scholarly journals Evaluation of dietary effect of cassava peel meal bio-improved with calopogonium mucunoides on nutrient retention and growth performance of broiler chickens

2021 ◽  
Vol 48 (1) ◽  
pp. 91-101
Author(s):  
E. K. Ndelekwute ◽  
C. O. Okereke ◽  
E. D. Assam ◽  
R. Obongekpe
Keyword(s):  
Feed Intake ◽  
Broiler Chickens ◽  
Nutritive Value ◽  
Live Weight ◽  
Nutrient Digestibility ◽  
Energy Utilization ◽  
Ether Extract ◽  
Gain Ratio ◽  
Calopogonium Mucunoides ◽  
Cassava Peel

Due to skepticism that follows the use of cassava peel meal, it has been advocated that its nutritive value for poultry be improved. Thus an experiment was conducted to evaluate the dietary effect of cassava peel meal (CPM) improved by supplementing with Calopogonium mucunoides (CM) on apparent nutrient digestibility, growth, meat yield and internal organs of broiler chickens. The CPM was improved by mix-grinding 1000g of it with fresh and succulent leaves CM at 0, 10, 20, 30 and 40% levels, respectively and included in the diets. One hundred and forty-four (144), one day old Hubbard chicks were used. They were grouped into six treatments (T1-T6), replicated into three and with eight birds/replicate in a completely randomized design (CRD). Treatment 1 (T1) was the control diet without CPM, T2 contained unimproved CPM while T3 – T6 contained CPM mixed with 10, 20, 30 and 40% CM, respectively. Feed and water were offered ad libitum for 49 days. Results showed that CM improved the crude protein, ether extract and fibre content of CPM. Live weight and Feed: gain ratio were better (P<0.05) with improved CPM but negatively affected by unimproved CPM at the starter phase. Also at the starter phase feed intake was not altered significantly (P>0.05). At the finisher phase while the live weight was increased by 20-40% improved CPM, the feed intake was reduced (P<0.05). Best feed: gain ratio was recorded by 40% improved CM. Unimproved CPM reduced digestibility of dry matter, protein, ether extract and energy utilization; dressed percentage, the weight of breast, gizzard, kidney, pancreas and small intestine but increased bile volume and caeca size. Therefore, it is recommended that 40% C. muconoides could be used to improve cassava peel meal for inclusion in diets of broiler chickens     A cause du scepticisme qui suit l'utilisation de la farine d'écorce de manioc, il a été préconisé que sa valeur nutritive pour la volaille soit améliorée. Ainsi, une expérience a été menée pour évaluer l'effet diététique de la farine d'écorce de manioc (le 'CPM') améliorée en complétant avec Calopogonium mucunoides (le 'CM') sur la digestibilité apparente des nutriments, la croissance, le rendement en viande et les organes internes des poulets de chair. Le 'CPM' a été amélioré en mélangeant 1000 g de celui-ci avec des feuilles fraîches et succulentes 'CM' à des niveaux de 0, 10, 20, 30 et 40% respectivement et inclus dans les régimes. Cent quarante- quatre (144) poussins Hubbard d'un jour ont été utilisés. Ils ont été regroupés en six traitements (T1-T6), répliqués en trois et avec huit oiseaux / répliques dans un plan complètement randomisé (le 'CRD'). Le traitement 1 (T1) était le régime témoin sans CPM, T2 contenait du CPM non amélioré tandis que T3-T6 contenait du CPM mélangé à 10, 20, 30 et 40% de 'CM', respectivement. Des aliments et de l'eau ont été offerts à volonté pendant 49 jours. Les résultats ont montré que le 'CM' améliorait la teneur en protéines brutes, en extrait d'éther et en fibres du 'CPM'. Le poids vif et le rapport alimentation : gain étaient meilleurs (P <0,05) avec un 'CPM' amélioré, mais affectés négativement par un 'CPM' non amélioré lors de la phase de démarrage. De même, lors de la phase de démarrage, la prise alimentaire n'a pas été modifiée de manière significative (P> 0,05). Lors de la phase de finition, alors que le poids vif était augmenté de 20 à 40% de 'CPM' amélioré, la prise alimentaire était réduite (P <0,05). Le meilleur rapport alimentation : gain a été enregistré par une 'CM' améliorée de 40%. Le CPM non amélioré réduit la digestibilité de la matière sèche, des protéines, de l'extrait d'éther et de l'utilisation de l'énergie ; pourcentage habillé, le poids du sein, du gésier, des reins, du pancréas et de l'intestin grêle mais augmentation du volume de la bile et de la taille des caecas. Par conséquent, il est recommandé d'utiliser 40% de muconoides de C. pour améliorer la farine de pelure de manioc à inclure dans l'alimentation des poulets de chair.

scholarly journals Effect of dietary Black pepper (Piper nigrum) on the performance of broiler

2015 ◽  
Vol 44 (2) ◽  
pp. 120-127 ◽  
Author(s):  
EK Ndelekwute ◽  
KD Afolabi ◽  
HO Uzegbu ◽  
UL Unah ◽  
KU Amaefule
Keyword(s):  
Feed Intake ◽  
Protein Efficiency Ratio ◽  
Live Weight ◽  
Black Pepper ◽  
Nutrient Digestibility ◽  
Energy Utilization ◽  
Piper Nigrum ◽  
Efficiency Ratio ◽  
Gain Ratio ◽  
Dietary Treatments

An experiment was conducted to determine the dietary effect of different levels of ground black pepper (Piper nigrum) on growth performance and apparent nutrient digestibility of broiler chickens. There were five dietary treatments each containing 0, 0.25, 0.50, 0.75 and 1.00 % black pepper (BP) fed at both starter and finisher phases. One hundred and fifty (150) day old chicks of Arbor-acre strain were divided into five dietary groups having three replication with 10 in each. The five dietary treatments were randomly assigned into five groups. The birds were fed and watered ad libitum. At the starter phase 0.25 and 0.5 % BP improved live weight significantly (p<0.05). Feed intake was significantly (p<0.05) reduced at 1.00% BP. There were no significant differences (P>0.05) in daily gain, feed: gain ratio and protein efficiency ratio. At the finisher phase, final live weight was improved by 0.25% (p<0.05). Final live weight, feed intake, weight gain, feed: gain ratio and protein efficiency ratio were negatively affected by 0.75 and 1.0%BP. Fecal moisture was significantly (P<0.05) reduced by 0.25% while dry matter, protein and ether extract digestibility were improved by all the levels of BP. None of the BP levels improved crude fibre digestibility (p>0.05) over the control. NFE and energy utilization were improved by 0.25 and 0.5%, but significantly (p<0.05) reduced by 1.00% BP.Bang. J. Anim. Sci. 2015. 44(2): 120-127

scholarly journals Effect of dietary L- Carnitine supplementation of diets containing cashew nut reject meal by broiler chickens

2020 ◽  
Vol 40 (1) ◽  
pp. 67-72
Author(s):  
A. O. Fafiolu ◽  
A. O. Oso ◽  
O. M. O. Idowu ◽  
A. V. Jegede ◽  
R. A. Sobayo ◽  
...  
Keyword(s):  
Weight Gain ◽  
Feed Intake ◽  
Broiler Chickens ◽  
Live Weight ◽  
Nutrient Utilization ◽  
Nutrient Digestibility ◽  
Average Weight ◽  
Carnitine Supplementation ◽  
Gain Ratio ◽  
Cashew Nut

In a completely randomized designed, two hundred and forty day-old broiler chicks were randomly assigned to four dietary treatments containing 0, 2.5, 5.0 and 7.5mg kg-1 Lcarnitine. Each of the diets contained equal amount of maize and cashew nut reject meal (CNRM). The birds were randomly divided into sixteen groups of fifteen chicks each after weight equalisation. Each diet was assigned to four groups of birds representing four replicates per experimental diet. Measurements taken during starting and finishing phase included average live weight, average weight gain, average feed intake while feed to gain ratio was calculated. Nutrient digestibility of the experimental diets was also evaluated. Results between 0-4weeks indicated that body weights ranged from 673.71g in the birds that received 2.5mgkg-1 to 700.21g in the birds that received 7.5mgkg-1 L-carnitine. Weight gain and feed intake values were significantly (P<0.05) affected by L-carnitine levels. Feed to gain ratio values were elevated when birds were fed 0 and 2.5mgkg-1 L-carnitine levels. Evaluation of nutrient utilization showed a significant (P<0.05) influence on crude protein and ether extract values. Between 5-8 weeks of rearing, feed intake increased (P<0.05) as Lcarnitine levels increased in diets while lower (P<0.05) feed to gain value was recorded at high level of dietary L carnitine. Nutrients utilization parameters were not affected (P>0.05) during finishing phase. Overall results showed that highest body weight and weight gain were obtained in the group that received 7.5mgkg-1 L-carnitine supplementation. The study showed that supplementing CNRM diets up to 7.5mgkg-1 is beneficial to growth and utilization of broiler chickens. However, this was more effective at the starter phase.

scholarly journals Antibacterial action and dietary effect of lemon juice on nutrient digestibility and growth performance of broiler chickens

2020 ◽  
Vol 46 (2) ◽  
pp. 102-110
Author(s):  
E. K. Ndelekwute ◽  
E. D. Assam ◽  
U. L. Unah ◽  
E. M. Assam ◽  
A. C. Okonkwo
Keyword(s):  
Broiler Chickens ◽  
Bacterial Load ◽  
Good Practice ◽  
Live Weight ◽  
Lemon Juice ◽  
Nutrient Digestibility ◽  
Energy Utilization ◽  
Antibacterial Action ◽  
Crude Fibre ◽  
Ad Libitum

trial to determine the bactericidal effect of lemon juice on feed bacterial load and its dietary effect on growth and apparent nutrient digestibility of broiler chickens. There were five dietary treatments (T1 – T5) containing lemon juice 0.0, 10, 15, 20 and 25mL/kg diet, respectively. Each treatment was replicated three times with 10 birds each, giving 30 birds per treatment. The experiment was arranged in completely randomized design (CRD). Starter diet was fed ad libitum for 3 weeks and finisher diet for 4 weeks. Water was given also ad libitum throughout the experimental period. Citric and ascorbic acids content of the lime and the pH were determined. At the end of the experiment, results showed that the juice contained ascorbic acid (2.76), citric acid (4.23) with low pH (3.87) and exhibited antibacterial action. Above 10mL/kg inclusion level, apparent nutrient digestibility of crude protein, ether extract, crude fibre, ash and energy utilization were improved. At the starter phase 20 and 25mL/kg improved final live weight and protein efficiency ratio. Final live weight was improved by 15, 20 and 25mL/kg at the finisher phase. In conclusion, addition of 15mL/kg lemon juice in broiler diets could be a good practice and is recommended.

scholarly journals Evaluation of the performance characteristics, nutrient digestibility and carcass quality of broiler chickens fed Lacto acidophilus®as a replacement for a commercial antibiotic

2021 ◽  
Vol 48 (1) ◽  
pp. 166-174
Author(s):  
E. Opoola ◽  
C. Z. Kahuwai ◽  
T. S. Olugbemi
Keyword(s):  
Weight Gain ◽  
Feed Intake ◽  
Broiler Chickens ◽  
Live Weight ◽  
Nutrient Digestibility ◽  
Daily Weight Gain ◽  
Control Group ◽  
Growth Promoter ◽  
Crude Fibre ◽  
Final Body Weight

An experiment was conducted to evaluate efficacy of Lacto acidophilus on the growth performance, carcass characteristics and nutrient digestibility of broiler chickens. Two hundred and twenty five (225), one day old chicks were purchased from local commercial hatchery and were randomly divided into 5 groups and each group had 3 replicates of 17 chicks in a completely randomized design. Five iso-caloric and iso-nitrogenous (ME 2998kcal/ kg and CP 23.21%) broiler starter and finisher (ME 2990 kcal/ kg and CP 20.33%) experimental diets containing 0, 150, 200 and 250g Lacto acidophilus® for T1-T4 respectively and T5 containing Oxytetracycline were formulated. Broiler starter and finisher diets were fed from 0-3 and 4-7 weeks, respectively. Data obtained were subjected to analysis of variance using Statistical Analysis System and significant differences between treatments means were separated using Duncan Multiple Range Test. There were significant (P<0.05) difference in final weight, weight gain, average daily weight gain (ADWG), total feed intake (TFI), average daily feed intake (ADFI), feed conversion ratio (FCR) and feed cost/kg gain across the treatment groups. It was observed that chickens fed dietary Oxytet (oxytetracycline) had the best results in terms of the final body weight, weight gain and ADWG but similar to those fed 150 and 200g Lacto acidophilus® addition levels. The percentage dry matter (DM), crude protein (CP), crude fibre (CF), ether extracts (EE) and ash retention increased with increase in Lacto acidophilus® inclusion with exception for 250gLacto acidophilus® inclusion (CP, CF, EE). However, it was observed that chickens fed dietary levels of Lacto acidophilus® had the best live weight, dressed weight and dressing percentage compared to the control group. It was concluded that chickens fe Lacto acidophilus® inclusion may as well compete favorably with antibiotics growth promoter fed chickens.     Une expérience a été menée pour évaluer l'efficacité de Lacto acidophilus sur la performance de croissance, les caractéristiques de la carcasse et la digestibilité nutritive des poulets de gril. Deux cent vingt-cinq (225), poussins d'un jour ont été achetés à l'écloserie commerciale locale et ont été répartis au hasard en 5 groupes et chaque groupe avait 3 répliques de 17 poussins dans une conception complètement randomisée. Cinq iso- caloriques et iso-azotés (le 'ME' 2998kcal/kg et le 'CP' 23.21%) démarreur et finisseur de poulet de gril (le 'ME' 2990 kcal/kg et le 'CP' 20.33%) des régimes expérimentaux contenant respectivement 0, 150, 200 et 250 g d'acidophilus lacto® pour le T1-T4 et le T5 contenant de l'Oxytetracycline ont été formulés. Les régimes d'entrée et de finisseur de poulet de gril ont été alimentés de 0-3 et 4-7 semaines, respectivement. Les données obtenues ont fait l'objet d'une analyse de la variance à l'aide du système d'analyse statistique et des différences significatives entre les moyens de traitement et ils ont été séparées à l'aide du test à distance multiple Duncan. Il y avait une différence significative (P<0,05) dans le poids final, le gain de poids, le gain de poids quotidien moyen (le 'ADWG'), la consommation totale d'aliments pour animaux (le 'TFI'), l'apport quotidien moyen en aliments pour animaux (ADFI), le ratio de conversion des aliments pour animaux (FCR) et le gain coût/kg des aliments pour animaux dans les groupes de traitement. On a observé que les poulets nourris oxytet alimentaire (oxytetracycline) ont eu les meilleurs résultats en termes de poids corporel final, gain de poids et de 'ADWG', mais similaire à ceux nourris 150 et 200g Lacto acidophilus® niveaux d'addition. Le pourcentage de matière sèche (le 'DM'), de protéines brutes (le 'CP'), de fibres brutes (le 'CF'), d'extraits d'éther (le 'EE') et de rétention de cendres a augmenté avec l'augmentation de lacto acidophilus® l'inclusion à l'exception de 250 glacto acidophilus® inclusion (CP, CF, EE). Cependant, il a été observé que les poulets nourris à des niveaux alimentaires de Lacto acidophilus® avaient le meilleur poids réel, le poids habillé et le pourcentage de vinaigrette par rapport au groupe témoin. Il a été conclu que les poulets feLacto acidophilus® inclusion peut aussi bien rivaliser favorablement avec les antibiotiques promoteur de croissance nourris poulets.

Nutrient digestibility and carcass characteristics of broiler chickens fed different sources of animal protein

2020 ◽  
Vol 47 (3) ◽  
pp. 225-233
Author(s):  
O. O. Egbewande
Keyword(s):  
Broiler Chickens ◽  
Crude Protein ◽  
Dry Matter ◽  
Fish Meal ◽  
Carcass Characteristics ◽  
Live Weight ◽  
Nutrient Digestibility ◽  
Breast Muscle ◽  
Ether Extract ◽  
Crude Fibre

One of the most important aspects of animal nutrition is digestibility of ingested materials which has a direct relationship with the health status of an animal. The effect of different fish meal alternatives (maggot, termite, grasshopper and lizard meals) on nutrient digestibility and carcass characteristics of broiler chickens was investigated in this 56 days feeding trial. One hundred and fifty broiler chicks (Marshal breed) were used for the study. Birds were assigned into five dietary groups of 30 chicks each and further divided into three replicates of 10 chicks each. Five experimental diets were formulated to contain 5% fish meal, maggot meal, termite meal, grasshopper meal and lizard meal in treatments 1, 2, 3, 4 and 5 (tagged T1 , T2 , T3 , T4 and T5 ) respectively in starter phase, while fish meal was replaced with 2.5% maggot, termite, grasshopper and lizard meals in treatments 2, 3, 4 and 5 respectively in finisher phase. The chicks were allocated into the four diets in a completely randomized design and housed in a deep litter pen with feed and water served without restriction. Results from dry matter, crude protein, crude fibre, ash, ether extract and nitrogen free extract digestibility showed significant (P<0.05) differences in the test ingredients on birds. Dry matter digestibility ranged from 88.35% in birds fed T3 to 91.86% in birds fed T5 . Crude fibre followed the same trend with the lowest (70.80%) in T3 and the highest (84.83%) in T5 , but ether extract digestibility was at the opposite trend where birds fed T3 had the highest (87.14%), and those on T5 gave the lowest (80.86%). Crude protein showed significant decrease across the treatments from 86.10% in T1 to 80.88% in T5 . Ash digestibility ranged from 68.84% in T2 to 77.05% in T1 . Results on cut-up parts showed that there were no significant (P>0.05) influence on all the parameters considered except in live weight, dressed weight and breast muscle weights where there were significant (P<0.05) differences. Internal organ proportions of the broiler birds showed no significant (P>0.05) effect of the test ingredients on all the parameters considered except in abdominal fat. It can be concluded that crude protein digestibility, live weight, dressed weight and breast muscle values in birds fed T2 (maggot meal) were higher than birds fed other test ingredients and as such recommended as an alternative to fish meal.

scholarly journals Nutrient digestibility parameters as a tool for analysis of the intestinal health of broiler chickens

2016 ◽  
Vol 37 (4Supl1) ◽  
pp. 2499
Author(s):  
Anderson Mori ◽  
Julyana Machado da Silva Martins ◽  
Genilson Bezerra de Carvalho ◽  
Fabyola Barros de Carvalho ◽  
Jose Henrique Stringhini ◽  
...  
Keyword(s):  
Weight Gain ◽  
Feed Intake ◽  
Broiler Chickens ◽  
Nutrient Digestibility ◽  
Control Group ◽  
Ether Extract ◽  
Intestinal Health ◽  
Feed Conversion ◽  
Villus Height ◽  
Oxidized Oil

The study was performed with the objective of verifying raw soy feed, oxidized oil feed, and a control group. Performance evaluation was done at 7, 14, and 21 days of age. Metabolism assay was carried out between the 17th and 20th days for nutrient digestibility analysis. On the 21st day, two birds per repetition were sent for necropsy and collection of intestine fragments (duodenum and jejunum) for histomorphometric analysis. Eight to 14 days after treatment with Salmonella, individuals showed lower feed intake and feed conversion than the control group. Treatment with coccidiosis decreased all performance parameters in the control. Raw soybeans and oxidized oil induce lower weight gain and higher feed conversion compared to the control feed. Unlike after 14 days, at 21 days treatment with salmonella a decrease in weight gain was noted. For the group challenged by coccidiosis feed intake, the feed conversion remained lower than the control group. Undesirable effects on performance in the groups fed raw soybean and oxidized oil remained at up to 21 days. In the evaluation of digestibility, it was observed that raw soy had lower values for digestibility of dry matter, ether extract, and nitrogen balance due to intake. In addition, a lower ratio of villus:crypt measurements was observed. Lower villus height was found in the duodenum of the group challenged by coccidiosis. This group presented a positive correlation between the digestibility of ether extract and the duodenum, indicating that increased villus height implies an increased digestibility of ether extract. The results obtained for the jejunum showed a positive correlation with villus height in groups challenged by coccidiosis, raw soybeans, and oxidized oil; and to crypt depth in the group challenged with oxidized oil. The information obtained in the present study demonstrates that nutrient digestibility parameters can be useful tools for the analysis of the intestinal health of broiler chickens.

scholarly journals Growth performance and nutrient digestibility of broiler chickens fed wood ashbased diets

2020 ◽  
Vol 47 (2) ◽  
pp. 144-150
Author(s):  
O. J. Alabi ◽  
I. C. Alemede ◽  
S. S. A. Egena ◽  
C. O. Obari ◽  
C. Ewa ◽  
...  
Keyword(s):  
Weight Gain ◽  
Growth Performance ◽  
Feed Intake ◽  
Broiler Chickens ◽  
Live Weight ◽  
Wood Ash ◽  
Nutrient Digestibility ◽  
Daily Weight Gain ◽  
Shea Butter ◽  
Crude Fibre

This study was conducted to determine the growth performance and nutrient digestibility ofbroiler chickens fed wood-ash based diet. A total of 120 broiler chickens were randomlyallocated to four treatments in the completely randomized design. Treatment 1 was thecontrol while Treatments 2, 3, and 4 were Neem ash (NTA), Shea butter ash (SBA) and Locustbean ash (LBA), respectively. Each treatment has three replicates and ten birds per replicate.Data on growth rate, live weight, feed intake and mortality were collected while feedconversion ratio was calculated. Apparent dry matter, crude protein, crude fibre, etherextract and nitrogen free extract retention were also determined. All data collected wereanalyzed using one-way analysis of variance. Starter phase results shows that birds on SBA ash had the highest final weight (366.00 g), body weight gain (173.71 g) and feed intake (546.03 g) and were significantly higher (p<0.05) than the control. At the finisher phase, all ash treatment had higher (p<0.05) final, daily weight gain and better (p<0.05) feed conversion than the control dietary. The digestibility results indicated birds on LBA diet had the highest crude fibre and ash content. The study showed that wood ash influenced growth performance and nutrient retention of broiler chickens. Chickens on ash-based diets performed better that the control at the finisher phase. 

scholarly journals Effect of irish potato peel and yam peel meals on the performance and nutrient digestibility of weaner rabbits

2019 ◽  
Vol 46 (3) ◽  
pp. 240-244
Author(s):  
R. Yaqoob ◽  
J. J. Omage ◽  
Y. Ahmad
Keyword(s):  
Feed Intake ◽  
Nutritive Value ◽  
Control Diet ◽  
Nutrient Digestibility ◽  
Irish Potato ◽  
Average Weight ◽  
Potato Peel ◽  
Gain Ratio ◽  
Feed Cost ◽  
Dietary Treatments

A study was conducted to evaluate the nutritive value of Irish potato peel meal (IPPM) and  yam peel meal (YPM) on the performance of weaner rabbits. Twenty-five weaner rabbits  were assigned to five dietary treatments of five rabbits each, and were individually caged in a  completely randomized design. The rabbits were fed the dietary treatments, where treatment  one (T1) was the control with no IPPM and YPM, treatment two (T2) and treatment three (T3)  with 20% and 30% IPPM, respectively while treatment four (T4) and five (T5) had 20% each  and 30% each of the combination of IPPM and YPM, respectively. The parameters measured  were initial weight, final weight, average feed intake, average weight gain, feed to gain ratio,  water intake, feed cost/Kg gain, proximate composition and feed digestibility of the feed  materials. The result showed that average daily feed intake was significantly higher  (P<0.05) in the rabbits fed with the control diet (T1) compared to the other treatments. The  feed to gain ratio were similar in all the treatments. The feed cost per kg gain was  significantly different (P<0.05) across the treatments. crude protein, crude fibre and ash  digestibility were significantly higher in T1 (control) compared to T2, T3and T5, but was  similar to T4. ether extract and NFE digestibility were significantly higher (P<0.05) in T1  compared to all other treatments. It is concluded that, Irish potato peel and yam peel meals  can be used to replace maize in the conventional rabbit feed without any adverse effect on  their growth performance and nutrient digestibility. 

scholarly journals Inclusion of Camelina, Flax, and Sunflower Seeds in the Diets for Broiler Chickens: Apparent Digestibility of Nutrients, Growth Performance, Health Status, and Carcass and Meat Quality Traits

Animals ◽  
2020 ◽  
Vol 10 (2) ◽  
pp. 321 ◽  
Author(s):  
Malwina Zając ◽  
Bożena Kiczorowska ◽  
Wioletta Samolińska ◽  
Renata Klebaniuk
Keyword(s):  
Broiler Chickens ◽  
Nutrient Digestibility ◽  
Poultry Meat ◽  
Iron Level ◽  
Ether Extract ◽  
Sunflower Seeds ◽  
Positive Effects ◽  
Extract Content ◽  
Flax Seeds ◽  
Dietary Value

The study determined the effect of the addition of 15% of camelina, flax, and sunflower seeds to iso-caloric and iso-nitrogenous diets for broiler chickens during 21–42 days of age on the nutrient digestibility, production traits, slaughter analysis parameters, hematological indices, blood mineral elements, and dietary value of breast and drumstick meat. Two hundred one-day-old broiler chickens were assigned to four groups (treatments) with five replicates (10 birds per cage, 5 females and 5 males). The experiment lasted 6 weeks. Broiler chickens receiving diets supplemented with camelina and flax seeds exhibited an increase (p < 0.05) in average body weight and a decrease (p < 0.05) in the ether extract content and energy digestibility of the diets. Moreover, the best carcass quality with a high proportion of muscles and low abdominal fat content (p < 0.05) was noted in broilers fed flax- and sunflower-enriched diets. The treatments with the oil seeds reduced the ether extract content and the calorific value of breast and drumstick muscles. The flax seeds contributed to an increase in the Fe content in drumstick muscles. Additionally, some blood parameters were influenced by the flax seed supplementation, e.g., the level of hemoglobin declined (p < 0.05) and the iron level in plasma increased (p < 0.05). It can be concluded that the camelina, flax, and sunflower seeds can be regarded as good dietary components with positive effects on the dietary value of poultry meat.

A note on the housing of intact male and female pigs together in the same pen during the growing period to bacon weight

1980 ◽  
Vol 31 (3) ◽  
pp. 321-322 ◽  
Author(s):  
R. S. Barber ◽  
R. Braude ◽  
K. G. Mitchell ◽  
Joanne Thomas
Keyword(s):  
Feed Intake ◽  
Live Weight ◽  
Intake Rate ◽  
Feeding Trial ◽  
Intact Male ◽  
Male And Female ◽  
Gain Ratio ◽  
Growing Period ◽  
Single Sex ◽  
Dressing Percentage

ABSTRACTA feeding trial was carried out, using 180 pigs, to assess the effect on performance when intact male and female pigs were housed together in the same pens from 20 to 90 kg live weight. There were no significant differences in daily feed intake, rate of growth or feed: gain ratio between pigs from mixed-sex pens and pigs from single-sex pens. Carcass measurements indicated slightly leaner carcasses for intact male pigs whether housed in separate pens or together with female pigs, while female pigs likewise had a significantly higher dressing percentage.

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