in order to connect records among them and to be used as reference group. Crossbreeding parameters were estimated according to Dickerson’s model. 1896 rabbits were measured for slaughter traits and 950 for carcass traits. The A and LP lines had the lowest values for dressing percentage (–1.71 and –1.98 compared with H line and –1.49 and –1.75 with the V line, respectively). The A line was the heaviest for commercial carcass weight. No relevant differences were observed between the crossbred groups for all traits. Regarding the reciprocal effects, there were significant differences in favour of A line as sire line in the crossbred AV. Regarding the combination of direct and maternal effects, the A line showed significantly higher values for cold carcass weight (133 g., 71 g. and 142 g. compared to the H, LP and V lines). For the same parameter the H line showed significantly higher averages on dressing percentages than A and LP lines, 1.44 and 2.13%, respectively. Line A also showed, in general, better direct- maternal effects than the V line. Grand-maternal effects were less important than direct-maternal ones. The estimates of maternal heterosis were, in general, negative, which could be a consequence of the positive heterosis for litter size. However, despite this relationship between growth and litter traits, it has not been common to find negative maternal heterosis in growth traits. A diminution of dressing percentage was detected in some crossbreds (AL and LV) and care must be taken if these types are used.</p>

Comparative seabird diving physiology: first measures of haematological parameters and oxygen stores in three New Zealand Procellariiformes

2015 ◽  
Vol 523 ◽  
pp. 187-198 ◽  
Author(s):  
BJ Dunphy ◽  
GA Taylor ◽  
TJ Landers ◽  
RL Sagar ◽  
BL Chilvers ◽  
...  
Keyword(s):  
New Zealand ◽  
Haematological Parameters ◽  
Diving Physiology ◽  
Oxygen Stores

scholarly journals 132 Performance response of the grow-finish pig (38 to 142 kg) fed different levels of tryptophan:lysine in diets containing 40% dry distiller grains with solubles

2020 ◽  
Vol 98 (Supplement_4) ◽  
pp. 110-111
Author(s):  
David A Clizer ◽  
Paul Cline ◽  
Brent Frederick ◽  
Ryan S Samuel
Keyword(s):  
South Dakota ◽  
Soybean Meal ◽  
Carcass Weight ◽  
State University ◽  
Research Facility ◽  
Performance Response ◽  
Improved Performance ◽  
Dietary Treatments ◽  
Swine Diets ◽  
Different Levels

Abstract Dried distiller grains with solubles (DDGS) is a popular protein source in grow-finish swine diets to replace soybean meal. An experiment was conducted at the South Dakota State University commercial swine research facility to determine the effect of standardized ileal digestible (SID) Trp:Lys ratio in grow-finish swine diets containing 40% DDGS compared to a standard corn-soybean meal diet. A total of 1,170 pigs (38.6 ± 0.2 kg initial BW) were utilized in a 98-d trial (9 pens per treatment). Pens of pigs were randomly allotted to 1 of 4 DDGS dietary treatments providing SID Trp at 15, 18, 21, and 24% of Lys or a corn-soybean meal diet (18%). Diets were isocaloric, with lysine at 100% of the requirement. From d 0 to 82, increasing Trp:Lys ratio in DDGS diets improved (P &lt; 0.01) BW, ADG, and ADFI with no effect on F:G. Pigs fed the corn-soybean meal diet had greater (P &lt; 0.01) BW, ADG, ADFI, and F:G compared to the DDGS diets with the exception of the ADFI of the 24% Trp:Lys treatment. From d 82 to 98, increasing SID Trp:Lys in DDGS diets had no effect on performance. Overall (d 0 to 98), increasing SID Trp:Lys in DDGS diets increased (P &lt; 0.02) final BW and ADG, but pigs failed to perform to the same degree as the corn-soybean meal diet. Increasing SID Trp:Lys in DDGS diets resulted in an increase in hot carcass weight (P &lt; 0.01); however, diets containing DDGS had decreased (P &lt; 0.02) hot carcass weight, dressing percentage, percent lean, and loin depth compared to pigs fed the corn-soybean meal diet. These results indicate that increasing the SID Trp:Lys in diets containing 40% DDGS improved performance in early grow-finish phases with no effect in late finishing, but performance was inferior to standard corn-soybean meal diets.

scholarly journals Plasma Cholesterol Levels in New Zealand

BMJ ◽  
1961 ◽  
Vol 2 (5250) ◽  
pp. 486-490 ◽  
Author(s):  
J. D. Hunter ◽  
L. C. K. Wong
Keyword(s):  
New Zealand ◽  
Plasma Cholesterol ◽  
Cholesterol Levels

scholarly journals Canonical correlation analysis of body measurements and carcass traits of cross bred rabbit population

2012 ◽  
Vol 28 (4) ◽  
pp. 855-861 ◽  
Author(s):  
D.M. Ogah
Keyword(s):  
Correlation Analysis ◽  
Body Length ◽  
Canonical Correlation Analysis ◽  
Canonical Correlation ◽  
Carcass Traits ◽  
Carcass Weight ◽  
Body Measurements ◽  
Slaughter Weight ◽  
Dressing Percentage ◽  
Criterion Variables

In this study, canonical correlation analysis was applied to estimate the relationship between body measurements and carcass traits of 28 male cross bred rabbits of about 12 weeks of age, reared under semi intensive system. Four body measurements, pre-slaughter weight (PSW) , body length (BL), chest circumference (CC), and ear length (EL) as predictor variable while dressing percentage ( DP) , hot carcass weight (HCW) and cold carcass weight (CCW) as criterion variables. Pre-slaughter weight and body length had significant (P<0.001) simple correlation coefficients with the carcass traits except for dressing percentage. The three canonical variate pairs ranged between .99 to .42 and only the first pair was significant (P<0.001). From the analysis pre-slaughter weight and body length can be regarded as the main factors as live measurement traits, while dressing percentage did not have pronounced effect on the emerged criterion variables.

scholarly journals Energy partitioning of pregnant and lactating rabbit fed combination of concentrate and stylosanthes hamata hay

2020 ◽  
Vol 46 (1) ◽  
pp. 94-100
Author(s):  
D. T. Tsavkar ◽  
M. Y. Latu ◽  
D. T. Tsavkar ◽  
A. K. Olutunmogun ◽  
P. P. Barje ◽  
...  
Keyword(s):  
New Zealand ◽  
Reference Data ◽  
Energy Partitioning ◽  
Nutritional Requirement ◽  
Digestible Energy ◽  
Stylosanthes Hamata ◽  
Pregnancy And Lactation ◽  
Dietary Treatments

The study was carried out to examine energy partitioning of pregnant and lactating rabbit offered levels of concentrate and Stylosanthes hamata hay to ascertain whether it meets their high reproductive and nutritional requirement. Forty-eight nulliparous crossbred does (New Zealand White x California and California x Chinchilla breeds) of eight months old were allocated to four dietary treatments in a completely randomised design. During gestation, 150 g/doe/day concentrate and Stylosanthes hamata hay combinations (30:120g, 60:90g, 90:60g and 120:30g) was offered while 350 g/doe/day concentrate and Stylosanthes hamata hay combinations (70:280g, 140:210g, 210:140g and 280:70g) was offered during lactation. Estimations of digestible energy during pregnancy and lactation were carried out and reference data were used to calculate forDE DE DE DE BalanceDE and DE /LW0.75. req, m, fg, macc, req Results obtained showed non-significant (P>0.05) difference among 90:60 and 120:30% concentrate and Stylosanthes hamata hay combinations in terms of DM DE DE DE intake, intake, req, fg, DE BalanceDE and DE /LW0.75, but were significantly (P<0.05) higher than 30:120 and macc, req 60:90% concentrate and Stylosanthes hamata hay combinations. Rabbit in the 4th week of pregnancy had significantly (P<0.05) higher DE DE DE DE BalanceDE and intake, req, fg, macc, DE /LW0.75 than does in the 2nd week of pregnancy. During lactation, all parameters showed req non-significant (P>0.05) difference. Therefore, the diet combinations were sufficient to provide adequate digestible energy for the physiological needs of does during pregnancy and lactation.

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