Poultry 10 important days in the life of a broiler
Sản phẩm khuyên dùng
Máy thổi khí AT thiết kế nhỏ gọn, lưu lượng khí lớn, áp suất mạnh. Phù hợp để lắp đặt sục khí ao nuôi tôm, trại giống, ương tôm, nuôi tôm nhà màng …
Sản phẩm khuyên dùng
Máy quạt nước 2Lúa 3N sử dụng công suất Motor từ 250W – 750W, từ 10 – 20 cánh, chiều dài 2 – 12m. Cốt lõi của Máy quạt nước 2Lúa 3N là Nhẹ điện - Nhẹ ký -Nhẹ phí.
Sản phẩm khuyên dùng
Khuếch tán khí Fi được thiết kế đặc biệt, hai đường Ống Nano-Tube song song và thông nhau, áp suất tạo ra đủ lớn dẫn đến bong bong khí, đồng đều trên khắp mặt ống.

10 important days in the life of a broiler

Author Katia Pedrosa - poultry nutritionist, publish date Tuesday. October 31st, 2017

10 important days in the life of a broiler

Why does an efficient starter diet during the first 10 days make a difference to broiler performance throughout the production lifecycle? A feeding trial at the University of New England, Australia, has investigated the carry-over effect of HP AviStart from Hamlet Protein on broiler digestive systems.

Katia Pedrosa. Photo: Hamlet Protein

HP AviStart is a source of highly digestible soy protein that is low in anti-nutritional factors. For the trial, 2.5%, 5% and 10% doses were added to maize and wheat-based starter diets which were then fed to male Ross 308 birds from day 1 to day 10. The control diets contained no HP AviStart.

The birds were housed in groups of 10, with 6 replicates per treatment.

Regardless of whether broilers received the wheat or maize-based diet, feed conversion rate and carcass yield were both improved if the diet contained HP AviStart. The highest dose of the specialty soy protein gave the lowest FCR compared to the control (Table 1).

Table 1 - Performance from day 1-35 of birds fed increasing levels of HP AviStart during starter period (day 1-10) in a maize or wheat-based diet.

ᵃ˒ᵇ- Mean values with an ᵃ and ᵇ superscript in the same row are significantly different (P<0.05)

Response control HP AviStart (2.5 g/kg) HP AviStart (5 g/kg) HP AviStart (10 g/kg)
Maize Fl (g) 3932 3803 3860 3773
Maize. BW (g) 2520 2557 2624 2589
Maize, FCR 1.58ᵃ 1.51ᵇ 1.49ᵇ 1.48ᵇ
Wheat Fl (g) 3723 3754 3810 3718
Wheat. BW (g) 2390 2503 2540 2642
Wheat, FCR 1.59ᵃ 1.52ᵃ 1.52ᵃ 1.43ᵇ

Figure 1 shows that, in the maize-based diet, the greatest improvement in the ileal digestibility of protein was 10% at an addition level of 2.5% HP AviStart. The maximum improvement in the wheat-based diet was 5%, observed in broilers fed the diet with 5% HP AviStart.

Figure 1 - Ileal CP digestibility.

 

Table 2 - Carcass yield and meat part yield of 35-day-old broiler chickens fed increasing levels of HP AviStart during the starter period (day 1-10)

Response control HP AviStart (2.5 g/kg) HP AviStart (5 g/kg) HP AviStart (10 g/kg)
Maize Carcass yield (%) 75 76 76 76
Maize. Breast (g) 675 714 739 694
Maize, Thigh (g) 304 334 337 321
Maize., Drumstick (g) 243 245 255 238
Wheat Carcass yield (%) 75 75 76 77
Wheat. Breast (g) 655 638 704 694
Wheat, Thigh (g) 295 299 330 323
Wheat., Drumstick (g) 235 231 249 241

Improved carcass yield was calculated from breast, thigh and drumstick measurements. Compared to the control group, birds fed a starter diet with HP AviStart had around 10% more breast and thigh meat and 5% higher drumstick yield. The highest yield was obtained with 5% addition of HP AviStart (Table 2).

In broilers fed both the maize and wheat-based diets, villus/crypt ratio increased following a starter diet with HP AviStart and was highest at a 5% addition rate. A strong correlation was observed between villus/crypt ratio and breast meat.

Figure 2 - Carryover effect at day 24 on villus/crypt ratio after feeding HP AviStart in the starter diet (day 1-10).

 

These findings support previous studies of the carryover effect of HP AviStart on broiler performance, gut health and protein digestibility. Improved body weight and feed conversion rate alone point to a high return on investment when HP AviStart is added to broiler starter feed.


Sản phẩm khuyên dùng
Máy quạt nước 2Lúa 3N sử dụng công suất Motor từ 250W – 750W, từ 10 – 20 cánh, chiều dài 2 – 12m. Cốt lõi của Máy quạt nước 2Lúa 3N là Nhẹ điện - Nhẹ ký -Nhẹ phí.
Sản phẩm khuyên dùng
Khuếch tán khí Fi được thiết kế đặc biệt, hai đường Ống Nano-Tube song song và thông nhau, áp suất tạo ra đủ lớn dẫn đến bong bong khí, đồng đều trên khắp mặt ống.
Clever marketing can lift your egg price Clever marketing can lift your egg price Innovative farming everywhere you look Innovative farming everywhere you look