Effect of Early Nutrition on Abdominal Fat in Broilers

Abstract

Experiments were conducted to investigate the effect of isocaloric diets varying in protein and fat content or diluted with a combination of cellulose and sand during the 1st wk of life on subsequent abdominal fat pad size in male broiler chicks. In the first experiment chicks were fed diets containing 2,850 kcal metabolizable energy (ME)/kg with 23% protein and low or high total fat (23/LF) or 28% protein with low fat (28/LF) for the 1st 7 days and diets with varying protein and fat levels during the next 19 days. Abdominal fat was significantly higher in chicks fed 28/LF for 7 days followed by 23/HF than for the other treatments. In a second experiment chicks in battery brooders were fed diets with 18, 23, or 28% protein with or without added fat. They were then intermingled and placed in floor pens where they were fed corn-soy starter grower and finisher diets to 7 wk. Body weight at 4 and 7 wk and abdominal fat at 4 wk were not significantly different among treatments, but abdominal fat at 7 wk was significantly higher for chicks fed the 28/LF or 28/HF diets. Effects of feeding the same 18/LF, 23/LF, and 28/LF diets or practical diets containing 3,150 kcal ME/kg with various protein levels during the first week were examined in another experiment. Chicks all received the same diets from 7 to 49 days. No significant differences in size of abdominal fat pad was observed within each diet series.(ABSTRACT TRUNCATED AT 250 WORDS)

Bobot Potong, Karkas, Giblet Dan Lemak Abdominal Ayam Broiler Yang Diberi Gula Merah Dan Kunyit Dalam Air Minum Sebagai Feed Additive

“…Hal ini karena tidak ada perbedaan strain, jenis kelamin dan umur ayam, serta tingkat energi dan komposisi ransum yang digunakan dalam penelitian ini. Jensen et al (1987) berpendapat bahwa kadar lemak abdominal dipengaruhi oleh komposisi ransum, jenis kelamin dan umur ayam, serta tingkat energi ransum.…”

A Modified Bioassay for Energy Utilization in Newly Hatched Chicks.

“…Although nutritional density during the postnatal period of life has been reported to be a modulator of the subsequent growth in rodents (Widdowson and McCance, 1963;Winick and Noble, 1967), its role is not well understood in poultry (Plavnik and Hurwitz, 1985;Bartov, 1987;Jensen et al, 1987). This has elicited an interest in the study of the evolution of energy utilization during the postnatal period in broiler chicks.…”

The Influence of Egg Weight Loss During and Immediately Following Incubation, and Dietary Intake of Energy and Protein on Growth and Feed Efficiency in Broiler Chickens

“…Kubena et al (1974) (Hargis and Creger 1980). Jensen et al (1987) reported a study in which a low-fat 28% CP starter diet was fed to chicks for 7 d followed by a low-fat 23% CP starter diet. …”