scholarly journals Produktivitas Ayam Petelur Fase Layer II dengan Pemberian Pakan Free Feeding Choice

2020 ◽  
Vol 2 (2) ◽  
pp. 57-65
Author(s):  
Auliya Chanifuddin Luthfi ◽  
Suhardi Suhardi ◽  
Eudia Christina Wulandari

Penelitian ini bertujuan untuk mengetahui kebutuhan nutrisi ayam petelur sesuai dengan kondisi fisiologis dan lingkungan guna menunjang produktivitas ayam ras petelur melalui pemberian pakan secara free feeding choice. Penelitian ini dilaksanakan di Dusun Sidoharjo Desa Sumbung, Kecamatan Cepogo, Kabupaten Boyolali. Materi yang digunakan yaitu ayam ras petelur yang berumur 52 minggu sebanyak 30 ekor. Perlakuan yang diberikan yaitu ternak diberi pakan secara bebas pilih dengan bahan pakan premix, jagung, bekatul, dan konsentrat yang diberikan secara ad libitum terukur. Parameter yang diamati adalah konsumsi ransum, HDP, tebal dan berat cangkang, indeks putih telur, indeks kuning telur, dan indeks haugh. Hasil penelitian dianalisis secara kuantitatif melalui pembacaan data dengan grafik. Hasil penelitian menunjukkan bahwa konsumsi ransum ayam petelur lebih rendah jika dibandingkan standar, namun demikian kebutuhan nutriennya dapat terpenuhi karena kandungan nutrisi bahan pakannya baik. Hal tersebut dapat dilihat dari tingginya HDP, berat dan tebal cangkang, serta indeks telur yang baik. Ayam petelur mampu memehuni kebutuhan nutriennya dengan perlakuan free feeding choice.

1981 ◽  
Vol 96 (3) ◽  
pp. 659-668 ◽  
Author(s):  
A. de Jong

SUMMARYAdult goats provided with permanent jugular and portal vein catheters were used to study the relation between spontaneous meals and blood composition in free-feeding goats in order to determine which constituents might fulfil a feedback signal function in the control of feed intake. Animals were fed ad libitum concentrates, supplemented with a small amount of hay. Blood samples were collected before, during and after spontaneous meals by means of a remote sampling system and were analysed for volatile fatty acids, glucose, insulin, glucagon and growth hormone.In a preliminary experiment the relationship between body weight, voluntary feed intake, blood glucose and plasma insulin was examined in goats fed ad libitum concentrates and hay for 18 weeks. The data indicate a regulation of energy balance through control of feed intake. Since an increased glucose and insulin concentration was observed concomitantly with a decline in feed intake, glucose and/or insulin may fulfil a signal function in the control of energy balance.Spontaneous meals were not preceded by a systematic change of any of the above blood constituents. Therefore, it is unlikely that meal initiation is governed by one of those. In contrast, spontaneous meals resulted in a rapid increase of insulin during eating (P < 0·025) whereas no clear changes were observed for the other substances. Thus, insulin might be a candidate for a feedback function in the control of meal duration.


2020 ◽  
Vol 4 (1) ◽  
Author(s):  
Eudia Christina Wulandari ◽  
Angela Nitia Nefasa

The aim of the present research was to evaluate the contribution effect of feeding Wulandari et al. (2013) and Wulandari et al. (2015) rations and free feeding choice in Arab hen. One hundred birds of Arab hen, age was + 14 weeks, with an average body weight of 814,73 g ± 46,86 g were used as experimental animals, and were divided randomly into a randomized block design with 3 treatments and 6 replications. Feedstuffs used for dietary treatments were rice bran, yellow corn, fish meal, Azolla microphylla, CaCO3, oyster shell, meat bone meal, soybean meal, pollard, and top mix. The rations were formulated as ration from Wulandari et al. (2013) and Wulandari et al. (2015). At the same time, there are feedstuff which gived ad libitum without formulated. Conclusion of the research is that free feeding choice affect by palatability feedstuff and gives a random data. Consumption ration on free feeding choice more decrease than another treatments. Keywords: arab’s laying hans, free feeding choice, productivity


2020 ◽  
Vol 4 (1) ◽  
Author(s):  
Eudia Christina Wulandari ◽  
Angela Nitia Nefasa

The aim of the present research was to evaluate the contribution effect of feeding Wulandari et al. (2013) and Wulandari et al. (2015) rations and free feeding choice in Arab hen. One hundred birds of Arab hen, age was + 14 weeks, with an average body weight of 814,73 g ± 46,86 g were used as experimental animals, and were divided randomly into a randomized block design with 3 treatments and 6 replications. Feedstuffs used for dietary treatments were rice bran, yellow corn, fish meal, Azolla microphylla, CaCO3, oyster shell, meat bone meal, soybean meal, pollard, and top mix. The rations were formulated as ration from Wulandari et al. (2013) and Wulandari et al. (2015). At the same time, there are feedstuff which gived ad libitum without formulated. Conclusion of the research is that free feeding choice affect by palatability feedstuff and gives a random data. Consumption ration on free feeding choice more decrease than another treatments. Keywords: arab’s laying hans, free feeding choice, productivity


2020 ◽  
Vol 2 (2) ◽  
pp. 49-56
Author(s):  
Sigit Handoko ◽  
Suhardi Suhardi ◽  
Eudia Christina Wulandari
Keyword(s):  

Penelitian ini bertujuan untuk mengetahui pengaruh pemberian pakan secara free feeding choice terhadap pola konsumsi dan cerminan mikroflora usus ayam petelur fase produksi ke-II. Penelitian dilaksanakan pada bulan Juni – Juli 2020 di kandang ayam petelur di Dusun Sidoharjo, Desa Sumbung, Kecamatan Cepogo, Kabupaten Boyolali. Materi yang digunakan yaitu 30 ekor ayam petelur Lohman Brown umur 52 minggu. Bahan yang digunakan  dalam penelitian ini yaitu jagung, bekatul dan konsentrat layer khusus. Analisis data dilakukan secara kuantitatif dengan pembacaan grafik data yang diperoleh. Hasil penelitian menunjukkan bahwa ayam petelur fase II lebih menyukai pakan jagung dibandingkan dengan bekatul dan konsentrat. Konsumsi jagung yang tinggi mencapai 80 gr/ekor/hari. Rataan konsumsi pakan total cenderung rendah yaitu hanya 109 gr/ekor/hari.  Penambahan jagung rata-rata sebesar 61 gr/ekor/hari sedangkan penambahan konsentrat rata-rata sebesar 28 gr/ekor/hari. Kondisi mikroflora usus halus dan usus besar didominasi oleh bakteri gram positif jenis Bacillus dan terdapat pula bakteri jenis Diplobacillus, Streptobacillus dan Streptococcus. Kesimpulan dari penelitian ini yaitu pemberian pakan menggunakan metode Free Feeding Choice  mampu meningkatkan kesehatan saluran pencernaan serta meningkatkan HDP ayam petelur.


Author(s):  
G. Ilse ◽  
K. Kovacs ◽  
N. Ryan ◽  
T. Sano ◽  
L. Stefaneanu ◽  
...  

Germfree state and food restriction have been shown to increase life span and delay tumor occurrence in rats. We report here the histologic, immunocytochemical and electron microscopic findings of adenohypophyses of aging, male Lobund-Wistar rats raised at Lobund Laboratories. In our previous study, the morphologic changes in the adenohypophyses of old rats have been extensively investigated by histology, immunocytochemistry and electron microscopy. Lactotroph adenomas were frequent in Long-Evans and Sprague-Dawley rats, whereas gonadotroph adenomas were frequent in Sprague-Dawley and Wistar rats.Male Lobund-Wistar rats were divided into four groups: 1) conventional, which were raised under normal non-germfree environment and received food ad libitum; 2) germfree-food ad libitum; 3) conventional environment-food restricted and 4) germfree-food restricted. The adenohypophyses were removed from 6-month-, 18-month- and 30-month-old rats. For light microscopy, adenohypophyses were fixed in formalin and embedded in paraffin.


Author(s):  
Itaru Watanabe ◽  
Dante G. Scarpelli

Acute thiamine deficiency was produced in mice by the administration of oxythiamine, a thiamine analogue, superimposed upon a thiamine deficient diet. Adult male Swiss mice (30 gm. B.W.) were fed with a thiamine deficient diet ad libitumand were injected with oxythiamine (170 mg/Kg B.W.) subcutaneously on days 4 and 10. On day 11, severe lassitude and anorexia developed, followed by death within 48 hours. The animals treated daily with subcutaneous injections of thiamine (300 μg/Kg B.W.) from day 11 through 15 were kept alive. Similarly, feeding with a diet containing thiamine (600 μg/Kg B.W./day) from day 9 through 17 reversed the condition. During this time period, no fatal illness occurred in the controls which were pair-fed with a thiamine deficient diet.The oxythiamine-treated mice showed a significant enlargement of the liver, which weighed approximately 1.5 times as much as that of the pair-fed controls. By light and electron microscopy, the hepatocytes were markedly swollen due to severe fatty change and swelling of the mitochondria.


1991 ◽  
Vol 105 (2) ◽  
pp. 272-281 ◽  
Author(s):  
P. G. Clifton ◽  
I. N. Rusk ◽  
S. J. Cooper

2019 ◽  
Author(s):  
Margaret L Westwater ◽  
Flavia Mancini ◽  
Jane Shapleske ◽  
Jaco Serfontein ◽  
Monique Ernst ◽  
...  

Background: Anorexia nervosa (AN) and bulimia nervosa (BN) are complex psychiatric conditions, in which both psychological and metabolic factors have been implicated. Critically, the experience of stress can precipitate loss-of-control eating in both conditions, suggesting an interplay between mental state and metabolic signaling. However, associations between psychological states, symptoms and metabolic processes in AN and BN have not been examined. Methods: Eighty-five women (n=22 AN binge/purge subtype, n=33 BN, n=30 controls) underwent remote salivary cortisol sampling and a two-day, inpatient study session to examine the effect of stress on cortisol, gut hormones (acyl-ghrelin, PYY, GLP-1) and food consumption. Participants were randomized to either an acute stress induction or control task on each day, and plasma hormones were serially measured before a naturalistic, ad libitum meal.Results: Cortisol awakening response (CAR) was augmented in AN but not BN relative to controls, with body mass index explaining the most variance in CAR (36%). Acute stress increased acyl-ghrelin and PYY in AN compared to controls; however, stress did not alter gut hormone profiles in BN. Instead, a group-by-stress interaction showed nominally reduced cortisol reactivity in BN, but not AN, compared to controls. Ad libitum consumption was lower in both patient groups and unaffected by stress.Conclusions: Findings extend previous reports of metabolic dysfunction in binge-eating disorders, identifying unique associations across disorders and under stress. Moreover, we observed disrupted homeostatic signaling in AN following psychological stress, which may explain, in part, the maintenance of dysregulated eating in this serious illness.


2019 ◽  
pp. 32-33
Author(s):  
Marianela Andrea Díaz Urrutia ◽  
Amanda Ramos ◽  
Rafaela Menegusso ◽  
Rafael Dewes ◽  
Sóstenez Alexandre Silva ◽  
...  

Introdução: Na atualidade, os hábitos alimentares da população do Brasil e do mundo, se caracterizam por um excessivo consumo de alimentos ricos em açúcares simples, gorduras saturadas e sal. O Diabetes Melito é uma doença crônica não transmissível que se desencadeia, muitas vezes, como consequência de uma alimentação inadequada. Este distúrbio metabólico, gera quadros de hiperglicemia e a terapia nutricional é fundamental no tratamento. Objetivo: O trabalho teve o objetivo de avaliar a ação hipoglicemiante do kombucha como probiótico, farinha de banana verde (FBV) como prebiótico e a associação destes alimentos como simbiótico em uma dieta de cafeteria com alto teor de açúcares oferecida a ratos wistar. Métodos: Para este experimento foram utilizados 35 ratos wistar machos e sadios, recém desmamados com 21 dias de vida, que foram distribuídos em 5 grupos de 7 animais, sendo eles: Grupo 1: dieta ração comercial (controle), Grupo 2: dieta de cafeteria, Grupo 3: dieta de cafeteria + kombucha, Grupo 4: dieta de cafeteria + FBV, Grupo 5: dieta de cafeteria + FBV + kombucha. O ensaio teve uma duração total de 55 dias, onde os primeiros 10 dias foram para induzir o diabetes nos animais dos grupos 2, 3, 4 e 5, mediante a dieta de cafeteria com alto teor de açúcares simples. Posteriormente, começou o período experimental, que teve uma duração de 45 dias, onde o kombucha e solução salina foram administrados por gavagem, com uma dose referente a 5mL/kg de peso do animal. Durante todo o experimento, os animais receberam água e ração ad libitum. Após a eutanásia dos animais, foram coletadas amostras de sangue para análises de glicemia e amilase pancreática mediante turbidimetria. Resultados: Como resultado, foram obtidos os seguintes valores para a glicemia e amilase pancreática de cada grupo: 65,86±11,60 mg/dL e 23,57±4,20 U/L para o Grupo 1; 104,14±114,92 mg/dL e 25,0±14,85 U/L para o Grupo 2; 49,00±13,18 mg/dL e 35,0±15,72 U/L para o Grupo 3; 73,86±24,78 mg/dL e 128,14±50,03 U/L para o Grupo 4; 72,29±33,87 mg/dL e 274,14±105,27 U/L para o Grupo 5, respectivamente. Conclusão: Observando os resultados da glicemia do grupo 1, onde não houve suplementação funcional, verifica-se que a dieta de cafeteria com alto teor de açúcares simples, foi eficaz na indução do diabetes. Ainda analisando os resultados da glicemia, é possível confirmar, que a suplementação isolada, tanto do probiótico kombucha como do prebiótico FBV, apresentam função hipoglicemiante, porém o efeito do prebiótico, é menos eficaz que o efeito do probiótico. Por outro lado, observou-se que, perante a associação simbiótica destes alimentos, o kombucha parece potencializar o efeito redutor da glicemia da FBV. Enquanto aos resultados da concentração de amilase no sangue dos animais, constatou-se que a suplementação isolada de FBV estimulou, consideravelmente, a secreção do referido hormônio e que o kombucha inibiu essa ação estimulante do prebiótico no grupo 5, onde houve associação de ambos sumplementos.


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